JP2009128938A - Information retriever and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rapidly find a desired retrieval result by reducing the times of retrieval. <P>SOLUTION: A retrieval condition, a selected retrieval result, and a satisfaction degree are received from a user terminal. A database is retrieved based on the retrieval condition, and retrieval result items and original information are stored in a retrieval result storage means. Then, the retrieval result items are listed in the user terminal so as to allow the user to select one retrieval result item. The original information corresponding to the retrieval result item selected by the user is displayed, and the user is allowed to input the satisfaction degree. When the satisfaction degree is low, the original information is read from the retrieval result storage means, and the feature of the original information is extracted. Then, a new request condition is generated based on the feature, thereby the retrieval result retrieved again based on the request condition is displayed in the user terminal again. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information search apparatus and program, and more particularly to a feedback type information search apparatus and program that takes into account user satisfaction when searching for and displaying information that matches a requirement specified by a user. About.

  Many methods have been reported for retrieving data desired by a user from a huge database based on the requirements input by the user.

  As one of them, there are a plurality of search results, collating search results that are homonyms, extracting the difference, generating text based on the difference, presenting it to the user, based on the user's selection input There is a method of providing information related to the search result (see, for example, Patent Document 1).

Further, as a method for improving the search result system, as a method using the viewing history of the search result, an attribute to be transferred from the transfer source Web page to the transfer destination Web page is stored in the history database as an arc attribute, and is arbitrarily set. The arc attribute of the path of the web page that can be migrated from the web page is read from the database, the arc attribute is compared with the search condition, the web page candidate to be migrated next is recommended, and the arc of the web page selected from the candidates There is a method of searching again after correcting the user search condition with the attribute (see, for example, Patent Document 2).
Japanese Patent No. 3435471 JP 2004-102996 A

  However, there is a problem in that it often happens that the user has to input the request condition many times and repeat the search before reaching the search result desired by the user.

  Further, there is a difference in search experience and search skill for each user, and it is a problem that some users cannot set the required conditions well. In this case, it is assumed that the number of searches is further increased, and a situation in which a desired search result cannot be reached occurs.

  The present invention has been made in view of the above points, and by using the degree of satisfaction with the search result input from the user, the request condition is reset and the search is performed again, or the article is displayed on the search result list. By changing the order, the information satisfied by the user is ranked higher and the information unnecessary for the user is re-ranked lower, so that the number of searches can be reduced and the desired search result can be reached quickly. It is an object of the present invention to provide an information search apparatus and a program that can be used.

  FIG. 1 is a principle configuration diagram of the present invention.

The present invention (Claim 1) is an information search apparatus that searches a database for information that matches an input search condition and displays a search result list.
Input means 10 for receiving input of search conditions, selected search results and satisfaction from the user terminal 2;
A search unit 20 that searches the database 30 based on the search condition and stores the search result item and the original information in the search result storage unit 40;
The search result items obtained by the search means 20 are displayed in a list on the user terminal 2, the user is made to select one search result item, and the original information corresponding to the search result item selected by the user is displayed. First search result display control means 51 for inputting
If the satisfaction level is low, the original information is read from the search result storage means 40, the feature of the original information is extracted, and a new requirement condition is generated based on the feature;
And a second search result display control unit 52 that displays the search result re-searched by the search unit 20 based on the new request condition on the user terminal 2 again.

Further, the present invention (Claim 2) is provided in the requirement condition generating means 60.
In the case where the satisfaction level is low, there is included a means for setting a new requirement condition obtained by subtracting the previous period feature from the low satisfaction level original information.

The present invention (Claim 3) is an information search device that searches a database for information that matches an input search condition and displays a search result list.
Input means for accepting input of search conditions, selected search results and satisfaction from the user terminal;
Search means for searching a database based on search conditions, and storing search result items and the original information in search result storage means;
The search result items by the search means are displayed in a list on the user terminal, the user is allowed to select one search result item, the original information corresponding to the search result item selected by the user is displayed, and the satisfaction level is input. First search result display control means for causing;
When the satisfaction level is low, the original information is read from the search result storage means, the characteristics of the original information are extracted, and the display change means for changing the display of the search results displayed on the user terminal;
Second search result display control means for displaying the search result whose display has been changed again on the user terminal;
Have

  According to the present invention (Claim 4), in the display change means, the search result display means rearranges the search results based on the characteristics of the original information displayed on the user terminal by the first search result display control means. including.

  According to the present invention (Claim 5), in the display change means, the search result is filtered based on the characteristics of the original information displayed on the user terminal by the first search result display control means in accordance with the degree of satisfaction. including.

  According to the present invention (Claim 6), in the display change means, the search results are grouped based on the characteristics of the original information displayed on the user terminal by the first search result display control means in accordance with the degree of satisfaction. Including means.

  According to the present invention (Claim 7), in the display change means, the feature portion of the search result is based on the feature of the original information displayed on the user terminal by the first search result display control means according to the degree of satisfaction. Means for changing to highlight.

  The present invention (Claim 8) is an information search program for causing a computer to function as each means constituting the information search apparatus according to any one of Claims 1 to 7.

  As described above, according to the present invention, depending on the degree of satisfaction input by the user, a new requirement is generated by subtracting unnecessary information or adding useful information, and a new search result display is changed. It is done automatically. As a result, the user can quickly arrive at the necessary information without re-inputting and setting the request conditions or searching for the information displayed below. Moreover, these can be realized only by inputting the satisfaction degree once, and further improvement in accuracy can be expected by repeating.

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

[First Embodiment]
In the present embodiment, an example in which the database is searched again by changing the request condition in the information search apparatus when the user satisfaction of the search result is low.

  FIG. 2 shows the configuration of the information search apparatus according to the first embodiment of the present invention.

  The information search apparatus 1 shown in FIG. 1 includes an input / output unit 10, a search unit 20, a database 30, a search result storage unit 40, a display control unit 50, and a request condition generation unit 60. It is connected to the.

  The input unit 10 receives input of request conditions and satisfaction from the user terminal 2 and outputs a search result.

  The search unit 20 searches the database 30 based on the request condition input from the input / output unit 10 or the request condition generation unit 60, stores the search result in the search result storage unit 40 together with the request condition, and inputs / outputs The search result is returned to the user terminal 2 via the unit 10.

  Although the database 30 is a database to be searched by the search unit 20 in the information search apparatus 1 in the figure, the database 30 is not limited to this example and may be connected by a network.

  The search result storage unit 40 stores the results searched by the search unit 20.

  The display control unit 50 determines whether the satisfaction level input from the input / output unit 10 is high or low. If the satisfaction level is low, the display control unit 50 instructs the request condition generation unit 60 to change the request condition and also instructs the search unit 20. Instruct the re-search using the changed requirement.

  The request condition generation unit 60 refers to the search result storage unit 40 according to an instruction from the display control unit 50 and changes the request condition.

  FIG. 3 is a flowchart of the operation in the first embodiment of the present invention.

  Step 101) A required condition is input from the input / output unit 10.

  Step 102) The search unit 20 searches the database 30 based on the input request condition, stores the search result together with the request condition in the search result storage unit 40, and displays the search result list including the search result items as the input / output unit 10 Output to.

  Step 103) The input / output unit 10 transmits the search result list to the user terminal 2 for display. Thereby, a search result list is displayed on the user terminal 2.

  Step 104) The user selects one search result from the displayed search result list, browses the original information, and inputs the user satisfaction with the original information. Thereby, the input satisfaction is transmitted to the input / output unit 10 of the information search apparatus 1.

  Step 105) The input / output unit 10 acquires the satisfaction level and outputs it to the display control unit 50. When the acquired satisfaction is high, the display control unit 50 ends the process. When the satisfaction level is low, the request condition generation unit 60 is instructed to change the request condition.

  Steps 106 and 107) The request condition generation unit 60 reads the original information and the request condition from the search result storage unit 40, extracts features, and generates new request conditions in consideration of the features.

  As the above feature extraction method, various methods such as feature keyword generation for text data and feature vector extraction for image data can be considered. Also, if feature extraction is performed while the user is browsing the original information, there is little time loss. Considering the feature may be, for example, setting a request condition for subtracting the feature of the original information with low satisfaction. Further, even when the degree of satisfaction is high, a new requirement is automatically created in consideration of the feature of the original information (in this case, the extracted feature is added to the requirement, etc.).

  Thereafter, the process proceeds to step 102 where the search unit 20 acquires the request condition generated by the request condition generation unit 60 and searches the database 30 again.

  As a specific example, FIG. 4 shows a search result obtained by inputting “wine” as a request condition in the first search. In this case, it is assumed that the user browses the page “1. Wine sale” and the satisfaction level is low. Then, the request change unit 60 extracts “sales” as a feature word from the “wine sale” page as a feature word, sets a new requirement condition “wine”-“sales”, and sets this as a requirement condition. Here, “-” indicates a NOT condition that “sale” is not included, and the result of the re-search is shown in FIG.

  The feature extraction method in the above embodiment will be described later.

[Second Embodiment]
In the present embodiment, an example will be described in which the order of initial search results is changed or the display is changed without performing a re-search of the database.

  FIG. 6 shows the configuration of the information search apparatus according to the second embodiment of the present invention.

  The information search apparatus shown in the figure is different in that a search result conversion unit 70 is provided instead of the request condition generation unit 60 of FIG. Since other components are the same as those in FIG.

  When the satisfaction level is low, the search result conversion unit 70 extracts the features of the original information and changes the display method of the search results based on the features.

  FIG. 7 is a flowchart of the operation in the second embodiment of the present invention.

  In the operation of the figure, steps 101 to 204 are the same as those in the flowchart of FIG.

  Step 205) The input / output unit 10 acquires the satisfaction level and outputs it to the display control unit 50. When the acquired satisfaction is high, the display control unit 50 ends the process. When the degree of satisfaction is low, the search result changing unit 70 is instructed to change the search result.

  Step 206) The search result changing unit 70 reads the original information of the search result from the search result storage unit 40, and extracts features.

  Step 207) Based on the extracted features, the search result changing unit 70 changes the search result displayed on the user terminal 2 by a method described later, and displays the search result on the user terminal 2 again via the input / output unit 10. To do.

  Next, when the search result display is changed based on the extracted features, the following method can be specifically considered as the change method.

  (1) Sort the search results based on the characteristics of the original information according to the degree of satisfaction.

  For example, information having characteristics similar to those of the original information is displayed at the lower level. An example is shown in FIG. It is assumed that the satisfaction level is low by browsing the “Wine Sales” page from the search result of FIG. Then, “sales” is extracted as a feature from the “wine sale” page, and search results having the feature (item numbers 1, 3, and 8 in FIG. 4 are displayed in lower 8, 9, and 10).

  (2) Filter the search results based on the characteristics of the original information according to the degree of satisfaction.

  For example, information having characteristics similar to those of the original information is not displayed. An example is shown in FIG. It is assumed that the satisfaction level is low by browsing the “Wine Sales” page from the result of FIG. Then, “sales” is extracted as a feature from the “wine sale” page, and search results having the features (item numbers 1, 3, and 8 in FIG. 4) are not displayed.

  (3) The search results are grouped based on the characteristics of the original information according to the degree of satisfaction.

  For example, information having features similar to those of the original information are grouped together and displayed in an easy-to-understand manner by color coding. Thus, it is possible to easily skip reading. An example is shown in FIG. It is assumed that the satisfaction level is low by browsing the “Wine Sales” page from the search result of FIG. Then, “sales” is extracted as a feature from the “wine sale” page, and a search result having the feature (item numbers 1, 3, and 8 in FIG. 4) is displayed with a frame indicating the same group. The

  (4) Depending on the degree of satisfaction, the same feature as that of the original information is highlighted in the search result.

  As shown in FIG. 11, it is assumed that the satisfaction level is low by browsing the “wine sales” page from the search result of FIG. Then, “sales” is extracted as a feature from the “wine sales” page, and the feature portion is surrounded by a frame and displayed.

  Next, feature extraction in the first and second embodiments will be described.

  There are various feature extraction methods such as feature keyword generation for text data and feature vector extraction for image data. Among them, for example, when generating characteristic keywords, there are techniques disclosed in Japanese Patent Application Laid-Open Nos. 11-250072 and 11-338869, and in image / video feature extraction, Japanese Patent Application Laid-Open There are techniques disclosed in Japanese Patent No. 160057 and Japanese Patent Laid-Open No. 2003-323437. In addition, there is a technique disclosed in Japanese Patent No. 3537727 for signal feature extraction.

  Also, if these feature extractions are calculated while the user is browsing the original information, there is little time loss. Further, in step 205 described above, nothing is performed when the satisfaction level is high. In this case, the search result is displayed in consideration of the characteristics of the original information in the same manner as when the satisfaction level is low. It is possible to make changes (in this case, information having features similar to those of the original information can be displayed at the top or the features can be highlighted.

  In addition, the operation of the constituent elements of the information search apparatus in FIG. 2 and FIG. 6 in the first and second embodiments described above is constructed as a program and installed in a computer used as the information search apparatus, or is executed. It is possible to distribute through a network.

  In addition, the constructed program can be stored in a portable storage medium such as a hard disk, a flexible disk, or a CD-ROM, and can be installed or distributed in a computer.

  The present invention is not limited to the above-described embodiment, and various modifications and applications can be made within the scope of the claims.

  The present invention is applicable to an information retrieval technique for retrieving information from a database based on conditions such as an input keyword.

It is a principle block diagram of this invention. It is a block diagram of the information search device in the 1st Embodiment of this invention. It is a flowchart of the operation | movement in the 1st Embodiment of this invention. It is a search result when the requirement condition in the first embodiment of the present invention is “wine”. It is a search result at the time of re-searching with the changed request condition in the 1st Embodiment of this invention. It is a block diagram of the information search device in the 2nd Embodiment of this invention. It is a flowchart of the operation | movement in the 2nd Embodiment of this invention. It is an example of the rearrangement of the search result in the 2nd Embodiment of this invention. It is an example of filtering of the search result in the 2nd Embodiment of this invention. It is an example of grouping of the search result in the 2nd Embodiment of this invention. It is an example of the highlight display of the search result in the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Information search apparatus 2 User terminal 10 Input means, input / output part 20 Search means, Search part 30 Database 40 Search result storage means, Search result storage part 50 Display control part 51 1st search result display control means 52 2nd search Result display control means 60 Request condition generation means, request condition generation section 70 Search result change section

Claims (8)

An information search device that searches a database for information that matches an input search condition and displays a search result list,
Input means for receiving input of the search condition, the selected search result and satisfaction from the user terminal;
Search means for searching the database based on the search condition, and storing a search result item and the original information in a search result storage means;
The search result items by the search means are displayed in a list on the user terminal, the user is allowed to select one search result item, the original information corresponding to the search result item selected by the user is displayed, First search result display control means for inputting
When the satisfaction level is low, the original information is read from the search result storage unit, a feature of the original information is extracted, and a new requirement condition is generated based on the feature;
Second search result display control means for displaying the search result re-searched by the search means based on the new request condition on the user terminal again;
An information retrieval apparatus comprising: The request condition generation means includes:
The information search apparatus according to claim 1, further comprising means for subtracting the previous period feature from the original information having a low satisfaction level as the new requirement condition when the satisfaction level is low. An information search device that searches a database for information that matches an input search condition and displays a search result list,
Input means for receiving input of the search condition, the selected search result and satisfaction from the user terminal;
Search means for searching the database based on the search condition, and storing a search result item and the original information in a search result storage means;
The search result items by the search means are displayed in a list on the user terminal, the user is allowed to select one search result item, the original information corresponding to the search result item selected by the user is displayed, First search result display control means for inputting
If the satisfaction level is low, the original information is read from the search result storage means, the characteristics of the original information are extracted, and the display change means for changing the display of the search results displayed on the user terminal;
Second search result display control means for displaying the search result whose display has been changed again on the user terminal;
An information retrieval apparatus comprising: The display changing means includes
4. The information search apparatus according to claim 3, further comprising means for rearranging the search results based on characteristics of the original information displayed on the user terminal in the first search result display control means according to the satisfaction. The display changing means includes
4. The information search apparatus according to claim 3, further comprising means for filtering the search result based on the feature of the original information displayed on the user terminal by the first search result display control means in accordance with the satisfaction level. The display changing means includes
4. The information search apparatus according to claim 3, further comprising means for grouping the search results based on characteristics of the original information displayed on the user terminal in the first search result display control means according to the satisfaction. . The display changing means includes
A means for changing the first search result display control means to highlight the feature portion of the search result based on the feature of the original information displayed on the user terminal in the first search result display control means according to the satisfaction level. Item 4. The information search device according to Item 3.   An information search program for causing a computer to function as each means constituting the information search apparatus according to claim 1.

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