JP2009169519A - Information presentation device, information presentation method, and program for information presentation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information presentation device for accurately estimating and utilizing the degree of satisfaction in retrieval of a user. <P>SOLUTION: This information presentation device includes: an operation history collecting means 1 for collecting operation history of a user; a retrieval satisfaction decision means 2 for deciding the degree of satisfaction in the retrieval of a user from the operation history of the user collected by the operation history collecting means. The retrieval operation history collecting means is provided with at least one of: an operation counting means 11 for storing the number of times that the user operates the information presentation device; a content use counting means 12 for storing the number of times that the user uses a content; and a retrieval counting means 13 for storing the number of times that the user inputs retrieval queries. When deciding the degree of satisfaction in the retrieval of the user, at least one of the operation count and the number of uses of content by the user are taken into consideration. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information presenting apparatus, an information presenting method, and an information providing program, and relates to an information presenting apparatus, an information presenting method, and an information presenting program that provide information while estimating a user's situation from a user's search operation history. About.

In an information presentation apparatus in which a large amount of information is stored, in order to search for desired content, a user inputs a search intention as a search query, narrows down the content, and has a function of generating and presenting a content list. Yes. If the desired content cannot be found by entering a single search query because the search intent could not be accurately made, change the search query multiple times and look at the content list each time. Search for content. In using the information presenting apparatus, the user may find the content easily, but the desired content may not be found even if the search query is changed many times. In order to improve the user satisfaction of the information presentation apparatus, it is important to accurately detect a user who cannot find desired content and customize the presentation information.
Patent Document 1 reports a technology that aims to customize a presentation information according to a user situation by estimating a user situation based on a user's information search operation tendency in an information presentation apparatus.

  In Patent Document 1, a user's situation is estimated based on the number of searches, and content is recommended according to the estimated user situation. In the embodiment described in Patent Document 1, the number of searches when the system has been used in the past three times by the user is added up, and the higher the total number of searches, the less likely the search behavior is and the user is less satisfied with the search results Then, it is estimated that the smaller the total number of searches, the better the search behavior and the more satisfied the search result. If the estimated satisfaction level is low, content that matches the user's preference is recommended. On the contrary, if the satisfaction level is high, the user's preference is intentionally deviated for the purpose of correcting the user's preference bias. Recommend content.

As a technique related to the present invention, Patent Document 2 discloses that a qualitative evaluation value for a search result of a search system is obtained (the degree of success decreases as the number of link clicks increases).
JP 2006-330858 A JP 2004-252911 A

  However, since the method of estimating the user situation in Patent Document 1 does not consider browsing of the content of the search result, there is only one desired content in the search result, and only one content is used And the case where most of the search results are desired contents and the user uses a large number of contents. In the techniques disclosed in Patent Documents 2 and 3, qualitative evaluation values and the number of searches are not linked to creation of a content list.

  An object of the present invention is to provide an information presentation apparatus that accurately estimates and utilizes the degree of user's search unfavorableness.

  The information presentation apparatus according to the present invention includes a search favorable / unfavorable determination unit that determines a degree of favorable / unfavorableness of a series of search behaviors of a user based on an operation history of the user, and a content list generation that generates a content list based on the determination result And means.

In addition, the information presentation apparatus of the present invention includes an operation count totaling unit that stores the number of user operations, a content usage count totaling unit that stores a user's content usage count, and a search count that stores the number of searches when the user inputs a search query. At least one of the counting means;
A search favorable / unfavorable determination unit that determines the degree of unfavorableness of the user's search behavior using at least one of the stored user operation count, content usage count, and search count, and a content list based on the determination result Content list generating means for generating.

The information presenting apparatus of the present invention provides a content list presenting means for presenting a content list to the user, and a series of the user based on the user operation history after the content list is presented by the content list presenting means. And a search favorable / unfavorable means for determining the degree of favorable / unfavorable search behavior.
The information presentation apparatus according to the present invention includes an operation history totaling unit that totals a user's operation history, and a search favorable / unfavorable state that determines the degree of the user's search behavior from the user operation history totaled by the operation history totaling unit. A determination unit, a content list generation unit that generates a content list to be presented to the user according to the degree of unfavorability determined by the search favorable / unfavorable determination unit, a content list generated by the content list generation unit is presented to the user and the user Content providing means for receiving an operation input from, and an operation history storage means for storing a user operation input to the content providing means,
The search operation history aggregating unit stores an operation frequency aggregating unit that stores the number of operations of the user on the information presentation device, a content usage number aggregating unit that stores the content usage number of the user, and a number of times the user inputs a search query. And at least one of the search frequency counting means to perform,
The content providing unit includes a user operation input unit that receives an operation input from a user, and a content list presentation unit that presents the content list generated by the content list generation unit to the user.

  In addition, the information presenting apparatus of the present invention includes an active session extracting unit that extracts a user operation sequence to be used for determination of the pros and cons of the search from the history of the plurality of search operations of the user. It is possible to determine whether the search is favorable or not by comprehensively considering the search operation sequence.

  Further, in the information presentation device of the present invention, the active session determination means includes a first content set storage means for holding a content set searched by a designated search query, and a plurality of contents searched by a plurality of past search queries. Content set combining means for combining content sets using the set, second content set storage means for holding the content set generated by the content set combining means, content set of the first content set storage means, and second content A search session determination unit that determines whether or not a specified search query belongs to a past search session by comparing with a content set of the set storage unit, and the content set used for combining by the content combining unit is: Searched by multiple search queries included in the same search session A plurality of searched content sets are used.

  Adopting such a configuration, when determining whether the specified search query belongs to the previous search session, it does not depend only on the last past search query, and the operation time interval By using the search query included in the search session in a comprehensive manner and determining the search session, it is possible to more accurately determine whether the search is good or bad based on a series of user search behaviors. Thus, the object of the present invention can be achieved.

  Further, in the information presentation device of the present invention, the presentation information generation means refers to the presentation history management means for managing the information presentation history of the content, and the presentation history of each content stored in the presentation history management means, and is still Content list generating means for preferentially displaying content that is not displayed. Adopting such a configuration, sorting the content based on the content presentation history, lowering the priority of content that has been presented under different content selection conditions, and increasing the priority of unpresented content In addition, the object of the present invention can be achieved more effectively.

  In the information presentation method of the present invention, at least one of the number of operations of the user on the information presentation device, the number of content usages of the user, and the number of times the user inputs a search query is aggregated by the aggregation unit, and at least one of these is used. Then, it is characterized by determining the degree of unfavorableness of the search behavior of the user and generating a content list based on the determination result.

  In the information presentation method of the present invention, the user's operation history is input, and the operation history totaling means is the user's total number of operations for the information presentation device, which is totaled by the operation count totaling means, At least one of the number of contents used and the number of times the user who has aggregated the search query input the search query is sent to the search favorable / unfavorable judgment unit, and the user's operation history calculated by the operation history aggregation means The degree of favorable / unfavorable search behavior is determined by the search favorable / unfavorable means, and a content list is generated by the content list generating means based on the determination result.

In addition, the information presentation method of the present invention presents a content list by the content list presenting means, and based on the user's operation history after the content list is presented, the user's series of search behaviors are unfavorable. The degree is determined by a search favorable / bad determination unit.
In the information presentation method of the present invention, the user's operation history is input, and the operation history totaling means is the user's total number of operations for the information presentation device, which is totaled by the operation count totaling means, At least one of the number of contents used and the number of times the user who has been counted by the search count counting means inputs the search query is sent to the search favorable / unfavorable judgment means, and the user's operation history calculated by the operation history count means The degree of favorable / unfavorable search behavior is determined by the search favorable / unfavorable means, the content list generating means generates a content list to be presented to the user according to the favorable / unfavorable degree determined by the search favorable / unfavorable means, and the content providing means Presents the content list generated by the content list generation means to the user and Receiving the work input, and wherein the to be stored in the operation history storage means a user operation that is input to said content providing means.

The program for presenting information according to the present invention includes at least one of processing for counting the number of operations performed by the user on the information presentation device, processing for counting the number of content usages of the user, and processing for counting the number of times the user inputs a search query. When,
A process for determining the degree of progress such as the degree of unfavorability of the search behavior of the user using the at least one process;
Processing for generating a content list by content list generation means based on the determination result is executed by a computer.

The information presentation program of the present invention receives the user's operation history as an input, and the operation history totaling unit totals the number of operations for the user's information presentation device totaled by the operation count totaling unit and the content usage number totaling unit. At least one of the user's content usage count and the number of times the user who entered the search query entered by the search count counting means is sent to the search favorable / unfavorable judgment means, and the user's operation history tabulated by the operation history count means A process for determining the degree of favorable / unfavorable search behavior by the search favorable / unfavorable means,
Processing for generating a content list by content list generation means based on the determination result is executed by a computer.

The information presentation program of the present invention includes a process of presenting a content list by a content list presenting means,
Causing the computer to execute a process of determining the degree of favorable / unfavorableness of the series of search behaviors of the user based on the user's operation history after the presentation of the content list by the search favorable / unfavorable determination means. Features.

The information presentation program of the present invention receives the user's operation history as an input, and the operation history totaling unit totals the number of operations for the user's information presentation device totaled by the operation count totaling unit and the content usage number totaling unit. At least one of the user's content usage count and the number of times the user who has been counted by the search count counting means inputs the search query is sent to the search favorable / unfavorable judgment means, and the user's operation history tabulated by the operation history count means A process for determining the degree of favorable / unfavorable search behavior by the search favorable / unfavorable means,
A process for generating a content list to be presented to the user in the content list generating means according to the degree of unfavorability determined by the search favorable / unfavorable means;
Processing for presenting a content list generated by the content list generation unit to the user in the content providing unit, receiving an operation input from the user, and storing the user operation input to the content providing unit in the operation history storage unit When,
Is executed by a computer.

  An effect of the present invention is that a user's search favorable degree of unfavorableness is accurately estimated, a content list is generated based on the result, and the user can use it.

  The reason for this is that when determining the degree of unfavorableness of the search behavior of the user, a series of search behaviors can be obtained by considering the operation history of the user, for example, data based on at least one of the number of operations, the number of contents used, and the number of searches. This is because the degree of favorable / unfavorable search behavior of the search operation is determined from the above, and a content list is generated based on the result.

[First embodiment]
FIG. 1 is a block diagram showing the configuration of the first embodiment of the present invention.

In the information presentation apparatus according to the present embodiment, the operation history totaling unit 1 that totals the user's operation history, and the search favor that determines the degree of favorableness of the user's search behavior from the user operation history totaled by the operation history totaling unit 1. The content list generating unit 3 that generates a content list to be presented to the user according to the degree of favorable / unfavorable status determined by the malfunction determining unit 2, the search favorable / unfavorable unit determining unit 2, and the content list generated by the content list generating unit 3 are presented to the user The content providing unit 4 that receives an operation input from the user and the operation history storage unit 5 that stores the user's operation input to the content providing unit 4 are configured.
The search operation history totaling unit 1 includes an operation frequency totaling unit 11 that stores the number of times the user has operated the information presentation device, a content usage number totaling unit 12 that stores the user's content usage count, and the number of times the user has input a search query. And at least one of the search count totaling unit 13 for storing The content providing unit 4 includes a user operation input unit 41 that receives an operation input from the user, and a content list presentation unit 42 that presents the content list generated by the content list generation unit 3 to the user.

  The operation of the information presentation apparatus of this embodiment will be described using FIG. FIG. 2 is a flowchart showing the operation of the information presentation apparatus of this embodiment.

(Step S1)
The operation history totaling unit 1 extracts a user operation history stored in the operation history storage unit 5 and receives an operation count totaling unit when receiving a command to generate a content list in response to a request from the user. 11 counts the number of user operations, counts the number of contents used by the user (number of used contents) in the content usage count totaling section 12, and counts the number of times the user inputs a search query in the search count totaling section 13, that is, the search count Is counted. Hereinafter, the number of operations is No, the number of used contents is Nc, and the number of searches is Ns. Then, the process proceeds to step S2.

(Step S2)
The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable degree of search using the operation count No, the content count Nc, and the search count Ns tabulated in step S1. The calculation method will be described later. After calculating the degree of unfavorable search, the process proceeds to step S3.

(Step S3)
In accordance with the search favorable condition calculated in step S2, it is determined that the user's search behavior is favorable as the value of the search favorable value is large, and the user's search behavior is determined to be poor as the search favorable condition is small. FIG. 4 shows a determination table for determining whether or not the search is favorable based on the degree of search favorableness. Note that the determination table shown in FIG. 4 is an example, and other determinations may be taken. An embodiment is also conceivable in which the value of the degree of search unfavorableness is sent as it is to the content list generating unit 3 without determining the degree of unfavorable search. Next, the process proceeds to step S4.

(Step S4)
The content list generation unit 3 generates a content list to be presented to the user according to the search unfavorability determined in step S3. As a content presentation method referring to the degree of unfavorable search, a method of recommending recommended content to a user who seems to be unsuccessful in search to support the user's search behavior can be considered. After the content list is generated, the process proceeds to step S5.

(Step S5)
The content list generated by the content list generation unit 3 is presented to the user by the content list presentation unit. Then, the process proceeds to step S6.

(Step S6)
After the content list is presented by the content list presentation unit 42, the user operation input unit 41 waits for an operation input from the user. If there is an operation input such as content selection or search query input for the purpose of re-searching, the operation content is stored in the operation history storage unit 5. If the input from the user is a search query input, the process proceeds to step S1 to execute a series of content list generation processing.

  As described above, in the information presentation apparatus according to the present embodiment, the number of operations No, the number of used contents Nc, and the number of searches Ns tabulated by the operation history tabulation unit 1 are used to determine the user's search operation preference from a series of search behaviors. It is possible to accurately determine the degree of malfunction.

  Note that the use of one of the operation number No, the used content number Nc, and the search number Ns may be used to determine whether the search is good or bad. However, in order to more accurately determine the degree of unfavorableness, it is desirable to determine the unfavorableness of the search using two of the operation number No, the used content number Nc, and the search number Ns. In order to obtain further effects, the number of operations No, the number of searches Ns that would represent the user's exhaustion level, the number of used contents Nc that would represent the user's knowledge, and the degree of trial and error of the user would be represented. It is more desirable to determine the degree of unfavorability of the user's search from a series of search behaviors using the three values of the search count Ns.

The operation history total data is not limited to the operation number No, the used content number Nc, and the search number Ns, but other data may be added in addition to the operation number No, the used content number Nc, and the search number Ns. That is, the user's degree of favorable / unfavorable search may be determined using four or more values. Furthermore, the number of operations No, the number of used contents Nc, and the number of searches Ns may be replaced with other data.
(Example of a method for calculating the degree of unfavorability of search in step S2)
Hereinafter, a first method for calculating the degree of favorable / unfavorable search will be described.

(First method)
The first method is a method in which, in step S2, the search favorable / unfavorable determination unit 2 calculates the degree of favorable / unfavorable search using the number of operations No, the number of contents Nc, and the number of searches Ns counted in step S1.

  The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable degree of search using the operation count No, the content count Nc, and the search count Ns tabulated in step S1.

  The degree of unfavorable search is as follows: (1) The greater the number of used contents Nc, the better the search. (2) The greater the number of searches Ns, the worse the search. (3) However, it is used while the number of operations is small. The calculation is performed using an expression that satisfies the three conditions that the search is not malfunctioning even if the number of contents Nc is small.

An example of the calculation formula for the search unfavorable degree based on the above policy is shown in FIGS. 3 (a) and 3 (b). Α, β, and γ in the calculation formula are parameters for adjusting the degree of influence of the number of contents Nc, the number of operations No, and the number of searches Ns, respectively. Set a real number value for each parameter and adjust it according to the service. An example of setting is an example in which each value is set to 1.0.
Both formulas in Fig. 3 (a) and Fig. 3 (b) are basically synonymous, but the formula in Fig. 3 (b) is designed so that the range of favorableness is a real number from 0 to 1. ing.

  Note that the calculation formula shown in FIG. 3 is an example, and other calculation formulas may be used as long as the above policy is satisfied.

(Second method)
The second method is a method in which, in step S2, the search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable degree of search using the number of contents Nc tabulated in step S1.

  The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable degree of search using the number of contents Nc tabulated in step S1 and the time t from the start of the search. The degree of favorable / unfavorable search is as follows: (1) The higher the number of used content Nc, the better the search. (2) If the content is used at a rate of 1 content per T second, the search is good, but If not, the search is not successful. Note that T in (2) above is a real number larger than 0, that is, a numerical value defined by T> 0, and has the meaning that “the user can be satisfied if one content is found in T seconds”. T can be any real number greater than or equal to 0, but a numerical value such as T = 60 or T = 30 is defined according to the service. Further, T is not a fixed value, and may be a value that varies depending on, for example, the number of operations No or the number of searches Nc.

  An example of the calculation formula for the degree of unfavorable search based on the above policy is shown in FIGS. 5 (a) and 5 (b). In FIG. 5, [] in [x] is a Gaussian symbol, and [x] represents an integer not exceeding x. Note that the two equations in FIG. 5 are basically synonymous, but the calculation equation in FIG. 5 (b) is designed so that the range of favorable / unfavorableness is a real number from 0 to 1.

  Note that the calculation formula shown in FIG. 5 is an example, and other calculation formulas may be used as long as the above policy is satisfied.

In addition, as described in this example, in the calculation of the degree of search unfavorableness, there is also an implementation method for calculating the degree of unfavorable search using only a part of the number of operations No, the number of contents Nc, and the number of searches Ns counted in step S1. It is valid. That is, a variable to be used for calculation may be determined as necessary from the number of operations No, the number of contents Nc, and the number of searches Ns.
(Method for Counting the Number of Content Used by the User (Number of Used Content) in Step S1) In step S1, the number of content used by the user (number of used content) in the content usage number counting unit 12 of the operation history counting unit 1 ) Will be described.

  First, as a totaling method of the used content number Nc, there is a totaling method in which information related to user content usage is counted from the operation history stored in the operation history storage unit 5, and the counted number is used as the used content number.

  Next, as another method of counting the number of used contents Nc, a method of measuring a time difference between a content use operation and an operation performed by the user immediately thereafter and using it for counting the number of used contents can be considered.

  If the time difference t between the content use operation and the operation performed by the user immediately after that is less than T seconds, the user has shifted to the next operation without using the content sufficiently, i.e., the user likes the used content. If t <T, α (0 ≦ α <1) is added to the number of used contents Nc, while if the time difference t is T seconds or more, 1 is added to the number of used contents Nc. Is the method.

  The above T can be set as a real number greater than 0, and “content requires less than T seconds to use it effectively” or “content that requires less than T seconds is less useful. The numerical value T has the meaning of

  The value of T can be set freely depending on the service, but it can be set to a large value such as T = 30 in consideration of the effects of network delay for services over the network, or T for users with a high level of proficiency. An example of setting to a small value such as = 5 can be considered, but the value of T is adjusted according to the service. Further, T is not a fixed value, and may be a value that varies depending on, for example, the number of operations No or the number of searches Nc.

  Further, another tabulation method for the number of used contents Nc includes a tabulation method for changing a value to be added to the number of used contents Nc according to the size of the used contents.

  This is based on the hypothesis that content with extremely small file size has little information stored and is inferior in use value. For example, a content file size threshold F (0 <F) is set and used. If the file size f of the content is less than the threshold F, that is, if f <F, α (0 ≦ α <1) is added to the number of used contents Nc, while if the file size f is greater than or equal to the threshold F and greater than or equal to seconds This is a counting method of adding 1 to the number of used contents Nc. The threshold value F may be a variable value as in the above example.

Further, as another method of counting the used content number Nc, a method of adding a satisfaction value input by the user when using the content to the used content number Nc may be considered.
(Operation for generating a content list in step S4)
An example of an operation of generating a content list in the content list generation unit 3 in step S4 will be described.

  As an example of this, in the content recommendation service in the content list generation unit 3, an example in which the recommended content is changed according to the search favorable / unfavorable degree in the search favorable / unfavorableness determination unit 2 can be given.

  In this example, for example, if the search is judged to be unsatisfactory due to the badness of search, popular content is recommended to the user. Recommend certain content to the user. Alternatively, when the search is determined to be unsatisfactory, it is also effective to recommend a content called “standard” that has been continuously used for a long period of time to the user. In addition, when it is determined that the search is favorable, an example in which the user recommends content other than the region currently being searched and aims to stimulate the user's new interest is also effective.

  As another example, a link button for calling a help function is displayed on the screen or a link button for calling an operator when the user's search is determined to be bad due to the badness of search. An example of displaying on the screen is also effective.

  As another example, when the search is judged to be unsatisfactory due to the degree of unfavorable search, a keyword for narrowing down the content is recommended to the user using the method described in Japanese Patent Application Laid-Open No. 2006-040266. Examples are also valid.

  Furthermore, in the case of an example in which a keyword for narrowing down the content is recommended to the user using the method described in Japanese Patent Application Laid-Open No. 2006-040266, the case where the search is determined to be good due to the badness of search, It is also effective to recommend keywords other than the region that the user is currently searching for in order to evoke new interest from the user.

  The recommended content in the content recommendation or the keyword recommendation is an example of the information presenting apparatus according to the present embodiment, and further recommended content may be defined according to the service.

(Other configuration example of this embodiment)
The configuration of the present embodiment may be configured as a single machine, but as another configuration example, the configuration may be configured as a device including a network such as the Internet or an intranet.

  As a configuration example including a network, only the content providing unit 4 is a separate machine, the network between the content list generating unit 3 and the content providing unit 4 and between the content providing unit 4 and the operation history storage unit 5 An example of a configuration in which connection is made through a network is given.

  This form is an example of a configuration for providing a service in a client-server type in which only the content providing unit 4 is a user-side client machine such as a PC and the other parts are realized on a server machine.

  As another configuration example, when performing a client-server type service, the server side machine is equipped with only the search favorable / unfavorable judgment unit 2 and the content list generation unit 3, and the other units are connected to the client side machine. A configuration example to be mounted is also conceivable. In the case of this configuration example, it is not necessary to permanently store the user's operation history in the server side machine, which is an effective configuration example from the viewpoint of protecting the privacy of the user.

  Furthermore, as another configuration example, a configuration example in which only the search favorable / unfavorable determination unit 2 is mounted on another machine can be considered. This configuration is an effective configuration example in an example in which a function for determining whether a search is bad or not is provided as an additional service for a content providing service operated by another service provider.

Note that the above example given as a configuration example via a network is merely an example of a machine configuration, and the configuration of this embodiment can be implemented even if another machine configuration is adopted.
(Other operation example of this embodiment)
Another example of the operation of the information presentation apparatus according to the present embodiment will be described with reference to FIG.

  FIG. 6 is a flowchart showing the operation of another operation example.

  In the flowchart shown in FIG. 6, the contents of operations from step S1 to step S3, and steps S5 and S6 are the same as those in the flowchart shown in FIG. The difference between the flowchart of FIG. 2 and the flowchart of FIG. 6 is the difference in the execution order of each step and the difference between steps S4 and S7.

  This operation example will be described with reference to FIG.

(Step S7)
The content list generation unit 7 generates a content list to be presented to the user, that is, a display screen. At the time of generation, as shown in step S4, there can be considered an implementation method for listing content according to the degree of search unfavorableness, or an implementation method for generating a content list regardless of the degree of unfavorable search. In this example, any generation method may be used. Next, the process proceeds to step S5.

(Step S5)
The content list generated by the content list generation unit 3 is presented to the user by the content list presentation unit. Next, the process proceeds to step S6.

(Step S6)
After the content list is presented by the content list presentation unit 42, the user operation input unit 41 waits for an operation input from the user. If there is an operation input such as content selection or search query input for the purpose of re-searching, the operation content is stored in the operation history storage unit 5. If the input from the user is a search query input, the process proceeds to step S1.

(Step S1)
The operation history totaling unit 1 extracts the user's operation history stored in the operation history storage unit 5, totals the number of user operations in the operation count totaling unit 11, and is used by the user in the content usage count totaling unit 12 The number of contents (number of used contents) is totaled, and the number of times the user inputs a search query, that is, the number of searches is totaled in the search count totaling unit 13. Hereinafter, the number of operations is No, the number of used contents is Nc, and the number of searches is Ns. Proceed to step S2.

(Step S2)
The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable degree of search using the operation count No, the content count Nc, and the search count Ns tabulated in step S1. After calculating the degree of unfavorable search, the process proceeds to step S3.
(Step S3)
In accordance with the search favorable condition calculated in step S2, it is determined that the user's search behavior is favorable as the value of the search favorable value is large, and the user's search behavior is determined to be poor as the search favorable condition is small. FIG. 4 shows a determination table for determining whether or not the search is favorable based on the degree of search favorableness. Note that the determination table shown in FIG. 4 is an example, and other determinations may be taken. The search favorable / unsatisfactory determination in step S3 is an index indicating whether or not the content list generated in step S7 and presented to the user in step S5 was beneficial to the user.

  With the operation described above, the information presentation device according to this operation example can accurately determine whether or not the content list generated by the content list generating unit 3 and provided by the content providing unit 4 was beneficial to the user. It becomes.

  FIG. 7 is a flowchart showing still another operation.

  The difference between the flowchart of FIG. 7 and the flowchart of FIG. 6 is an operation for executing steps S1 and S2 before execution of step S7 and a method for determining the degree of unfavorableness of search behavior in step S3.

  The operation of the present invention will be described with reference to FIG.

(Step S1)
The operation history totaling unit 1 extracts the user's operation history stored in the operation history storage unit 5, totals the number of user operations in the operation count totaling unit 11, and is used by the user in the content usage count totaling unit 12 The number of contents (number of used contents) is totaled, and the number of times the user inputs a search query, that is, the number of searches is totaled in the search count totaling unit 13. Hereinafter, the number of operations is No, the number of used contents is Nc, and the number of searches is Ns. Proceed to step S2.

(Step S2)
The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable search E1 using the number of operations No, the number of contents Nc, and the number of searches Ns counted in step S1. After calculating the search unfavorable degree E1, the process proceeds to step S7.
(Step S7)
The content list generation unit 7 generates a content list to be presented to the user, that is, a display screen. At the time of generation, as shown in step S4, there may be an implementation method for listing contents according to the search unfavorable degree E1, and an implementation method for generating a content list regardless of the search unfavorable degree E1. In this example, any generation method may be used. Proceed to step S5.

(Step S5)
The content list generated by the content list generation unit 3 is presented to the user by the content list presentation unit. Proceed to step S6.

(Step S6)
After the content list is presented by the content list presentation unit 42, the user operation input unit 41 waits for an operation input from the user. If there is an operation input such as content selection or search query input for the purpose of re-searching, the operation content is stored in the operation history storage unit 5. If the input from the user is a search query input, the process proceeds to step S1.

(Step S1 2nd time)
The operation history totaling unit 1 extracts the user operation history stored in the operation history storage unit 5, totals the number of user operations in the operation frequency totaling unit 11, and the content usage number totaling unit 12 The number of used contents (number of used contents) is totaled, and the search count totaling unit 13 counts the number of times the user has input a search query, that is, the number of searches. Hereinafter, the number of operations is No, the number of used contents is Nc, and the number of searches is Ns. Proceed to step S2.

(Step S2 2nd time)
The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable search E2 using the number of operations No, the number of contents Nc, and the number of searches Ns tabulated in step S1. After calculating the search unfavorable degree E2, the process proceeds to step S3.
(Step S3)
In accordance with the search favorable condition E1 calculated in step S2 and the search favorable condition E2 calculated in step S2 in the second time, the degree of favorable condition of the user's search behavior is determined.

  In this example, the degree of favorable / unfavorable search is determined in the second time after presenting the content list in step S5 after the search favorable / unfavorable degree E1 calculated in step S2 before presenting the content list in step S5. The difference from the search favorable condition E2, that is, the value of (search favorable condition E2) − (search favorable condition E1) is set as the favorable condition of the search.

  If the search unfavorable degree calculated in step S2 is defined to take a large value when the search is good and take a small value when the search is unsatisfactory, (search unfavorable degree E2) − (search unfavorable degree) If the value of (E1) is positive, it can be determined that the search behavior is improving, and if the value of (Search Dislike E2)-(Search Dislike E1) is negative, the search behavior is darkened. It can be judged.

  Therefore, if the value of (search unfavorable degree E2) − (search unfavorable degree E1) is positive, the content presented in step S5 is useful for the user, and (search unfavorable degree E2) − (search unfavorable degree E1) If the value is negative, it can be determined that the content presented in step S5 is useless for the user.

  The information presentation apparatus according to this example is very effective in determining whether or not the recommended information is useful for the user when recommending information to the user.

With the operation described above, the information presentation device according to this example can accurately determine whether the content list generated by the content list generation unit 3 and provided by the content provision unit 4 is beneficial to the user. Become.
[Second Embodiment]
FIG. 8 is a configuration diagram showing the configuration of the second exemplary embodiment of the present invention.

  In the information presentation device according to the present embodiment, in addition to the configuration of the information presentation device according to the first embodiment, the search performance is poor among the history of a plurality of user search operations stored in the operation history storage unit 5. It has an active session extraction unit 6 that extracts an operation sequence of a user to be used for determination.

  FIG. 9 is a flowchart showing the operation of the information presentation apparatus of the second embodiment.

  The operation of this embodiment will be described with reference to FIG.

(Step S8)
The active session extraction unit 6 extracts the user operation history to be used from the user operation history stored in the search history storage unit 5 in the current determination of the search behavior.

  Proceed to step S1.

(Step S1)
In the operation history totaling unit 1, using the user operation history extracted from the operation history storage unit 5 in the active session extraction unit 6, the operation count totaling unit 11 totals the number of user operations, and in the content usage number totaling unit 12, The number of contents used by the user (number of used contents) is totaled, and the search count totaling unit 13 counts the number of times the user has input a search query, that is, the number of searches. Hereinafter, the number of operations is No, the number of used contents is Nc, and the number of searches is Ns.

  Proceed to step S2.

(Step S2)
The search favorable / unfavorable determination unit 2 calculates the favorable / unfavorable degree of search using the operation count No, the content count Nc, and the search count Ns tabulated in step S1. The calculation method is the same as in the first embodiment. After calculating the search favor,
Proceed to step S3.
(Step S3)
In accordance with the search favorable condition calculated in step S2, it is determined that the user's search behavior is favorable as the value of the search favorable value is large, and the user's search behavior is determined to be poor as the search favorable condition is small. FIG. 4 shows a determination table for determining whether or not the search is favorable based on the degree of search favorableness. Note that the determination table shown in FIG. 4 is an example, and other determinations may be taken. An embodiment is also conceivable in which the value of the degree of search unfavorableness is sent as it is to the content list generating unit 3 without determining the degree of unfavorable search.

  Proceed to step S4.

(Step S4)
The content list generation unit 3 generates a content list to be presented to the user according to the search unfavorability determined in step S3. As a content presentation method referring to the degree of unfavorable search, a method of recommending recommended content to a user who seems to be unsuccessful in search to support the user's search behavior can be considered.
After the content list is generated, the process proceeds to step S5.

(Step S5)
The content list generated by the content list generation unit 3 is presented to the user by the content list presentation unit.

  Proceed to step S6.

(Step S6)
After the content list is presented by the content list presentation unit 42, the user operation input unit 41 waits for an operation input from the user. If there is an operation input such as content selection or search query input for the purpose of re-searching, the operation content is stored in the operation history storage unit 5. If the input from the user is a search query input, the process proceeds to step S1 to execute a series of content list generation processing.

With the operation described above, in the information presentation device according to the present embodiment, in addition to the effects of the information presentation device according to the first embodiment, it is possible to determine whether or not the search is favorable using a plurality of user search operation sequences. It becomes possible.
(Method for extracting user operation history in step S8)
In this example, in step S8, from the user operation history stored in the search history storage unit 5 by the active session extraction unit 6, a method for extracting the user operation history to be used for the determination of whether the search action is good or bad explain.

  First, in a web servlet container such as Apache Tomcat (developed by Apache Software Foundation) such as Apache Tomcat (Apache Software Foundation development), a series of search behaviors that should be used for search good / bad judgment is distinguished by the session ID given at the time of access. There is a method of extracting the same session ID as the session ID given at the time of access. In general, the search service is often implemented as a web service, and in the web servlet container used when implementing the web service, a session ID for distinguishing a series of user accesses is used to distinguish a series of search actions. is there.

  The implementation method using the session ID assigned by the Web servlet container is an example of implementation. If there is a function for distinguishing a series of user accesses by other methods, there is a method of using that function.

  Next, as a second method, a method of distinguishing a series of search behaviors from the user's operation history according to the user's access according to the time interval can be considered. For example, the threshold T is set as a threshold for the user access time interval, the user operation histories stored in the search history storage unit 5 are arranged in time series, and the time interval between adjacent operations exceeds the threshold T. This is a method of separating search behavior.

  There are various methods such as a method of setting the threshold T of the time interval as a fixed value, a setting method that can be varied depending on the operation time zone, such as the number of operations and the number of searches, and a setting method that is variable for each user. Conceivable.

  Further, as the third method, an implementation method in which the first method and the second method in this example are combined can be considered. This is because the first execution method is used to distinguish a series of search actions using session IDs, etc., and then a different session ID is assigned according to the second execution method, focusing on the time interval between search actions. This is a method of extracting longer-term search behavior by integrating the search behaviors possessed.

By the operation described above, the active session extraction unit 6 can more effectively perform the search favorable / unfavorable determination by extracting the operation history to be used for the search favorable / unfavorable determination from the search history storage unit 5. It becomes possible.
[Third embodiment]
A third embodiment of the present invention will be described.

  In the third embodiment, an information presentation apparatus in which the active session extraction unit 6 in the second embodiment is developed will be described.

  Specifically, in step S8 of the flowchart of the second embodiment in FIG. 9, the active session extraction unit 6 searches for the search action from the user operation history stored in the search history storage unit 5. An embodiment in which a method for extracting a user's operation history to be used for good / bad judgment will be described.

  FIG. 10 is a configuration diagram showing the configuration of the active session extraction unit 6 in the third embodiment of the present invention.

  The active session extraction unit 6 according to the present embodiment includes a search query storage unit 61 that sequentially stores the search queries stored in the operation history storage unit 5, and a content search unit 62 that searches for content according to the search query. The first content set storage unit 63 that holds the content set searched by the content search unit 62 using the search query stored in the search query storage unit 61, and the search query stored in the past are stored in the search query storage unit 61 A search query history storage unit 64 to be used, and a content set combining unit 65 to combine a content set using a plurality of content sets searched by the content search unit 62 using a plurality of search queries stored in the search query history storage unit 64 A second content set storage unit 66 for holding the content set generated by the content set combining unit 65, and the first content The search query stored in the search query storage unit 61 by comparing the content set in the combined storage unit 63 with the content set in the second content set storage unit 66 is the same search as the past query stored in the search query history storage unit 64 And a search session determination unit 67 for determining whether or not it belongs to a session.

  FIG. 11 shows a user operation to be used for determining whether a search action is good or bad from the user operation history stored in the search history storage unit 5 by the active session extraction unit 6 in the information presentation apparatus according to the present embodiment. It is a flowchart which shows the operation | movement which extracts a log | history.

  The operation of the active session extraction unit 6 in this embodiment will be described with reference to FIG. In this description, n search queries Qi (1 ≦ i ≦ n) from the latest search query Q1 to the n-th (n is a positive integer greater than or equal to 2) search query Qn are the same search session. And the search query Qi is stored in the search query history storage unit 64.

(Step S61)
The search query storage unit 61 stores a search query Qn + 1 for which a search session is to be determined next. This search query Qn + 1 is the (n + 1) th search query counted from the latest search query Q1. Then, the process proceeds to step S62.

(Step S62)
The content search unit 62 performs a search using the search query Qn + 1, and acquires a content set Cn + 1 as a search result. The content set Cn + 1 is stored in the first content set storage unit 63. Then, the process proceeds to step S63.

(Step S63)
For each search query Qi (1 ≦ i ≦ n) stored in the search query history storage unit 64, the content search unit 62 performs a search, and as a result, a content set Ci (1 ≦ i ≦ n) is acquired. The acquired content set Ci (1 ≦ i ≦ n) is sent to the content set composition unit 65. Then, the process proceeds to step S64.

(Step S64)
The content set combining unit 65 combines the content sets using the content set Ci (1 ≦ i ≦ n). Various methods are conceivable as a synthesis method. Here, as an example, a sum set of Ci (1 ≦ i ≦ n) is calculated to obtain a combined content set D [C1,..., Cn]. The synthesized content set D [C1,..., Cn] is stored in the second content set storage unit 66. Proceed to step S65.

(Step S65)
In the search session determination unit 67, the content set Cn + 1 stored in the first content set storage unit 63 and the content set D [C1, ..., Cn] stored in the second content set storage unit 66 are Compare. Various methods can be considered as the comparison method. Here, as an example, the number of contents included in the product set Cn + 1∩D [C1,..., Cn] of the first content set and the second content set | Cn + 1∩D [C1, ..., Cn] | and the number of contents | Cn + 1 | contained in the first content set Cn + 1, and the evaluation value E = | Cn + 1∩D [C1, ..., Cn] | / | Cn + 1 | Then, the process proceeds to step S66.

(Step S66)
When the evaluation value E is large, it can be determined that the content of the search query Cn + 1 means that the content of the search queries C1, ..., Cn so far is similar, and when the evaluation value E is small, the search It can be determined that the content of the query Cn + 1 is different from the content of the search queries C1, ..., Cn so far. Based on this, when the evaluation value E is equal to or greater than the threshold value α (0 ≦ α ≦ 1), the search session determination unit 67 determines that they are the same search session. When the evaluation value E is less than the threshold value α, it is determined that the search session is different. If it is determined that the search session is the same, the process proceeds to step S68. If it is determined that the search session is different, the process proceeds to step S67.

(Step S67)
The search query Qi (1 ≦ i ≦ n) stored in the search query history storage unit 64 is extracted as an active session and sent to the operation history totaling unit 1.
The process in the active session extraction unit 6 is terminated, and the process proceeds to the process in the operation history storage unit 1.

(Step S68)
The search query Qn + 1 stored in the search query storage unit 61 is added to the search query history storage unit 64 and stored. The search query history storage unit 64 stores an operation history including n + 1 search queries from the search query Q1 to the search query Qn + 1.

  Then, the process proceeds to step S1 to process the (n + 2) th search query Qn + 2.

  In the above description, the content search unit 62 performs content search using each search query stored in the search query history storage unit 64 in step S63, and the content searched by each search query in step S64. Although it is described that the content set to be combined and stored in the second content set storage unit 66 is combined, the second content set is obtained from the search query stored in the search query storage unit 64 by combining step S63 and step S64. A search query for searching for a content set to be stored in the storage unit 66 is synthesized, the content search unit 62 searches for the content set using the synthesized search query, and the content set is stored in the second content set storage unit 66. You may do the operation of storing.

  As described above, in the active session extraction process according to the present embodiment, it is possible to determine whether the user is continuing the search for the same search purpose based on the meaning of the search query. As a result, when the user changes the search purpose and starts searching again, it is possible to correctly extract the active session, and it is possible to more accurately carry out the determination of whether the search is good or bad, which is the object of the present invention. It becomes.

FIG. 12 shows an example of a search query stored in the search query history storage unit 4 in the present embodiment. In the example of the search query shown in Fig. 12, the judgment process up to the third search query is completed, search query Q1 = "security", search query Q2 = "security &vulnerability", search query Q3 = "vulnerability" It is assumed that “& diagnosis” is a search query for the same search purpose, and the search query history information 110 is stored in the search query storage unit 64.
Note that the search query history information 110 illustrated in FIG. 12 is an example of search query information stored in the search query storage unit 64, and may be in other formats as long as it stores the search query history. It doesn't matter.

  Here, as the fourth search query, a search query Q4 = “security & distributed” is determined as a search query. Subsequently, as a fifth search query, search query Q5 = “broadband” is determined as a search query. The operation will be described with reference to the flowchart of FIG.

  First, the case where the fourth search query Q4 = “security & distribution” is determined will be described.

(Step S61) 1st time
The search query storage unit 61 stores a search query Q4 = “security & distribution” for which a search session is to be determined. Proceed to step S62. (Step S62) 1st time
The content search unit 62 performs a search with the search query Q4 = “security & distribution”, and acquires the content set C4 as a search result. The content set C4 is stored in the first content set storage unit 63. Proceed to step S63.

(Step S63) 1st time
The content search unit 62 searches the search query Q1 = “security”, search query Q2 = “security & vulnerability”, search query Q3 = “vulnerability & diagnosis” stored in the search query history storage unit 64 , First search query Q1 = content set C1 as search result of “security”, second search query Q2 = content set C2 as search result of “security & vulnerability”, third search query Q3 = Each content set C3 is acquired as a search result of “Vulnerability & Diagnosis”. The acquired content sets C1, C2, and C3 are sent to the content set composition unit 65. Proceed to step S64.

(Step S64) 1st time
The content set combining unit 65 combines the content sets using the content set Ci (1 ≦ i ≦ 3). Various methods are conceivable as a synthesis method. Here, as an example, a sum set of Ci (1 ≦ i ≦ 3) is calculated to obtain a combined content set D [C1, C2, C3]. FIG. 13 (a) shows a Venn diagram that describes the relationship between the content sets C1, C2, and C3 and the combined content set D [C1, C2, C3]. In the Venn diagram shown in FIG. 13 (a), the content set 111 of the content set C1, the content set 112 of the content set C2, the content set 113 of the content set C3, and the content set synthesized as the union of the content sets C1, C2, and C3 A content set 114 that is D [C1, C2, C3] is illustrated. The content set D [C1, C2, C3] is stored in the second content set storage unit 66, and the process proceeds to step S65.

(Step S65) 1st time
The search session determination unit 67 compares the content set C4 stored in the first content set storage unit 63 with the content set D [C1, C2, C3] stored in the second content set storage unit 66.

  In the Venn diagram of FIG. 13A, the content set 114 of the content set C4 is also illustrated, and the relationship between the content set C4 and the content set D [C1, C2, C3] is described. Here, various methods can be considered as a comparison method. Here, as an example, the number of contents included in the product set C4∩D [C1, C2, C3] of the first content set and the second content set | C4∩ Calculate the evaluation value E = | C4∩D [C1, C2, C3] | / | C4 | using D [C1, C2, C3] | and the number of contents contained in the first content set C4 | C4 | To do. FIG. 14 (a) shows the number of contents included in the content set C1, C2, C3, C4, D [C1, C2, C3] (= C1∪C2∪C3), C4∩D [C1, C2, C3]. Show. When the number of contents included in each content set is FIG. 14A, the evaluation value E is 504/900 = 0.56. Proceed to step S66.

(Step S66) 1st time
If the evaluation value E is large, it can be determined that the content of the search query Q4 is similar to the content of the search queries Q1, Q2, Q3 so far, and if the evaluation value E is small, the search query Q4 is meaningful It can be determined that the content of the search query and the content of the search queries Q1, Q2, and Q3 so far are different. Based on this, the search session determination unit 67 determines whether or not the search sessions are the same using the evaluation value E = 0.56 calculated in step S65. Here, the threshold value α of the evaluation value E is set to 0.4, and when the evaluation value E is equal to or greater than the threshold value α, it is determined that the search session is the same. When the evaluation value E is less than the threshold value α, it is determined that the search session is different.

  In this case, the evaluation value E = 0.56> threshold α = 0.4, and it is determined that the search session is the same.

  Referring to the Venn diagram in FIG. 13 (a), the content set C4 and the content set D [C1, C2, C3] are largely overlapped. Therefore, the meaning of the search query Q4 and the search queries so far It can be determined that the contents of Q1, Q2, and Q3 are similar, and it is appropriate to determine that the search query Q4 = “Security & Distributed” is the same search session as when the search queries Q1, Q2, and Q3 were entered. It is.

  Since it is determined that the search session is the same, the process proceeds to step S68.

(Step S68) 1st time
The search query Q4 is stored in the search query history storage unit 64. As a result, the search query history storage unit 64 stores the search queries Q1, Q2, Q3, and Q4.

  Next, a case where search query Q5 = “broadband” is input as the fifth search query will be described.

(Step S61) 2nd time
The search query storage unit 61 stores a search query Q5 = “broadband” for which a search session is to be determined. Proceed to step S62.

(Step S62) 2nd time
The content search unit 62 performs a search with the search query Q5 = “broadband”, and acquires the content set C5 as a search result. The content set C5 is stored in the first content set storage unit 63. Proceed to step S63.

(Step S63) 2nd time
Search query Q1 = "Security", Search query Q2 = "Security &vulnerability", Search query Q3 = "Vulnerability &diagnosis", Search query Q4 = "Security &distribution" Is searched in the content search unit 62, the first search query Q1 = content set C1 as the search result of “security”, the second search query Q2 = content set C2 as the search result of “security & vulnerability” The third search query Q3 = content search C3 as the search result of “vulnerability & diagnosis”, and the fourth search query Q3 = content search C4 as the search result of “security & distribution”. The acquired content sets C1, C2, C3, and C4 are sent to the content set combining unit 65. Proceed to step S64.

(Step S64) 2nd time
The content set combining unit 65 combines the content sets using the content set Ci (1 ≦ i ≦ 4). Various methods are conceivable as a synthesis method. Here, as an example, a sum set of Ci (1 ≦ i ≦ 4) is calculated to obtain a combined content set D [C1, C2, C3, C4]. FIG. 13B shows a Venn diagram that describes the relationship between the content sets C1, C2, C3, and C4 and the combined content set D [C1, C2, C3, C4]. In the Venn diagram shown in FIG. 13B, the content set 111 of the content set C1, the content set 112 of the content set C2, the content set 113 of the content set C3, the content set 115 of the content set C4, and the content sets C1, C2, and C3 , A content set 116 which is a content set D [C1, C2, C3, C4] synthesized as a union of C4 is illustrated. The content set D [C1, C2, C3, C4] is stored in the second content set storage unit 66, and the process proceeds to step S65.

(Step S65) 2nd time
The search session determination unit 67 compares the content set C5 stored in the first content set storage unit 63 with the content set D [C1, C2, C3, C4] stored in the second content set storage unit 66. .

  In the Venn diagram of FIG. 13B, the content set 117 of the content set C5 is also illustrated, and the relationship between the content set C5 and the content set D [C1, C2, C3, C4] is described. Here, various methods can be considered as a comparison method. Here, as an example, the number of contents included in the product set C5∩D [C1, C2, C3, C4] of the first content set and the second content set | Using C5∩D [C1, C2, C3, C4] | and the number of contents | C5 | contained in the first content set C5, the evaluation value E = | C5∩D [C1, C2, C3, C4] | / | C5 | is calculated.

  FIG. 14 (b) shows content sets C1, C2, C3, C4, C5, D [C1, C2, C3, C4] (= C1∪C2∪C3∪C4), C5∩D [C1, C2, C3, C4] indicates the number of contents. When the number of contents included in each content set is FIG. 14B, the evaluation value E is 114/950 = 0.12. Proceed to step S66.

(Step S66) 2nd time
The search session determination unit 67 determines whether the search sessions are the same using the evaluation value E = 0.12 calculated in step S65. Since the threshold value α of the evaluation value E = 0.4, the evaluation value E = 0.12 <the threshold value α = 0.4, and it is determined that the search session is different. Referring to the Venn diagram in FIG. 13 (b), the content set C5 and the content set D [C1, C2, C3, C4] do not overlap so much, so the meaning of the search query Q5 It can be determined that the contents of the search queries Q1, Q2, Q3, and Q4 are different, and it is appropriate to determine that the search query Q5 = “broadband” is a separate search session from when the search queries Q1, Q2, and Q3 are entered. It is.

  Since it is determined that the search session is different, the process proceeds to step S67.

(Step S67)
The search query Qi (1 ≦ i ≦ 4) stored in the search query history storage unit 64 is extracted as an active session and sent to the operation history totaling unit 1.

  The process in the active session extraction unit 6 is terminated, and the process proceeds to the process in the operation history storage unit 1.

As described above, in the active session extraction process according to the present embodiment, it is possible to determine whether the user is continuing the search for the same search purpose based on the meaning of the search query. As a result, when the user changes the search purpose and starts searching again, it is possible to correctly extract the active session, and it is possible to more accurately carry out the determination of whether the search is good or bad, which is the object of the present invention. It becomes.
[Fourth embodiment]
FIG. 15 is a configuration diagram showing the configuration of the fourth exemplary embodiment of the present invention.

In the information presentation device according to the present embodiment, a content storage unit 1201 that stores content information to be presented in the content list generation unit 3 in the configuration of the information presentation device according to the first embodiment shown in FIG. A condition instruction unit 1202 that determines a search query, that is, a condition for selecting content, and a content list generation component that generates a content list from contents stored in the content storage unit 1201 in accordance with the search query determined by the condition instruction unit 1202 1203, a presentation history management unit 1205 that manages the content list generated by the content list generation configuration unit 1203 and the information presentation history in the content providing unit 4, and a correction sorting control unit 1206 that controls whether the correction sorting unit 34 can operate. Have.
The content list generation / configuration unit 1203 finds that the search query determined by the condition instruction unit 1202 is a search query that has been presented in the past, and the corresponding search query is not found by the condition matching unit 12031 In this case, the content selection unit 12032 that selects content that matches the search query from the content stored in the content storage unit 1201 and the content selected by the content selection unit 12032 are sorted in popularity order, price order, dictionary order, etc. The sorting order determined by the base sorting unit 12033 is corrected with reference to the presentation status of each content stored in the base sorting unit 12033 and the presentation history management unit 1205, and the content not presented to the user is preferentially presented. And a correction sorting unit 12034 for correcting sorting as described above.

  The presentation history management unit 1205 stores the content list generated by the content list generation configuration unit 1203 together with the search query, and further stores the content list presentation state and the user browsing history in the content providing unit 4 as presentation history information. A presentation history storage unit 12051, a condition-designated presentation history extraction unit 12052 for extracting a content set with a presentation order from the presentation history information stored in the presentation history storage unit 12051 as a key, and a presentation history storage unit 12051 Using the content as the key from the information stored in the, information such as what search query the content was sorted in what number, whether it was presented to the user in the content providing unit 4, and whether the user selected A content designation / presentation history extraction unit 12053 to be extracted.

  FIG. 16 is a flowchart showing the operation of the content list generation unit 3 in the fourth embodiment of the present invention.

  The operation of the content list generation unit 3 in the fourth embodiment of the present invention will be described using FIG.

(Step S101)
A search query is set in the condition instruction unit 1202. The search query set in the condition instruction unit 1202 has the same content as the search query stored in the operation history storage unit 5. The search query can be set by a method in which a user sets a search keyword or a method in which the system automatically sets using various recommendation engines such as collaborative filtering. However, any setting method may be used. After setting, the process proceeds to step S102.

(Step S102)
The condition collating unit 12031 collates whether or not the search query set by the condition instructing unit 1202 has been used in the past. The collation is performed via the condition designation presentation history extraction unit 12052. The condition designation presentation history extraction unit 12052 extracts a history related to the search query from the presentation history stored in the presentation history storage unit 12051. The range of the history to be verified is assumed to be within the same session, within a fixed time such as within 24 hours, unlimited, etc., and the user is basically assumed to target the history of the same user. However, the range of the history to be verified is set by the service. When the history is found in the condition designation presentation history extraction unit 12052, the search query and the content with the presentation order are sent from the condition designation presentation history extraction unit 12052 to the condition matching unit 12031.
Then, the process proceeds to step S108.

  If no history is found in the condition designation presentation history extraction unit 12052, information indicating that no empty set is found is sent from the condition designation presentation history extraction unit 12052 to the condition matching unit 12031, for example.

  Then, the process proceeds to step S103.

(Step S103)
When the condition matching unit 12031 determines that the search query set in the condition instruction unit 1202 has not been used in the past, the content selection unit 12032 uses the condition instruction unit 1202 to select from the contents stored in the content storage unit 1201. Select content that matches the configured search query. The selected content is sent to the base sorting unit 12033.

  Proceed to step S104.

(Step S104)
The base sorting unit 12033 sorts the content selected by the content selection unit 12032 using a sorting method (called a base sorting method) such as a predetermined popularity order, price order, dictionary order, or the like. In the present invention, the sorting method used in the base sorting unit 12033 does not affect the effect of the present invention, and any of them may be used.
Proceed to step S112.

(Step S112)
In step S112, it is determined whether or not correction sorting is performed according to the correction sorting control unit 1206.

  In the information presentation apparatus according to the fourth embodiment, when the search favorable / unfavorable determination unit 2 determines that the series of search operations by the user is abnormal, the correction sorting control unit 1206 determines to perform correction sorting. On the other hand, when the search favorable / unfavorable determination unit 2 determines that the user's series of search operations is favorable, that is, it is not abnormal, the correction sorting control unit 1206 does not perform the correction sorting, and performs the base sorting unit 12033. The content list is determined to be presented by a general content sorting method.

  If the correction sorting control unit 1206 determines to perform correction sorting, the process proceeds to step S105.

  If the correction sorting control unit 1206 determines not to perform correction sorting, the process proceeds to step S108.

(Step S105)
The correction sorting unit 12034 obtains a presentation history for each content sent from the base sorting unit 12033. Content presentation history acquisition is performed via the content designation presentation history extraction unit 12053. The content designation presentation history extraction unit 12053 extracts the presentation history of each content from the presentation history stored in the presentation history storage unit 12051. The range of the target history is assumed to be within the same session, within a fixed time such as within 24 hours, unlimited, etc., and the user is basically assumed to target the history of the same user. However, the target history range is set by the service.

Proceed to step S106
(Step S106)
The correction sorting unit 12034 corrects the sorting order using the presentation history for the contents sorted by the base sorting unit 12033 with reference to the presentation history of each content acquired via the content designation presentation history extraction unit 12053. In the correction, priority is given to content that has not been presented to the user, and correction is made so that the content is placed at the top of the content list.

  Here, an example of a correction method in the correction sorting unit 12034 is shown. The correction sorting unit 12034 acquires a presentation history for each content to be presented via the content designation presentation history extraction unit 12053 of the presentation history management unit 1205. Then, the obtained presentation history is sorted in ascending order (in ascending order). The correction sorting unit 12033 sorts the content with the same number of presentation histories, for example, by sorting with a stable algorithm such as distribution counting sort, so that the order sorted by the base sorting unit 12033 is maintained.

  Note that this correction sorting method is an example, and another method may be used to prioritize content that has not been presented to the user and place it at the top of the content list.

  Proceed to step S107.

(Step S107)
The search query and the content set with the presentation order are stored in the presentation history storage unit 12051.
Proceed to step S108.

(Step S108)
The content providing unit 4 presents a content list. The list is generated according to the presentation order sorted by the correction sorting unit 12034 or the presentation order sent from the condition matching unit 12031 and presented to the user. The content presented to the user on the content list page is recorded in the presentation history in the presentation history storage unit 12051. If the content does not fit on one page due to the content presentation area, the content list page is divided into a plurality of pages. When the content list page is divided into a plurality of pages, it is desirable to record that only the content included in the actually presented content list page has been presented.
Proceed to step S109.

(Step S109)
When a page turning operation such as next page presentation / all page presentation occurs when content selection or content list pages are divided into a plurality of pages, the content providing unit 4 performs processing according to the user's interaction.
Proceed to step S110.

(Step S110)
The contents of the interaction performed in step S109 are recorded in the presentation history storage unit 12051 and the operation history storage unit 5. For example, when a page turning operation occurs as an interaction from the user, the content providing unit 4 updates the content list page and displays information indicating that the content is presented to the presentation history storage unit 12051 and the operation history storage unit 5. Record. As another example, when the user selects the detailed information presentation of content from the content included in the content list page, the content is presented to the presentation history storage unit 12051 and the operation history storage unit 5 in detail. Record the information to the effect.

(Step S111)
If the user changes the search query to change the way of searching for content, the process proceeds to step S101. Otherwise, the process proceeds to S108.

  In the information presentation apparatus according to the present embodiment, when the search favorable / unfavorable determination unit 2 determines that the user cannot find the content well and the search behavior is unsatisfactory, the content not yet presented to the user is preferentially displayed. In other words, when it is determined that the search is not successful, the content presented in another search query based on the content presentation history is lowered in priority at the time of sorting and the priority of unpresented content is increased. indicate. By adopting this mechanism, when the user cannot find the desired content even if he / she looks at the content list, the undisplayed content is displayed preferentially, which makes it easier to find the desired content. is there. Furthermore, from the viewpoint of the service provider, more content can be presented to the user, so that not only the best selling content but also so-called long tail products can be introduced to the user, and the number of content users of the entire service can be increased. A secondary effect of increasing can be expected.

  FIG. 17 is a diagram showing an example of content information stored in the content storage unit 1201. As shown in FIG. FIG. 17 shows an example in which content data 120100 in which video content is content to be presented is stored in the content storage unit 1201. The content data 120100 stores attribute values such as content ID, title, genre, recommendation level, and popularity level for each content. Note that the content data 120100 is an example of content information stored in the content storage unit 1201, and the storage form may be any form as long as content search is possible.

  FIG. 18 is a diagram showing an example of presentation history information stored in the presentation history storage unit 12051. FIG. 18 is an example in which the presentation history information 120101 when the user browses the content data 120100 shown in FIG. 17 is stored. In the example of FIG. 18, the presentation history information 120101 includes a search query-content list correspondence table 1201011 and a content-history correspondence table 1201012. The search query-content list correspondence table 1201011 stores a search query for each user and a content list in the search query. The content-history correspondence table 1201012 stores the number of presentations of each content and the number of times of browsing detailed information for each user. Note that the browsing history information 120101 shown in FIG. 18 is an example in the embodiment of the present invention, the content list generated by the content list generation configuration unit 1203 is stored together with the search query, and the content list presentation state in the content providing unit 4 and Any form may be used as long as the user's browsing history can be stored.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.
Here, the content data 120100 is stored in the content storage unit 1201, the presentation history information 120101 is stored in the presentation history storage unit 12051, and the user USER-01 uses the information presentation device. Will be described.

(Step S101)
Assume that the search query “genre = animation” is set in the condition instruction unit 1202.
Proceed to step S102.

(Step S102)
The condition collating unit 12031 collates whether the search query “genre = animation” set in the condition instructing unit 1202 has been used in the past. The collation is performed via the condition designation presentation history extraction unit 12052. The condition designation presentation history extraction unit 12052 refers to the search query-content list correspondence table 1201011 in the presentation history information 120101 stored in the presentation history storage unit 12051, and uses the search query “genre = The contents list (in order of presentation) “CONT-01, CONT-02, CONT-03” is sent to the condition matching unit 12031.

Proceed to step S108
(Step S108)
The content providing unit 4 presents a content list. The list is generated according to the order sent from the condition matching unit 12031.

  FIG. 19 shows a display example of a content list 120120. In addition, the fact that the contents CONT-01, CONT-02, and CONT-03 are presented is recorded in the presentation history of the presentation history storage unit 12051.

  FIG. 20 shows the presentation history information 120102 stored in the presentation history storage unit 12051 after recording.

(Step S101 2nd time)
Assume that the user changes the search query to “popularity = A” in the condition instruction unit 1202.

  Step S102 Proceed to the second time.

(Step S102 2nd time)
The condition collating unit 12031 collates whether the search query “popularity = A” set by the condition instructing unit 1202 has been used in the past. The collation is performed via the condition designation presentation history extraction unit 12052. The condition-designated presentation history extraction unit 12052 refers to the search query-content list correspondence table 1201011 in the presentation history information 120101 stored in the presentation history storage unit 12051, and displays the search query “popularity = Confirm that there is no “A”. Then, the condition designation presentation history extraction unit 12052 sends an empty set indicating that no search query was found to the condition matching unit 12031.

Proceed to step S103
(Step S103)
The content selection unit 12032 selects the content of “popularity = A” from the content information 120100 stored in the content storage unit 1201. In this case, the contents CONT-01, CONT-04, CONT-07, CONT-10, and CONT-12 are selected, and the selected contents are sent to the base sorting unit 12033.

  Proceed to step S104.

(Step S104)
In the base sorting unit 12033, it is assumed that the base sorting method is defined as sorting in the dictionary order of titles. In this case, the contents are CONT-01 (title = Alps girl), CONT-07 (title = Gots), CONT-10 (title = football legs vs cherry blossoms), CONT-11 (professional baseball digest), CONT-04 ( Sorted in the order of demons. Information on the sorted contents is sent to the correction sorting unit 12034.
Proceed to step S105.

(Step S112)
In step S112, it is determined whether or not correction sorting is performed according to the correction sorting control unit 1206.

  In the present embodiment, it is assumed that the search favorable / unfavorable determination unit 2 determines that a series of search behaviors of the user is abnormal.

  In this case, the correction sorting control unit 1206 determines to perform correction sorting.

  If the correction sorting control unit 1206 determines to perform correction sorting, the process proceeds to step S105.

(Step S105)
In the correction sorting unit 12034, each content (CONT-01, CONT-07, CONT-10, CONT-11, CONT-04) sent from the base sorting unit 12033 is passed through the content designation presentation history extraction unit 12053. Get presentation history. In this case, the content designation presentation history extraction unit 12053 refers to the content-history correspondence table 1201022 of the presentation history information 120102, CONT-01 is presented twice, browsing history is once, and CONT-04 is presented zero times. Get presentation history such as browsing history 0 times.
Proceed to step S106.

(Step S106)
The correction sorting unit 12034 corrects the sorting order using the presentation history for the contents sorted by the base sorting unit 12033 with reference to the presentation history of each content acquired via the content designation presentation history extraction unit 12053. In the correction, priority is given to content that has not been presented to the user, and correction is made so that the content is placed at the top of the content list.

  Here, an example of a correction method in the correction sorting unit 12034 is shown. The correction sorting unit 12034 acquires the presentation history of USER-01 for each content to be presented via the content designation presentation history extraction unit 12053 of the presentation history management unit 1205. Here, CONT-01 = 2 presentation times, CONT-07 = 0 presentation times, CONT-10 = 0 presentation times, CONT-11 = 0 presentation times, CONT-04 = 0 presentation times . Then, the obtained presentation history is sorted in ascending order (in ascending order), the presentation order of CONT-01 with two presentations is lowered, CONT-07, CONT-10, CONT-11, CONT-04, CONT- Rearrange 01.

  Note that this correction sorting method is an example, and another method may be used to prioritize content that has not been presented to the user and place it at the top of the content list.

  Proceed to step S107.

(Step S107)
The result of sorting by the correction sorting unit 12034 is stored in the presentation history storage unit 12051.

FIG. 21 shows browsing history information 120103 stored in the presentation history storage unit 12051.
Step S108 Proceed to the second time.

(Step S108 2nd time)
The content providing unit 4 presents a content list. The list is generated according to the order sent from the correction sorting unit 12034. In addition, the fact that the contents CONT-07, CONT-10, CONT-11, CONT-04, and CONT-01 are presented is recorded in the presentation history of the presentation history storage unit 12051.

FIG. 22 shows a display example of a content list 120111. On screen 120111, a content list is generated so that CONT-01 that has been presented to user USER-01 in the past is presented at the bottom of the list.
(Another configuration example according to the fourth embodiment of the present invention)
In this configuration example, a variation of the information presentation apparatus according to the fourth embodiment will be described.

  In the fourth embodiment of the present invention, several configuration variations can be considered in the content sorting method in the content list generation configuration unit 1203. For example, as a variation of one configuration, a configuration in which the content list generation configuration unit 1203 does not include the base sorting unit 12033 is also conceivable. FIG. 23 shows a configuration diagram in which the base sorting unit 12033 is not provided. In the configuration of FIG. 23, the content selected by the content selection unit 12032 is directly sent to the correction sorting unit 12034, and the content is sorted by the correction sorting unit 12034. Since the correction sorting unit 12034 has the function of sorting contents based on the content presentation history, which is a feature of the present invention, the same function can be provided in the configuration of FIG.

  In another variation, in the fourth embodiment of the present invention, as the presentation history managed by the presentation history management unit 1205, the last presentation date and time of each content is recorded together, and the content is corrected by the correction sorting unit 12034. When sorting the contents, it may be considered that the content with the latest final presentation date is less likely to be presented, and the content with the oldest final presentation date is more easily presented compared to the content with the new final presentation date. By taking such a form, it becomes possible to present in order from the content with the lightest memory of the user in the next priority of the content that the user does not know at all.

  In another variation, in the fourth embodiment of the present invention, as the presentation history managed by the presentation history management unit 1205, the importance of each content for each user is recorded together, and the correction sorting unit When sorting the content in 12034, it is also possible that the content having a high importance level is easier to be presented than the content having a low importance level. For example, when corrective sorting is performed, each content is scored in proportion to the presentation history, and sorting is performed in the ascending order of the content score. This variation is realized by providing a mechanism that reduces the content according to the importance of the content. However, the method of reflecting the importance of content described here is an example, and other reflection methods may be used. The content importance input methods include a method in which the user explicitly inputs, a method in which the user's access history and preference information are automatically generated, and a method in which the importance of purchased content is extremely reduced. However, it may be any including other methods.

  In another variation, in the fourth embodiment of the present invention, the correction sorting unit 12034 gives priority to content that has not been presented to the user and corrects the content so that it is placed at the top of the content list. A configuration may be considered in which content that has been presented to the user is deleted from the content list. In general, since the amount of calculation is smaller when the content is deleted than when the content is sorted, this variation is particularly effective when the information presentation apparatus of the present invention is applied to a large-scale service.

  Next, another variation of the information presentation apparatus according to the fourth embodiment will be described.

  FIG. 24 is a configuration diagram of this example.

  The information presentation device according to this example is characterized in that the presentation history management unit 1205 includes a presentation history correction unit 12054 that corrects the presentation history information stored in the presentation history storage unit 12051.

  Next, features of the information presentation apparatus having the configuration of this example by including the presentation history correction unit 12054 will be described.

(Configuration example 1)
The presentation history correction unit 12054 deletes the presentation history stored in the presentation history storage unit 12051 that has passed a certain period since it was last used. By providing the presentation history correction unit 12054, once presented content can be presented to the user again after a certain period (history deletion period). That is, even if the content has been presented once but not selected by the user, the opportunity to be presented again to the user is given after the history deletion period.

  Although various patterns can be considered for the history deletion period depending on the application service, the length of the period is not particularly limited in the implementation of the present invention. For example, it is usually possible to set it to 1 day (24 hours) to 1 week, but if the service provider wants to introduce as much content as possible to the user, the history deletion period can be set to 1 week or 1 It is also possible to set a long period such as a month. Note that this history deletion period can be set according to the method of setting all the history deletion periods, the method of setting the history deletion period for each content, the method of changing the history deletion period according to the season, or the number of days from the content registration date. Various methods such as a method of changing the deletion period are conceivable.

(Configuration example 2)
The presentation history correction unit 12054 deletes the presentation history related to specific content from the presentation history stored in the presentation history storage unit 12051 with a special intention of the service provider.

  By providing the presentation history correction unit 12054, it is possible to easily present the content that the service provider wants to strongly recommend to the user even after it has been presented once.

  Since the presentation history related to the specific content can be deleted by the presentation history correction unit 12054, the following service operation can be performed.

  For example, in the portal site on the Internet, the service provider that operates the portal is different from the content provider that manages the content provided on the portal, and the service provider takes the content from multiple content providers to the portal. There is a case of building a site. From the viewpoint of content providers, in order to improve the sales of the content to be provided, it would be a good idea to present it to the user as much as possible. Based on this, by receiving additional costs from content providers who want to expose as much of the content as possible, the service provider explicitly deletes the presentation history for the content owned by the content provider, and the content provider Make it easier to present content. Various methods such as a method of deleting all of the presentation histories at once and a method of deleting the presentation history in a period shorter than a normal deletion period can be considered.

  The service operation described above is one example of the present embodiment, and the present invention is not limited to this example.

(Configuration example 3)
The presentation history correction unit 12054 deletes the presentation history related to a specific search query from the presentation histories stored in the presentation history storage unit 12051 with a special intention of the service provider. Alternatively, the presentation history correction unit 12054 explicitly describes the presentation history intended by the service provider for a specific search query. For example, in a portal site on the Internet, there are cases where a service provider operating a portal arbitrarily controls the order of content presentation when searching for content using a certain search keyword. In such a case, by providing the presentation history correcting unit 12054, the presentation history of the search query is unconditionally deleted so as to be in the content presentation order intended by the service provider, so that the service provider in the order intended. A content list can be presented.

(Configuration example 4)
The presentation history correction unit 12054 deletes the presentation history stored in the presentation history storage unit 12051 according to the size of the presentation history stored in the presentation history storage unit 12051.

  For example, when the size of the presentation history stored in the presentation history storage unit 12051 exceeds a set threshold, the information presentation device makes a determination and deletes the presentation history. As for the threshold value, a case where the threshold value is set for the entire information presentation apparatus, a case where the threshold value is set for each user, and the like can be considered, but any other method may be used. In addition, as a method for determining the presentation history to be deleted, a method of deleting from an old presentation history, a method of deleting from a presentation history with low importance, and the like can be considered, but any method including other methods may be used.

(Configuration example 5)
In the portal site on the Internet, the service provider who manages the portal etc. is different from the content provider who manages the content provided on the portal, and the service provider takes the content from multiple content providers and portal Explain the case of building a site.

  The service provider usually collects the value from the content provider by presenting the content owned by the content provider to the user, or collects the value from the content provider or the user when the user uses the content. To make a profit.

  In the information presentation apparatus according to the present example, when the service provider collects additional consideration from the content provider who desires to present more content to the user, the service provider can provide the content provider via the presentation history correction unit 12054. The presentation history stored in the presentation history storage unit 12051 related to the owned content is deleted. Thereby, it becomes possible to make it easier for the user to present the content of the content provider who has collected additional consideration.

(Configuration example 6)
In the portal site on the Internet, the service provider who manages the portal etc. is different from the content provider who manages the content provided on the portal, and the service provider takes the content from multiple content providers and portal Explain the case of building a site. The content provider pays the service provider when the content entrusted to the service provider is presented to the user, or pays the service provider when the user uses the content. , It is possible to provide the user with owned content. In the information presentation apparatus according to the present embodiment, when the content provider wants to present more content to the user, the content provider pays an additional consideration to the service provider, and the content is provided via the presentation history correction unit 12054. The presentation history stored in the presentation history storage unit 12051 related to the content owned by the provider is deleted. Thereby, it becomes possible to make it easy to present the owned content to the user by paying an additional consideration. Note that the subject that instructs the presentation history correction unit 12054 to delete the history may be either a service provider or a content provider.

The first to fourth embodiments described above are the flowcharts shown in FIGS. 2, 6, 7, 9, 11, 16, etc. on the computer, and programs for implementing the above-described operations. It can also be realized by executing. In this case, all or some of the functions of the operation history totaling unit 1, the search favorable / unfavorable determination unit 2, the content list generating unit 3, the content providing unit 4, and the operation history storage unit 5 are executed on the computer. When the information presentation device of each embodiment is configured as a client-server type, the operation history totaling unit 1, the search favorable / unfavorable determination unit 2, the content list generating unit 3, the content providing unit 4, the operation are included in the client and the server. The history storage unit 5 is arbitrarily divided and arranged.
FIG. 25 is a block diagram illustrating a configuration example of a computer constituting the information presentation apparatus of each embodiment.
A program that describes all or part of the functions of the operation history totaling unit 1, the search favorable / bad determination unit 2, the content list generating unit 3, the content providing unit 4, and the operation history storage unit 5 is stored in a disk device 206 such as a hard disk device or a ROM. And the like, and the operation history is stored in a storage device such as the disk device 206 or ROM. The CPU 204 executes a program that realizes all or part of the functions of the operation history totaling unit 1, the search favorable / unfavorable determination unit 2, the content list generating unit 3, the content providing unit 4, and the operation history storage unit 5. The input device 201 corresponds to user operation input means and serves as an input device such as a keyboard. A display device 202 such as an LCD corresponds to a content list presentation unit. Reference numeral 203 denotes a bus such as a data bus, and 205 denotes information necessary for information processing of the CPU 204, that is, a memory such as a DRAM that stores the total data of the operation history totaling unit and the content list data.

  The present invention can be applied to applications such as an information search device that searches data stored in a database and an information recommendation device that recommends suitable information from data stored in a database. The target data is not limited to the restaurant information used in the description of the embodiment, but video content such as TV programs, commercials, and movies, text information content such as patent documents and papers, and office business applications. Any application can be applied as long as the application information is stored in a database and a content list is presented to the user.

It is a block diagram which shows the structure of 1st embodiment of the information presentation apparatus concerning this invention. It is a flowchart which shows operation | movement of the information provision apparatus of 1st embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 1st embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 1st embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 1st embodiment of this invention. It is a flowchart which shows the operation | movement for implementing the information provision apparatus of 1st embodiment of this invention. It is a flowchart which shows the operation | movement for implementing the information provision apparatus of 1st embodiment of this invention. It is a block diagram which shows the structure for implementing the information provision apparatus of 2nd embodiment of this invention. It is a flowchart which shows the operation | movement for implementing the information provision apparatus of 2nd embodiment of this invention. It is a block diagram which shows the structure for implementing the information provision apparatus of 3rd embodiment of this invention. It is a flowchart which shows the operation | movement for implementing the information provision apparatus of 3rd embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 3rd embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 3rd embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 3rd embodiment of this invention. It is a block diagram which shows the structure for implementing the information provision apparatus of 4th embodiment of this invention. It is a flowchart which shows the operation | movement for implementing the information provision apparatus of 4th embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 4th embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 4th embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 4th embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 4th embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 4th embodiment of this invention. It is a figure for demonstrating the information provision apparatus of 4th embodiment of this invention. It is a block diagram which shows the structure for implementing the information provision apparatus of 4th embodiment of this invention. It is a block diagram which shows the structure for implementing the information provision apparatus of 4th embodiment of this invention. It is a block diagram which shows one structural example of the computer which comprises the information presentation apparatus of each embodiment.

Explanation of symbols

1 Operation history tabulation section
11 Operation count total
12 Content usage count section
13 Search count total
2 Search good / bad judgment section
3 Content list generator
4 Content provision department
41 User operation input section
42 Content List Presentation Unit
5 Operation history storage
6 Active session extractor
61 Search query storage
62 Content Search Department
63 First content storage unit
64 Search query history storage
65 Content set composition unit
66 Second content set storage
67 Search session determination section
1201 Content storage unit
1202 Condition indicating unit
1203 Content list generation component
12031 Condition checking part
12032 content selection unit
12033 Base sorting section
12034 Correction sorting unit
1205 Presentation information management unit
12051 Presentation history storage unit
12052 Condition designation presentation history extraction unit
12053 Content designation presentation history extraction unit
12054 Presentation history correction unit
1206 Correction Sorting Control Unit

Claims (25)

  A search favorable / unfavorable determination unit that determines a degree of favorable / unfavorableness of a series of search actions of the user based on a user's operation history, and a content list generation unit that generates a content list based on the determination result Information presentation device. At least one of operation count totaling means for storing the user's operation count, content usage count totaling means for storing the user's content usage count, and search frequency count counting means for storing the search count when the user has entered the search query;
A search favorable / unfavorable determination unit that determines the degree of unfavorableness of the user's search behavior using at least one of the stored user operation count, content usage count, and search count, and a content list based on the determination result And a content list generating means for generating the information.   Content list presenting means for presenting a content list to a user, and the degree of favorable / unfavorableness of the series of search behaviors of the user based on the user operation history after the content list is presented by the content list presenting means An information presentation apparatus characterized by comprising a search favorable / unfavorable means. An operation history totaling unit that totals the user's operation history, a search favorable / unfavorable determination unit that determines a degree of unfavorableness of the user's search behavior from the user's operation history totaled by the operation history totaling unit, and the search favorable / unfavorable determination Content list generating means for generating a content list to be presented to the user according to the degree of unfavorability determined by the means, and content providing means for presenting the content list generated by the content list generating means to the user and receiving operation input from the user And operation history storage means for storing user operations input to the content providing means,
The search operation history aggregating unit stores an operation frequency aggregating unit that stores the number of operations of the user on the information presentation device, a content usage number aggregating unit that stores the content usage number of the user, and a number of times the user inputs a search query. And at least one of the search frequency counting means to perform,
The content providing means includes user operation input means for receiving an operation input from a user, and content list presenting means for presenting a content list generated by the content list generating means to the user. .   After the content list is presented by the content list presenting means, the operation history of the operation by the user operation input means is stored in the operation history storage means, and the operation history is summed by the operation history summing means. 5. The information presentation according to claim 4, wherein whether or not the content presented in the content list presenting means is suitable for a user is determined by performing a search favorable / unfavorable determination in the search favorable / unfavorable means according to the content. apparatus.   The active session extracting means for extracting a user operation sequence to be used for determining whether or not a search is favorable from a plurality of search operation histories of the user stored in the operation history storage means. 4. The information presentation device according to 4 or 5.   The active session extraction unit includes a search query storage unit that sequentially stores search queries stored in the operation history storage unit, a content search unit that searches for content according to the search query, and the search query storage unit A first content set storage means for holding a content set searched by the content search means using a search query stored in a search query history storage means for storing a search query stored in the past in the search query storage means; , Content set synthesizing means for synthesizing a content set using a plurality of content sets searched by the content search means using a plurality of search queries stored in the search query history storage means, and generated by the content set synthesizing means Second content set that holds the selected content set The search query stored in the search query storage unit by comparing the storage unit, the content set of the first content set storage unit and the content set of the second content set storage unit is stored in the search query history storage unit The information presentation apparatus according to claim 6, further comprising: a search session determination unit that determines whether or not the query belongs to the same search session as a past query. The content list generation means is stored in the content storage means in accordance with a content storage means for storing content information to be presented, a condition instruction means for determining a search query, and a search query determined by the condition instruction means Content list generation / configuration means for generating a content list from content; and a presentation history management means for managing a content list generated by the content list generation / configuration means and an information presentation history at the content providing means. ,
The content list generation and configuration means includes: a condition matching means for checking whether or not the search query determined by the condition instruction means is a search query presented in the past; and when the corresponding search query is not found by the condition matching means In addition, content selection means for selecting content that matches a search query from the contents stored in the content storage means, and base sorting for sorting the content selected by the content selection means in popularity order, price order, dictionary order, etc. The sorting order determined by the base sorting means with reference to the means and the presentation status of each content stored in the presentation history management means, so that the contents not presented to the user are preferentially presented. Correction sorting means for correcting
The content list generation means further includes correction sorting control means for controlling whether or not the correction sorting means can operate.
The presentation history management means stores the content list generated by the content list generation and configuration means together with the search query, and further stores the content list presentation status and the user browsing history in the content providing means as presentation history information. A history storage means, a condition-designated presentation history extraction means for extracting a content set with a presentation order from the presentation history information stored in the presentation history storage means as a key, and stored in the presentation history storage means Content from which the information including at least one of the search query with which content is sorted by what search query, presented to the user by the content providing means, or selected by the user from the information as a key 5. A specified presentation history extracting means, 8. The information presentation device according to any one of claims 7 to 7.   9. The information presentation apparatus according to claim 8, wherein the presentation history management means includes presentation history correction means for correcting the presentation history information stored in the presentation history storage means.   At least one of the user's number of operations with respect to the information presentation device, the user's content usage number, and the number of times the user inputs a search query is tabulated by a tabulation unit, and at least one of these is used to improve the user's search behavior. An information presentation method for determining a degree of malfunction and generating a content list based on a determination result.   With the operation history of the user as an input, in the operation history totaling means, the number of operations for the user's information presentation device that has been totaled by the operation count totaling means, the number of user content usages that have been totaled by the content usage number totaling means, and the search frequency totaling means At least one of the number of times that the user has entered the search query is sent to the search favorable / unfavorable determination means, and the degree of favorable / unfavorableness of the user's search behavior is searched from the user's operation history calculated by the operation history totaling means. An information presentation method comprising: determining by a malfunction determination unit; and generating a content list by a content list generation unit based on a determination result.   Based on the operation history of the user after the content list is presented by the content list presenting means and the content list is presented, the degree of favorableness of the series of search actions of the user is determined by the search favorable / unfavorable means determining means. An information presentation method characterized by:   With the operation history of the user as an input, in the operation history totaling means, the number of operations for the user's information presentation device that has been totaled by the operation count totaling means, the number of user content usages that have been totaled by the content usage number totaling means, and the search frequency totaling means At least one of the number of times that the user has entered the search query is sent to the search favorable / unfavorable determination means, and the degree of favorable / unfavorableness of the user's search behavior is searched from the user's operation history calculated by the operation history totaling means. The content list generated by the content list generation unit is generated by the content list generation unit, and the content list generated by the content list generation unit is generated by the content list generation unit according to the degree of badness determined by the poor / good determination unit. And receiving the operation input from the user, the content A method for presenting information, characterized in that an operation history storage means stores a user operation input to a providing means.   After presenting the content in the content providing means, the operation history in the operation history storage means is totaled in the operation history totaling means, and the search favorable / unfavorable judgment means is performed in the search favorable / unfavorable judgment means according to the total content. 14. The information presentation method according to claim 13, wherein it is determined whether or not the content presented by the content providing means is suitable for a user.   The active session extraction unit extracts a user operation sequence to be used for a determination of a favorable / unfavorable search from a plurality of search operation history of the user stored in the operation history storage unit. Or the information presentation method of 14.   In the active session extraction unit, the search queries stored in the operation history storage unit by the search query storage unit are stored in order from the latest one, and the search stored in the search query storage unit by the first content set storage unit A content set searched by the content search means using a query is stored, a search query stored in the search query storage means is stored in a search query history storage means, and the search query history is stored in a content set synthesis means Using the plurality of search queries stored in the storage unit, the content set is synthesized using the plurality of content sets searched by the content search unit, and generated by the content set synthesis unit in the second content set storage unit In the search session determination means, The search query stored in the search query storage unit is stored in the search query history storage unit by comparing the content set stored in the one content set storage unit with the content set stored in the second content set storage unit 16. The information presentation method according to claim 15, wherein it is determined whether or not the query belongs to the same search session as a past query.   17. The content list according to claim 11, wherein a list of contents sorted according to a result of processing by the search favorable / unfavorable determination means is given with priority given to contents not yet presented. Information presentation method of description. At least one of processing that counts the number of operations performed on the user's information presentation device, processing that counts the number of usages of the user, and processing that counts the number of times the user has entered a search query;
A process for determining the degree of progress such as the degree of unfavorableness of the search behavior of the user using the at least one process;
A program for presenting information, characterized by causing a computer to execute processing for generating a content list by content list generation means based on a determination result. With the operation history of the user as an input, in the operation history totaling means, the number of operations for the user's information presentation device that has been totaled by the operation count totaling means, the number of user content usages that have been totaled by the content usage number totaling means, and the search frequency totaling means At least one of the number of times that the user has entered the search query is sent to the search favorable / unfavorable judgment means, and the degree of favorable / unfavorableness of the user's search behavior is retrieved from the user's operation history calculated by the operation history aggregate means. A process for judging by the malfunction judgment means;
A program for presenting information, characterized by causing a computer to execute processing for generating a content list by content list generation means based on a determination result. Processing for presenting a content list by means of content list presentation;
Causing the computer to execute a process of determining the degree of favorable / unfavorableness of the series of search behaviors of the user based on the user's operation history after the presentation of the content list by the search favorable / unfavorable determination means. Characteristic information presentation program. With the operation history of the user as an input, in the operation history totaling means, the number of operations for the user's information presentation device that has been totaled by the operation count totaling means, the number of user content usages that have been totaled by the content usage number totaling means, At least one of the number of times that the user has entered the search query is sent to the search favorable / unfavorable judgment means, and the degree of favorable / unfavorableness of the user's search behavior is retrieved from the user's operation history calculated by the operation history aggregate means. A process for judging by the malfunction judgment means;
A process for generating a content list to be presented to the user in the content list generating means according to the degree of unfavorability determined by the search favorable / unfavorable means;
Processing for presenting a content list generated by the content list generation unit to the user in the content providing unit, receiving an operation input from the user, and storing the user operation input to the content providing unit in the operation history storage unit When,
A program for presenting information, characterized by causing a computer to execute.   After presenting the content in the content providing means, the operation history in the operation history storage means is totaled in the operation history totaling means, and the search favorable / unfavorable judgment means is performed in the search favorable / unfavorable judgment means according to the total content. The information presentation program according to claim 21, wherein the computer executes a process of determining whether or not the content presented by the content providing unit is suitable for a user.   In the active session extracting unit, the computer is caused to execute a process of extracting a user operation sequence to be used for the determination of the pros and cons of the search from the history of the plurality of search operations of the user stored in the operation history storage unit. 23. The information presentation program according to claim 21 or 22,   In the active session extraction unit, the search queries stored in the operation history storage unit by the search query storage unit are stored in order from the latest one, and the search stored in the search query storage unit by the first content set storage unit A content set searched by the content search means using a query is stored, a search query stored in the search query storage means is stored in a search query history storage means, and the search query history is stored in a content set synthesis means Using the plurality of search queries stored in the storage unit, the content set is synthesized using the plurality of content sets searched by the content search unit, and generated by the content set synthesis unit in the second content set storage unit In the search session determination means, The search query stored in the search query storage unit is stored in the search query history storage unit by comparing the content set stored in the one content set storage unit with the content set stored in the second content set storage unit 24. The information presentation program according to claim 23, further causing a computer to execute a process of determining whether or not the query belongs to the same search session as a past query.   25. The computer according to claim 20, further comprising a process of presenting a list of contents sorted by giving priority to contents not yet presented in response to a result of processing by the search favorable / unfavorable means. The information presentation program according to any one of the above.

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