JP5323156B2 - Apparatus, method, and program - Google Patents

Description

  The present invention relates to an apparatus, a method, and a program. In particular, the present invention relates to an apparatus, a method, and a program using a facet query.

  Conventionally, a keyword input from a user terminal, that is, a Web site corresponding to the search query is requested to search for the search query, and a Web page including a search result provided from the Web site is generated and provided to the user terminal. A search system has been proposed (for example, Patent Document 1). In the search system described in Patent Literature 1, when an input of a search query is received from a user terminal at a so-called portal site, a search is performed based on the search query. Then, a search request is issued to a website that is included in the search result and needs to be searched again using the search query, and a Web page including the search result provided from the website is generated. To the user terminal.

JP 2008-186252 A

  However, in the method described in Patent Document 1, a search related to the search query is requested to a Web site corresponding to the search query received on the portal site, and the search result is obtained and provided to the user terminal. That is, only a static service that presents a search result of a predetermined website for a predetermined search query can be performed.

  An object of the present invention is to provide an apparatus, a method, and a program that can dynamically define a service to be performed in response to a search query.

  The present invention provides the following solutions.

  (1) A facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query, and a topic word composed of a keyword different from the keyword in the last column A device that dynamically defines a service by a combination, and a facet word and a topic generated from a facet query included in a click log in which the search query is associated with a selection result for a search result according to the search query An apparatus comprising: correspondence list generating means for generating a word correspondence list; and selection receiving means for receiving selection of a combination composed of facet words and topic words included in the correspondence list.

  (2) The apparatus according to (1), further comprising a bid accepting unit that accepts a bid for a right to define a service induced by the accepted combination.

  (3) The bid accepting unit accepts a bid for the right to define a service provided at the destination site when the combination accepted by the selection accepting unit matches the correspondence list. Equipment.

  (4) The selection receiving unit generates a facet word list and a topic word list from the correspondence list, displays the facet word list and the topic word list on the user terminal, and receives a selection. (1) to (3) The apparatus of any one of these.

  (5) A topic composed of a facet word composed of the keywords in the last column of the facet query, which is a query composed of two or more keywords used in the search query, and a keyword different from the keywords in the last column. A method of dynamically defining a service by a combination with a word, the facet generated from a facet query included in a click log in which the search query is associated with a selection result for a search result corresponding to the search query A correspondence list generating step of generating a correspondence list of words and topic words, and a selection receiving step of accepting selection of combinations composed of facet words and topic words included in the correspondence list.

  (6) A facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query, and a topic word composed of a keyword different from the keyword in the last column A program that dynamically defines a service by a combination, and a facet word and a topic generated from a facet query included in a click log that associates the search query with a selection result for a search result corresponding to the search query A program that causes a computer to execute a correspondence list generation step of generating a correspondence list of words, and a selection reception step of receiving selection of a combination composed of facet words and topic words included in the correspondence list.

  (7) A facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query, and a topic word composed of a keyword different from the keyword in the last column A service-guided bidding device for bidding for a right to define a service to be guided by a combination, a search processing unit that receives a search query and performs a search process, and a user terminal that receives a search result corresponding to the search query Click log extraction means for extracting and storing click logs from selection results and the search query, facet query extraction means for extracting facet queries from click logs of all users, and correspondence between facet words and topic words from the facet queries Correspondence list generation means for generating a list A selection receiving means for generating a facet word list and a topic word list from the correspondence list and displaying them on a user terminal to accept selection; and a predetermined combination composed of facet words and topic words included in the correspondence list; A bid accepting means for accepting a bid for the right to define a service provided at the destination site when the facet word and the topic word accepted by the selection accepting means match, and in response to accepting the bid, A service-guided bidding apparatus comprising: action definition list creating means for creating an action definition list relating to the service definition.

  According to the service-guided bidding device described in (7), the search processing means accepts a search query and performs search processing. Then, the click log extracting means extracts and stores the click log from the selection result and the search query received from the user terminal for the search result corresponding to the search query. Then, a facet query is extracted from the click logs of all users by the facet query extraction means, and a correspondence list of facet words and topic words is generated from the facet query by the correspondence list generation means. Then, the selection accepting unit generates a facet word list and a topic word list from the correspondence list, displays them on the user terminal, and accepts the selection. Then, when the predetermined combination composed of the facet word and the topic word included in the correspondence list is matched with the facet word and the topic word received by the selection reception unit by the bid reception unit, the bid reception unit provides the guidance destination site. Accept bids on the right to define services. Then, the action definition list creating means creates an action definition list related to the service definition in response to accepting the bid.

  Here, in the service-guided bidding device described in (7), the facet query is a search query composed of two or more keywords. The facet word is a keyword located in the last column among a plurality of keywords included in the facet query, and the topic word is a keyword other than the facet word in the facet query.

  In this way, when the facet words and topic words received by the selection receiving means match a predetermined combination of facet words and topic words stored in the correspondence list, they are defined by the action definition list. Can be directed to other services. The action definition list is a service that is defined by accepting a bid, and corresponds to a search query such as a facet word and a topic word. Therefore, the present invention can dynamically define a service to be performed in response to a search query.

  (8) In the bid, the bid accepting unit includes a predetermined combination including a topic category to which a facet word and a topic word belong, and a facet word and a topic word received by the selection accepting unit, The service-guided bidding apparatus according to (7), wherein a bid is received for the right to define the service provided at the guide destination site when the facet word and the topic category to which the topic word belongs match.

  According to the service-guided bidding device described in (8), the bid accepting unit accepts a combination of a topic category to which a facet word and a topic word for executing the service belong. For this reason, the service provider can select a topic word range for executing the service at the time of bidding using the topic category. Therefore, the present invention can flexibly set a bid for service execution.

  (9) When the plurality of combinations received by the bidding match the facet words and topic words received by the selection receiving means, the services defined by each of the plurality of combinations and the topic words The service induction bidding apparatus according to any one of (7) and (8), further comprising service induction means for determining affinity and selecting the service based on the affinity.

  According to the service-guided bidding device described in (9), when the plurality of combinations accepted by the service guidance means by the bid match the facet words and topic words accepted by the selection acceptance means, the plurality of combinations Affinities of the service defined in each of the above and the topic word are determined, and a service to be guided is selected based on the affinity. As described above, the execution of the service based on the affinity increases the probability that the service with high affinity is executed. Therefore, the present invention provides a service that does not feel uncomfortable with the topic word selected by the user. Can be displayed.

  (10) When a plurality of combinations received by the bidding match a facet word and a topic word received by the selection receiving unit, the service defined by each of the plurality of combinations belongs to a specialized field to which the service belongs. (7) and (8), further comprising service guidance means for determining the affinity of the search query log of the specialized search engine and the topic word, and selecting the service based on the affinity Service-guided bidding equipment.

  (10) According to the service-guided bidding apparatus, the affinity is determined based on the search query log and the topic word of the specialized search engine related to the specialized field to which the service belongs. For this reason, since a service belonging to a specialized field can be executed according to the affinity between the search query log of the specialized search engine and the topic, it is possible to provide a service that does not give a sense of incongruity to the selected topic.

  (11) When a plurality of combinations received by the bidding match a facet word and a topic word received by the selection receiving means, the service defined in each of the plurality of combinations and the topic word Service guidance means for determining affinity and selecting the service based on the affinity is further provided. The service guidance means is a category assigned to a service defined by each of the plurality of combinations. The service-guided bidding apparatus according to (8), wherein the affinity is determined based on a category different from the topic category and the topic category.

  (11) According to the service-guided bidding device described in the above, the affinity is determined based on the category that is given to the service and that is different from the topic category and the topic category. For this reason, by providing a category in harmony with the topic to the service, it is possible to provide a service without a sense of incongruity according to the selection of the topic.

  (12) The service guiding means calculates a DF / ICF value based on a product of a DF (Document Frequency) and an ICF (Inversed Collection Frequency), and determines the affinity based on the DF / ICF value. The service-guided bidding device according to (9).

  (12) According to the service-guided bidding device described in the above, the affinity is determined based on the DF / ICF value. For this reason, affinity can be determined on an objective scale such as a DF / ICF value.

  (13) In the service defined by each of the plurality of combinations, the service guiding unit calculates the appearance frequency of a topic word included in the combination, and the service having the higher affinity in the descending order of the appearance frequency. The service-guided bidding device according to (9), wherein the service-guided bidding device according to (9) is determined.

  According to the service-guided bidding device described in (13), in the service defined by each of a plurality of combinations, the service guide means calculates the appearance frequency of the topic words included in the combination, and in descending order of the appearance frequency Judge as a service with high affinity. In this way, affinity can be determined on an objective scale.

  (14) The service guidance bidding device according to (13), wherein the service guidance means calculates in advance the appearance frequency of topic words included in the combination at regular intervals.

  According to the service-guided bidding apparatus described in (14), calculation of the appearance frequency of the topic words included in the combination is executed in advance at regular intervals by the service-guidance means. By doing in this way, compared with the case where affinity is judged at the time of selection of a facet word and a topic word by a user terminal, the load concerning a service guidance bidding apparatus can be reduced.

  (15) A facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query, and a topic word composed of a keyword different from the keyword in the last column A service-guided bidding method for bidding for a right to define a service to be guided by a combination, receiving a search query and performing a search process, and a selection result received from a user terminal for a search result corresponding to the search query Extracting and storing a click log from the search query, extracting a facet query from the click logs of all users, generating a correspondence list of facet words and topic words from the facet query, and Facet word list than supported list Generating a topic word list and displaying it on a user terminal for accepting a selection, a predetermined combination composed of facet words and topic words included in the corresponding list, and a facet accepted by the accepting step Receiving a bid for the right to define a service provided at the destination site when the word and the topic word match, and creating an action definition list relating to the definition of the service in response to accepting the bid A service-guided bidding method comprising:

  According to such a method, the same effect as in (7) can be expected by performing the method.

  ADVANTAGE OF THE INVENTION According to this invention, the apparatus, method, and program which can define dynamically the service performed corresponding to a search query can be provided.

1 is a diagram showing an overall configuration of a system according to the present embodiment and functional blocks of a service induction bidding server 1 that is the core of the system. It is a figure showing click log DB21 concerning this embodiment. It is a figure which shows the facet query table 22a stored in list DB22 which concerns on this embodiment. It is a figure which shows the corresponding | compatible list table 22b stored in list DB22 which concerns on this embodiment. It is a figure which shows action definition DB23 which concerns on this embodiment. It is a figure which shows service provider DB24 which concerns on this embodiment. It is a figure which shows the hardware constitutions of the service induction bid server 1 which concerns on this embodiment. It is a flowchart which shows the flow of a process until the service performed by the bid which concerns on this embodiment is defined. It is a flowchart which shows the flow of a process when the service induction bidding server 1 which concerns on this embodiment provides a user induction service. It is a figure which shows the example by which the bid reception screen was displayed on the browser 301 displayed on the display part of the bid terminal 3 which concerns on this embodiment. It is a figure which shows the example of a display when a facet word list is displayed on the web browser 201 currently displayed on the display part of the user terminal 2 which concerns on this embodiment. It is a figure which shows the example of a display when a service execution result is displayed on the display part of the user terminal 2 which concerns on this embodiment. It is a figure which shows the example of a display when a service execution result is displayed on the web browser 201 currently displayed on the display part of the user terminal 2 which concerns on this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Entire system configuration]
FIG. 1 is a diagram showing an overall configuration of a system according to the present embodiment and functional blocks of a service guidance bidding server 1 as a core thereof.

  As an overall configuration of this system, a service guidance bidding server 1 that performs a user guidance service is connected to a plurality of user terminals 2 and a plurality of bid terminals 3 via a communication network 4. The communication network 4 may be any communication network, and may be a LAN (Local Area Network), a WAN (Wide Area Network), or the Internet. The user accesses the service-guided bidding server 1 from a user terminal 2 such as a PC (Personal Computer Assistant), PDA (Personal Digital Assistants), or a mobile phone to receive a user-guided service, or directly accesses the search engine 30. Get search results using search queries.

  When a user guidance service is requested from the user terminal 2, the service guidance bidding server 1 generates a facet word list from a correspondence list stored in advance, and displays the facet word list on the Web browser of the user terminal 2. . Then, in response to the user selecting a desired facet word from the displayed facet word list, a topic word list corresponding to the facet word is generated from the correspondence list stored in advance, and the topic word list is generated by the user. It is displayed on the Web browser of the terminal 2. Facet words and topic words will be described later. Subsequently, in response to the user selecting a desired topic word from the displayed topic word list, the service-guided bidding server 1 has a service corresponding to the combination of the selected facet word and topic word, A service corresponding to the combination is executed, and if there is no service corresponding to the combination, a search result corresponding to the combination is acquired from the search engine 30. Then, this result is displayed on the Web browser of the user terminal 2.

  In addition, the service-guided bidding server 1 acquires a click log from the search engine 30 in order to perform a user-guided service. Then, a facet query that is a query composed of two or more keywords used in the search query is extracted from the click log. Then, a correspondence list indicating a correspondence relationship between the topic word and the facet word is generated from the facet query. Furthermore, a right to define a service to which the user terminal 2 is guided when a predetermined combination composed of facet words and topic words included in the correspondence list matches a search query transmitted from the user terminal 2. Accept by bid. Then, in response to accepting the bid, an action definition list relating to the right to define the service is generated.

[Function configuration]
The service guidance bidding server 1 includes a control unit 10, a storage unit 20, and a search engine 30. The control unit 10 includes a click log extraction unit 11, a facet query extraction unit 12, a correspondence list generation unit 13, a bid acceptance unit 14, an action definition list generation unit 15, and a facet word list display control unit 16. The topic word list display control unit 17, the service guidance unit 18, and the search result acquisition unit 19 are provided. The storage unit 20 includes a click log DB 21, a list DB 22, an action definition DB 23, and a service provider DB 24. In FIG. 1, for convenience of explanation, the search engine 30 is described so as not to be included in the control unit 10 and the storage unit 20, but actually includes the control unit 10 and the storage unit 20. Is. In the present embodiment, the search engine 30 is provided in the service-guided bidding server 1, but is not limited thereto. For example, a search engine connected to the service-guided bidding server 1 via the communication network 4 may be provided and the search engine may be used.

  The click log extraction unit 11 extracts and stores the click log based on the search query and the selection result by the user terminal 2 for the search result corresponding to the search query. That is, among the search queries received from a plurality of user terminals 2 and one or more link destination URLs included in the search results output from the search engine 30 in response to the search queries and displayed on the user terminals 2, The URL selected by the operation of the user terminal 2, that is, the clicked URL of the link destination is associated and stored as a click log.

  More specifically, when the user terminal 2 directly accesses the search engine 30 and acquires a search result using a search query, a redirector is incorporated for the search result output from the search engine 30. Then, when the user of the user terminal 2 clicks the URL of the link destination desired by the user among the one or more link destination URLs included in the search result, the user terminal 2 accesses the service-guided bid server 1. Then, the URL of a desired link destination is acquired, and a Web server or the like corresponding to the acquired URL is accessed. The click log extraction unit 11 acquires the search query when the user terminal 2 transmits the search query, and acquires the click log by acquiring the URL when the user terminal 2 accesses the service induction bid server 1 by the redirector. Extract. In addition to acquiring the search query and the clicked link destination URL as the click log, the click log extracting unit 11 obtains the session ID of the user terminal 2, the IP address of the user terminal 2, the access date and time when the click is performed, and The page rank of the Web page corresponding to the clicked URL of the link destination is also collected as a click log. The click log extraction unit 11 stores the extracted click log in the click log DB 21 (see FIG. 2 described later).

  In this embodiment, the click log is collected by incorporating a redirector for the search result, but the present invention is not limited to this. For example, the click log of the user may be accumulated in the user terminal 2 and the click log may be collected by a method of collecting the click log accumulated periodically.

  The facet query extraction unit 12 extracts a facet query that is a search query including two or more keywords from a search query included in the click log stored in the click log DB 21, and a facet query table 22 a (described later) in the list DB 22. (See FIG. 3). A facet query is composed of a plurality of keywords separated by spaces or commas, that is, composed of two or more keywords. For example, a search query including a plurality of keywords such as “ABΔCDE” (Δ is blank) and “ABΔCDEΔF” corresponds to a facet query, and includes one keyword such as “AB” or “CD”. Search queries do not fall under facet queries.

  The correspondence list generation unit 13 refers to the facet query stored in the facet query table 22a, generates a correspondence list indicating the correspondence between topic words and facet words, and corresponds to a correspondence list table 22b (described later) in the list DB 22. (See FIG. 4). The facet word is a keyword located in the last column among a plurality of keywords included in the facet query, and the topic word is a keyword other than the facet word in the facet query. Further, the correspondence list generation unit 13 connects to a dictionary server (not shown) via the communication network 4, extracts a topic category that is a category to which the topic word belongs, and updates the correspondence list generation unit 13. That is, the dictionary server includes a dictionary that defines which category the term belongs to, and the correspondence list generation unit 13 generates a topic category to which the topic word belongs by referring to the dictionary. In the present embodiment, the correspondence list generation unit 13 is connected to the dictionary server to generate the topic category, but the present invention is not limited to this. For example, a dictionary DB that defines a category to which a topic word belongs may be stored in the storage unit 20 and a topic category may be extracted with reference to the dictionary DB.

  When the topic word is composed of two or more keywords, a facet word and a topic word are further generated from the topic word. That is, the list generation process by the correspondence list generation unit 13 is repeated until the topic word is not composed of two or more keywords, and a topic word and a facet word are generated each time the list generation process is performed. For example, when the facet query is “ABΔCDE”, “CDE” is a facet word and “AB” is a topic word. When the facet query is “ABΔCDEΔF”, “F” is a facet word and “ABΔCDE” is a topic word. Since the topic word “ABΔCDE” is composed of two keywords, “CDE” is further generated as a facet word, and “AB” is generated as a topic word.

  FIG. 2 is a diagram showing the click log DB 21 according to the present embodiment. The click log DB 21 includes an “IP address” field indicating the IP address of the user terminal 2 from which the click log is collected, the date and time when the click log is collected, that is, the link destination included in the search result by the user of the user terminal 2. An “access date and time” field indicating the date and time when the URL is clicked, a “session ID” field indicating the session ID when the click log is collected, and the page rank of the Web page corresponding to the clicked URL of the link destination “ A “rank” field, a “search query” field indicating the search query transmitted from the user terminal 2, and a “URL” field indicating the URL of the clicked link destination are included. The click log extracted by the click log extraction unit 11 is stored in the click log DB 21. The click log DB 21 is referred to when the facet query extraction unit 12 extracts a facet query.

  FIG. 3 is a diagram showing the facet query table 22a stored in the list DB 22 according to the present embodiment. The facet query table 22a includes a “facet query ID” field that identifies a facet query and a “facet query” field that indicates the contents of the facet query. The facet query extracted by the facet query extraction unit 12 is stored in the facet query table 22a. The facet query table 22a is referred to when the correspondence list is generated by the correspondence list generator 13.

  FIG. 4 is a diagram showing the correspondence list table 22b stored in the list DB 22 according to the present embodiment. The correspondence list table 22b includes a “correspondence ID” field for associating a corresponding topic word with a facet word, a “topic word” field indicating a topic word, a “facet word” field indicating a facet word, and a topic word. A “topic category” field indicating a topic category to which the category belongs is included. The correspondence list table 22b stores topic words and facet words generated by the correspondence list generation unit 13 in association with each other by “correspondence ID”. The correspondence list table 22b is used when the bid accepting unit 14 accepts a bid from the service provider, when the facet word list display control unit 16 described below displays the facet word list on the user terminal 2, and the topic described later. This is referred to when the topic list is displayed on the user terminal 2 by the word list display control unit 17.

  Returning to FIG. 1, the bid accepting unit 14 accepts a bid for the right to define the service guided according to the facet word, the topic word, and the topic category stored in the correspondence list table 22 b from the bid terminal 3. More specifically, with reference to the authentication table 24a (see FIG. 6 described later), it is authenticated whether or not the access from the bid terminal 3 is a service provider. When it is determined that the access is a service provider, a bid acceptance screen is displayed on the bid terminal 3 and a bid is accepted from the bid terminal 3.

  FIG. 10 is a diagram illustrating an example in which a bid acceptance screen is displayed on the browser 301 displayed on the display unit of the bid terminal 3 according to the present embodiment. The acceptance of bids at the bid terminal 3 will be described with reference to FIG.

  As can be confirmed from the browser 301 displayed in FIG. 10, the service provider of the bid terminal 3 inputs a facet word that is a target of service execution in the input field 3001. Then, in response to the selection button 3002 being selected, all topic words corresponding to the facet words input in the input field 3001 can be targeted for service execution. Further, in response to the selection button 3003 being selected, a specific topic word corresponding to the facet word input in the input field 3001 can be specified by the input field 3005, and the specified topic word can be designated as a service execution target. It becomes possible to do. Furthermore, in response to selection of the selection button 3004, it becomes possible to specify topic words belonging to the topic category corresponding to the facet word input in the input field 3001, using the input field 3006. Topics belonging to the specified topic category It becomes possible to make a word a target of service execution. As described above, since the range of topic words for executing the service at the time of bidding can be selectively designated using the topic category, the service provider can flexibly set the bid for the service execution.

  In addition, the service provider of the bid terminal 3 inputs the address of the Web site that provides the service in the input field 3007, and inputs the action parameter at the time of executing the service in the input field 3008. Then, the bid amount is entered in the input field 3009, and finally the OK button 3010 is pressed to confirm the bid. Here, in response to pressing of the OK button 3010, it is determined whether or not facet words and topic words that are directly input are stored in the correspondence list table 22b, and the bid is confirmed when stored. . When the bid is finalized, the items input in the respective input fields, that is, bid information is transmitted to the service-guided bid server 1. Then, the bid reception unit 14 receives bid information and receives a bid, and passes the bid information to an action definition list generation unit 15 described later. The bid amount is related to the number of times that the service can be executed, and the service induction bidding server 1 executes the service once in order to control the number of times the service is executed according to the bid amount. The unit price necessary for the above is set in advance (not shown). Then, the service-guided bidding server 1 performs control so as to end the provision of the service when the amount obtained by multiplying the number of times the service is executed by the unit price exceeds the bid amount.

  In the present embodiment, the bid accepted by the bid accepting unit 14 is not permitted for a bid that has the same combination of facet words and topic words, or a bid that includes another combination in a certain combination. Although there is no particular restriction, this is not restrictive. For example, it may be possible to bid for the right to define a service exclusively for a certain combination. More specifically, a bid may be accepted for the right to define a service exclusively for a certain combination, and the right may be granted to the service provider with the highest bid amount. In this way, the service provider who has the right to define the service exclusively can execute the service exclusively for a specific combination, so that the service provider can execute the service non-exclusively. Compared with the case where the user can do this, the user can be guided to the service more reliably.

  In addition, when a plurality of service providers bid for the right to execute a service in a non-exclusive manner, a predetermined number of rights may be granted in descending order of bid amount. In this case, an upper limit or a lower limit may be set for the bid amount of the service provider to which the right is granted. For example, even if a bid is made for a right that allows a service to be executed non-exclusively, an advertisement may not be displayed due to the affinity determination described later. In this case, the service provider who bids at a high price may not be able to provide the desired service even though he / she bids at a high price and feels dissatisfied. In order not to feel dissatisfaction in this way, the bid amount may be adjusted after bidding.

  Returning to FIG. 1, the action definition list generation unit 15 generates an action definition list in response to the bid acceptance unit 14 accepting a bid confirmed in the bid terminal 3. More specifically, the bid reception unit 14 receives bid information input in each input field on the input reception screen shown in FIG. 10, and delivers the bid information to the action definition list generation unit 15. . Then, the action definition list generation unit 15 generates an action definition list based on the bid information and stores it in the action definition DB 23 (see FIG. 5 described later).

  FIG. 5 is a diagram showing the action definition DB 23 according to the present embodiment. The action definition DB 23 stores a service that is executed when a predetermined facet word and a predetermined topic word are selected. The action definition DB 23 includes a “corresponding ID” field for associating a corresponding topic word with a facet word, a “topic word” field indicating a topic word, a “facet word” field indicating a facet word, and a topic category. A “topic category” field, a “provider ID” field indicating the ID of the provider who bids for the right to execute the service, a “bid price” field indicating the bid price, a facet word, and a topic A “service provision address” field indicating the address of a Web site that provides a service when a word or a topic word belonging to a topic category is selected, and an “action parameter” indicating an action parameter used when executing the service Fields and are included. The server corresponding to the service providing address receives the action parameter, executes the service using the action parameter as an argument, and provides the execution result to the user terminal 2. The action definition DB 23 stores the list by generating an action definition list by the action definition list generation unit 15. The action definition DB 23 is referred to when the service guidance unit 18 accepts topic word selection.

  FIG. 6 is a diagram showing the service provider DB 24 according to the present embodiment. The service provider DB 24 stores data for confirming whether or not the service provider is a registered service provider when the service provider bids from the bid terminal 3. Referenced by. The service provider DB 24 includes a “provider ID” field indicating the ID of the service provider and a “password” field indicating a password corresponding to the provider ID.

  Returning to FIG. 1, the facet word list display control unit 16 accepts a request when a user guidance service is requested from the user terminal 2. Then, a facet word list is generated based on the facet words stored in the correspondence list table 22b, and the generated list is displayed on the user terminal 2. In the generation of the facet word list, if facet words overlap at the time of generation, the duplication is eliminated and only one facet word is displayed.

  In the present embodiment, the facet word list display control unit 16 displays the facet word list on the user terminal 2, but the present invention is not limited to this. For example, a facet word table is provided as a facet word affiliation group storage unit that defines what group the facet word belongs to, and the facet words are classified into predetermined groups based on the correspondence list table 22b and the facet word table. A facet word list may be generated and the facet word list may be displayed on the user terminal 2. By doing so, since the facet word list classified by the predetermined group is displayed on the user terminal 2, the user can select the facet word desired by the user as compared with the case where the facet word is not classified and displayed by the group. It can be made easier.

  The topic word list display control unit 17 accepts selection of a facet word from the facet word list displayed on the user terminal 2 by operation of the user terminal 2. When the selection of the facet word is received, the topic list corresponding to the selected facet word is extracted by referring to the correspondence list table 22b, and the topic word list is generated in the user terminal 2. Display. Here, the topic word list is displayed after accepting the selection of facet words. The type of facet words included in the click log is less than the type of topic words, and the user is allowed to select facet words with fewer types. This is because the search efficiency can be improved. That is, when the facet word list is displayed first, the user's choices are reduced compared to the case where the topic word list is displayed first, so that the selection work becomes efficient. When a list of 386,000 topic word facet words corresponding to a search frequency of 10 times or more from a click log for one day in a search engine actually used is investigated, 14,000 different facet words are found. There were 177,000 different topic words. Also from this, the above-mentioned utility can be confirmed.

  In the present embodiment, the topic word list display control unit 17 displays the topic word list on the user terminal 2, but the present invention is not limited to this. For example, a topic category corresponding to a topic is added to the correspondence list table 22b and the action definition list table 23a in advance, and a topic word list classified by topic category is generated based on the correspondence list table 22b. The word list may be displayed on the user terminal 2. By doing in this way, since the topic word list classified according to the predetermined category is displayed on the user terminal 2, it is easier for the user to select the topic word desired by the user than when not classified and displayed according to the category. can do.

  Further, in the topic word list display, topics may be displayed like a tag cloud. The tag cloud is a method of counting and displaying tags added as metadata on a Web site, and is a method of highlighting according to the popularity of tags. The popularity of a tag is determined according to the frequency of access to the tag and the frequency of use, and it can be determined that a tag having a higher popularity is more important or relevant. Further, as a highlighting method, there are a method of increasing a display font of a tag having a high degree of popularity or a color that is easy to visually recognize. That is, the topic word popularity is measured in the same manner as the tag cloud mechanism, and the topic words having high popularity are highlighted. By doing in this way, the user of the user terminal 2 can easily confirm a topic word that can be determined to be highly important or relevant.

  In the topic word list display, topics corresponding to facet words similar to the selected facet word may also be displayed. More specifically, the facet word similar to the selected facet word is replaced with the selected facet word based on a query clustering technique for grouping related queries to the service-induced bidding server 1. A query replacement unit is provided. In this way, topic words corresponding to facet words similar to the selected facet word can also be included in the topic word list of the selected facet word, resulting in a variety of user choices. can do. The query clustering technique is shown in, for example, a method for automatically estimating a search request attribute for a search query described in Japanese Patent Application No. 2008-195379.

  The service guiding unit 18 receives selection of a topic word from the topic word list displayed on the user terminal 2 by an operation of the user terminal 2. Then, in response to accepting selection of a topic word, it is referred to whether or not a service corresponding to a combination of the selected facet word and the selected topic word is included in the action definition DB 23. When the corresponding service is included in the action definition DB 23, the service is executed according to the parameters stored in the action definition DB 23, and the execution result is displayed on the user terminal 2. By doing in this way, according to the combination of the topic word and facet word which a user desires, the service judged that a user desires can be performed automatically, and a user's work is reduced as a result. Can do. If the corresponding service is not included in the action definition DB 23, the search result is displayed by the search result acquisition unit 19 described later.

  When a plurality of services corresponding to the combination of the selected facet word and the selected topic word are included in the action definition DB 23, the service to be executed by determining the affinity between the combination and the service Select. More specifically, the service is executed in advance using the topic words included in the combination, and the appearance frequencies of the topic words in the service execution result are compared. Then, a service with higher appearance frequency is set as a service with high affinity, and the possibility of being executed is set higher than that with a service with low affinity. The determination of affinity is performed in advance at regular intervals such as one day or one week. By doing in this way, compared with the case where affinity is determined when the facet word and the topic word are selected by the user terminal 2, it is possible to reduce the load on the service induction bidding server 1.

  As another method for determining affinity, the specialized search engine for a specialized field can determine the affinity between the specialized field and the topic word according to the ratio of the topic word used as a search query within a predetermined period. It is also possible to preferentially execute a service belonging to a specialized field having a high affinity among the specialized fields. That is, when a predetermined site uses S as the number of times that the topic q is used as a search query in all specialized search engines within a predetermined period, and n denotes the number of times that the topic q is used as a search query in a certain specialized search engine. In addition, a specialized field having a high value obtained by dividing n by S is designated as a specialized field having high affinity. On the other hand, it is determined in advance to which specialized field the bid service belongs. And according to the service guidance | induction part 18 having received the topic q, the service which belongs to the specialized field with high affinity is performed preferentially. By doing in this way, a service belonging to a specialized field can be executed according to the affinity between the search query log of the specialized search engine and the topic, so that a service without a sense of incongruity can be provided for the selected topic.

  As another method for determining the affinity, for example, in each service, a DF / ICF value based on the product of DF (Document Frequency) and ICF (Inverse Collection Frequency Frequency) is calculated, and a service having a high value is affinityd. It is good also as a highly specific service. As for DF / ICF, for example, when there are n groups described in Japanese Patent Application Laid-Open No. 2003-271648, it is shown in the calculation method of group score score (t, c) of group c for each term t. It is.

  By determining affinity in this way, affinity can be determined on an objective scale. Also, by executing a service based on affinity, a service with high affinity is selected and the probability of execution of the service increases, so there is a service with high affinity with the topic word selected by the user. The user can receive the service without feeling uncomfortable.

  As another method for determining the affinity, the administrator of the service induction bidding server 1 assigns a category that is different from the topic category and suitable for each service to each service. May determine affinity based on different categories and topic categories. More specifically, when there are a plurality of services to be executed, the topic category of the topic word selected by the user has the same or similar category as the category given by the administrator of the service induction bidding server 1. Make the service highly compatible. The service guiding unit 18 can provide a service without a sense of incongruity according to the selection of the topic, by giving the service a category that matches the topic category by the administrator of the service guiding bid server 1. Here, the category different from the topic category means a category constituting a directory structure in a predetermined portal site that performs a directory type search service.

  The search result acquisition unit 19 is a function that is performed when the service guidance unit 18 does not include a service corresponding to a query that combines the selected facet word and the selected topic word. A search query that combines the facet word and the selected topic word is created, and the search result of the search query is acquired from the search engine 30. Then, the acquired search result is displayed on the user terminal 2.

[Hardware configuration of service-guided bidding server]
FIG. 7 is a diagram illustrating a hardware configuration of the service induction bidding server 1 according to the present embodiment. The service induction bidding server 1 in which the present invention is implemented may be a standard one, and an example of the configuration will be shown below.

  The service-guided bidding server 1 includes a CPU (Central Processing Unit) 1010 (a plurality of CPUs such as a CPU 1012 may be added in a multiprocessor configuration), a bus line 1005, a communication I / F (I / F). Interface) 1040, main memory 1050, BIOS (Basic Input Output System) 1060, display device 1022, I / O controller 1070, input device 1100 such as a keyboard and mouse, hard disk 1074, optical disk drive 1076, and semiconductor memory 1078 . The hard disk 1074, the optical disk drive 1076, and the semiconductor memory 1078 are collectively referred to as the storage unit 20.

  The control unit 10 is a part that comprehensively controls various functions related to the service-guided bidding server 1, and cooperates with the hardware described above by appropriately reading and executing various programs stored in the hard disk 1074, Various functions according to the present invention are realized.

  The communication I / F 1040 is a network adapter when the service induction bidding server 1 transmits / receives information to / from the user terminal 2, the bid terminal 3, and the like via the communication network 4. The communication I / F 1040 may include a modem, a cable modem, and an Ethernet (registered trademark) adapter.

  The BIOS 1060 records a boot program executed by the CPU 1010 when the service-guided bid server 1 is started, a program depending on the hardware of the service-guided bid server 1, and the like.

  The display device 1022 includes a display device such as a cathode ray tube display device (CRT) or a liquid crystal display device (LCD).

  The I / O controller 1070 can be connected to a storage unit 20 that is a storage device such as a hard disk 1074, an optical disk drive 1076, and a semiconductor memory 1078.

  The input device 1100 accepts input by the administrator of the service-guided bid server 1.

  The hard disk 1074 stores various programs for causing the hardware to function as the service-guided bidding server 1, programs for executing the functions of the present invention, and the above-described DB. The service-guided bidding server 1 can also use an external hard disk (not shown) as an external storage device.

  As the optical disk drive 1076, for example, a DVD-ROM drive, a CD-ROM drive, a DVD-RAM drive, and a Blu-ray Disc (registered trademark) drive can be used. When the optical disk drive 1076 is used, the optical disk 1077 corresponding to the optical disk drive 1076 is used. A program or data may be read from the optical disk 1077 by the optical disk drive 1076 and provided to the main memory 1050 or the hard disk 1074 via the I / O controller 1070.

  The computer referred to in the present invention refers to an information processing device including a storage device, a control unit, and the like, and the service-guided bidding server 1 is an information processing device including the control unit 10 and the storage unit 20 as described above. This information processing apparatus is included in the concept of the computer of the present invention.

  The service-guided bidding server 1 is not limited in the number of hardware, and may be configured with one or a plurality of hardware as necessary. In the case of a plurality of hardware, each hardware may be connected via the communication network 4. For example, the functions of the present embodiment may be realized by using separate servers (devices) for each function and linking the servers by transmitting and receiving signals between the servers.

[Processing flow until action is defined]
FIG. 8 is a flowchart showing a flow of processing until a service executed by bidding according to the present embodiment is defined.

  In step S110, the control unit 10 (click log extraction unit 11) extracts a click log. More specifically, a search query received from a plurality of user terminals 2 using a redirector, and a search result output from the search engine 30 according to the search query and included in the search results displayed on the user terminal 2 Of the one or more link destination URLs, the clicked link destination URL is extracted as a click log in association with each other and stored in the click log DB 21.

  In step S120, the control unit 10 (facet query extraction unit 12) extracts a facet query, which is a query including two or more keywords used in the search query, from the click log stored in the click log DB 21. Store in table 22a.

  In step S130, the control unit 10 (correspondence list generation unit 13) refers to the facet query stored in the facet query table 22a, and generates a correspondence list indicating the correspondence between topic words and facet words. More specifically, the facet query stored in the facet query table 22a is divided into a facet word that is a keyword located in the last column and a topic word composed of keywords other than the facet word, and the divided facets are divided. Words and topic words are stored in the correspondence list table 22b. If the divided topic word is composed of two or more keywords, the topic word is further divided into a facet word and a topic word, and the divided facet word and topic word are stored in the correspondence list table 22b. In this way, the process is repeated until the topic word is not composed of two or more keywords.

  In step S <b> 140, the control unit 10 (bid accepting unit 14) accepts a bid for the right to define the service guided according to the facet and topic of the action definition DB 23 from the bid terminal 3. More specifically, referring to the service provider DB 24, it is authenticated whether or not the access from the bid terminal 3 is a service provider. If the bid terminal 3 is authenticated, a bid acceptance screen is displayed on the bid terminal 3 and the service provider can input bid information in each input field. When the bid information is confirmed, the bid receiving unit 14 receives the bid information by receiving the bid information.

  In step S160, when receiving a bid from the bid terminal 3 in step S150, the control unit 10 (bid accepting unit 14) generates an action definition list and stores it in the action definition DB 23. Thereafter, the control unit 10 ends the process.

[User guidance service processing flow]
FIG. 9 is a flowchart showing a processing flow when the service-guided bidding server 1 according to the present embodiment provides a user-guided service. Here, it is assumed that the correspondence list is stored in advance in the correspondence list table 22b.

  In step S <b> 210, the control unit 10 (facet word list display control unit 16) receives a user guidance service request from the user terminal 2.

  In step S220, the control unit 10 (facet word list display control unit 16) generates a facet word list based on the facet words stored in the correspondence list table 22b, and sends the generated facet word list to the user terminal 2. Send. More specifically, the control unit 10 (facet word list display control unit 16) refers to the correspondence list stored in the correspondence list table 22b and extracts only facet words. Then, a facet word list from which duplication of the extracted facet words is eliminated is generated, and the generated facet word list is transmitted to the user terminal 2.

  In step S230, the control unit 10 (topic word list display control unit 17) accepts selection of facet words by the user terminal 2 for the facet word list transmitted in step S220. Subsequently, in step S240, the control unit 10 (topic word list display control unit 17) refers to the correspondence list table 22b, extracts topic words corresponding to the selected facet word, and generates a topic word list. . Then, the generated topic word list is transmitted to the user terminal 2.

  In step S250, the control unit 10 (service guidance unit 18) accepts selection of a topic word by the user terminal 2 for the topic word list transmitted in step S240.

  In step S260, the control unit 10 (service guidance unit 18) determines whether there is a service corresponding to the combination of the facet word received in step 230 and the topic word received in step S250. Determine by referring to. When this determination is YES, the process proceeds to step S270, and when this determination is NO, the process proceeds to step S280.

  In step S270, the control unit 10 (service guiding unit 18) stores a service corresponding to the combination of the facet word received in step 230 and the topic word received in step S250 in the action definition DB 23. The service is executed with reference to the provided address and the action parameter, and the execution result of the service is transmitted to the user terminal 2 and displayed. Thereafter, the control unit 10 ends the process.

  In step S280, the control unit 10 (search result acquisition unit 19) creates a search query by combining the selected facet word and the selected topic word. Then, a search query is input to the search engine 30 to execute a search, and a search result is acquired. And the acquired search result is transmitted to the user terminal 2 and displayed. Thereafter, the control unit 10 ends the process.

[Display example]
FIG. 11 is a diagram illustrating a display example when a facet word list is displayed on the Web browser 201 displayed on the display unit of the user terminal 2 according to the present embodiment.

  In FIG. 11, it can be confirmed that the facet word list is displayed for each group to which the facet word belongs. Since the facet word list is displayed for each group, when the user of the user terminal 2 selects a desired facet word, the user specifies the group and selects the desired facet word from the specified group. Therefore, the operation to select can be performed simply.

  FIG. 12 is a diagram illustrating a display example when a topic word list is displayed on the Web browser 201 displayed on the display unit of the user terminal 2 according to the present embodiment.

  In FIG. 11, if the user of the user terminal 2 selects “recruitment” belonging to the “lifestyle” group as a desired facet word from the displayed facet word list, the topic word list display control unit 17 "Is selected, topic words corresponding to the facet word" recruitment "are extracted from the correspondence list stored in the correspondence list table 22b, and a topic word list is generated. Then, the generated topic word is displayed on the user terminal 2. As shown in FIG. 12, the generated topic word list is displayed on the Web browser 201 displayed on the display unit of the user terminal 2.

  In FIG. 12, the font size of the topic word is displayed differently, and the font of the topic word that is frequently used as a search query is displayed in a large size. By displaying in this way, the user of the user terminal 2 can confirm which topic word is often used as a search query, and can be used as a reference when selecting the topic word.

  FIG. 13 is a diagram illustrating a display example when the service execution result is displayed on the Web browser 201 displayed on the display unit of the user terminal 2 according to the present embodiment.

  In FIG. 12, when “Tokyo” is selected as a desired topic word from the displayed topic word list by the user of the user terminal 2, the service guiding unit 18 accepts that “Tokyo” has been selected. Whether or not a service corresponding to the combination of “recruitment” that is the selected facet word and “Tokyo” that is the selected topic word is registered in the action definition DB 23. Here, assuming that the service corresponding to the topic word “Tokyo” and the facet word “recruitment” has been previously bid by the bid acceptance unit 14, the service guidance unit 18 causes the topic word “Tokyo” and the facet word to be used. It is determined that there is a service corresponding to “recruitment”. Then, the service is executed with the action parameter as an argument for the address providing the service, and the execution result is acquired. Then, the service execution result is transmitted to the user terminal 2. In FIG. 13, it can be confirmed that the Tokyo version of the job information service, which is a service executed with the action parameter relating to “Tokyo” as an argument, is displayed.

  Thus, since the user of the user terminal 2 selects a desired facet word from the displayed facet word list, the user can be provided with a service without inputting a query such as a facet word or a topic word. it can. In addition, the services corresponding to facet words and topic words, i.e., search queries, are performed by those defined in the bid. Therefore, in the service induced bidding server 1, a service to be performed in response to the search query is dynamically defined, and this service is provided to the user.

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. is not.

DESCRIPTION OF SYMBOLS 1 Service guidance bid server 2 User terminal 3 Bid terminal 4 Communication network 10 Control part 11 Click log extraction part 12 Facet query extraction part 13 Correspondence list generation part 14 Bid acceptance part 15 Action definition list generation part 16 Facet word list display control part 17 Topic word list display control unit 18 Service guidance unit 19 Search result acquisition unit 20 Storage unit 21 Click log DB
22 List DB
23 Action definition DB
24 Service Provider DB
30 Search engine

Claims (6)

Service by a combination of a facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query and a topic word composed of a keyword different from the keyword in the last column Is a device that dynamically defines
Correspondence list generating means for generating a correspondence list of facet words and topic words generated from a facet query included in a click log in which the search query is associated with a selection result for a search result corresponding to the search query;
Selection accepting means for accepting selection of combinations composed of facet words and topic words included in the correspondence list;
A device comprising: A bid acceptance means for accepting a bid for the right to define a service induced by the accepted combination;
The apparatus of claim 1. The bid accepting unit accepts a bid for the right to define a service provided at the destination site when the combination accepted by the selection accepting unit matches the correspondence list;
The apparatus of claim 2. The selection receiving unit generates a facet word list and a topic word list from the correspondence list, displays the facet word list and the topic word list on a user terminal, and receives a selection.
The apparatus according to any one of claims 1 to 3. A facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query, and a topic word composed of a keyword different from the keyword in the last column A method for dynamically defining a service by a combination,
A correspondence list generating step of generating a correspondence list of facet words and topic words generated from a facet query included in a click log that associates the search query with a selection result for a search result corresponding to the search query;
A selection accepting step for accepting selection of a combination composed of facet words and topic words included in the correspondence list;
Including methods. Service by a combination of a facet word composed of a keyword in the last column of a facet query that is a query composed of two or more keywords used in a search query and a topic word composed of a keyword different from the keyword in the last column Is a program that dynamically defines
A correspondence list generating step of generating a correspondence list of facet words and topic words generated from a facet query included in a click log that associates the search query with a selection result for a search result corresponding to the search query;
A selection accepting step for accepting selection of a combination composed of facet words and topic words included in the correspondence list;
A program that causes a computer to execute.

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