JP2009054079A - Information retrieval system and information retrieval program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information retrieval system and an information retrieval program, which associate related information generated on the basis of at least part of a retrieval condition in a retrieval executed by a user in the past with information to be registered when the user registers the information to be retrieved. <P>SOLUTION: The retrieval condition inputted by the user is acquired. Information corresponding to the retrieval condition is retrieved from among question information 62. A retrieval result is presented to the user who has inputted the retrieval condition. Retrieval condition information 88 based on the retrieval condition inputted by the user is stored. The question information 62 inputted by the user is stored. At least part of the retrieval condition information 88 based on the retrieval condition inputted by the user who has inputted the question information 62 is read. Related information based on the read retrieval condition is stored in association with the question information 62. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information search system and an information search program.

  A question and answer search system that stores information indicating a question and information indicating an answer to the question in association with each other and stores the information as search target information so that the user can search for the search target information to share knowledge in the company or the like There is.

  For example, in Patent Literature 1, when a questioner is recorded, the content information of the question is stored in association with information such as the user ID and contact information of the questioner, and the respondent is identified from the stored question information. A system that quickly accumulates and uses technical information by limiting the range that can be browsed is disclosed.

  Patent Document 2 discloses a system that outputs search results for information such as questions and answers after increasing the priority of information related to a provider of information such as questions and answers that the searcher has referred to so far. It is disclosed.

  When related information such as a keyword is stored in association with search target information in such a question answer search system, for example, search target information using a keyword as a search condition can be searched.

Note that storing related information in association with search target information makes it possible to search for search target information using a keyword as a search condition, for example, not only in the question answer search system but also in general information search systems. .
JP 2002-373096 A JP 2005-353083 A

  In order to store the related information in the information search system in association with the search target information, an operation for registering the related information is required.

  In the present invention, when information to be searched by a user is registered, information search for associating the information to be registered with related information generated based on at least a part of the search conditions of the search executed by the user in the past. It is an object to provide a system and an information retrieval program.

  The invention according to claim 1 is an information search system, wherein search condition acquisition means for acquiring a search condition input by a user, and information corresponding to the search condition acquired by the search condition acquisition means, A search unit that searches from among a plurality of search target information stored in the search target information storage unit and presents the search condition to the user, and stores the search condition acquired by the search condition acquisition unit Search condition storage means for receiving, first information input by a user, search target information receiving means for storing the received first information as search target information in the search target information storage means, When the search target information receiving means receives the first information, at least a part of the search conditions input by the user who has input the received first information. The input search condition reading means read from the search condition storage means, and the second information related to the first information is generated based on the search conditions read by the input search condition read means, and generated. And related information storage means for storing the second information in association with the first information.

  The invention according to claim 2 is an information search program, wherein search condition acquisition means for acquiring a search condition input by a user, and search for information corresponding to the search condition acquired by the search condition acquisition means Search means for searching among a plurality of search target information stored in the target information storage device and presenting the search condition to the user, and the search condition acquired by the search condition acquisition means in the storage unit Search condition storage means for storing, first information input by a user, search target information receiving means for storing the received first information as the search target information in the search target information storage device, the search When the target information accepting unit accepts the first information, at least one of the search conditions inputted by the user who inputted the accepted first information. The input search condition reading means for reading out from the search conditions stored by the search condition storage means, and related to the first information based on the search conditions read by the input search condition read means Second information to be generated, and the computer is caused to function as related information storage means for storing the generated second information in association with the first information in a storage unit.

  The invention according to claim 3 is the information search program according to claim 2, wherein the search condition acquisition means acquires the search condition and an identifier of a user who inputs the search condition, and the search The condition storage means stores the identifier of the user who has input the search condition in association with the search condition acquired by the search condition acquisition means, and the search target information reception means inputs the information and the information. Based on the identifier received by the search target information accepting means and the identifier stored by the search information storage means. At least a part of the search conditions stored by the storage means is selected and read out.

  The invention according to claim 4 is the information search program according to claim 2 or 3, wherein the input search condition reading means inputs the first information after the search condition is input. Based on the time until, at least a part of the search conditions stored by the search condition storage means is selected and read out.

  The invention according to claim 5 is the information search program according to any one of claims 2 to 4, wherein the search means performs the search condition based on the second information stored by the related information storage means. The search target information corresponding to the search condition acquired by the acquisition means is searched.

  The above program can also be stored in a computer-readable information storage medium.

  According to the first and second aspects of the invention, when registering information to be searched by a user, the information to be registered is based on at least a part of search conditions for a search executed by the user in the past. Related information generated in this way.

  According to the invention described in claim 3, based on the identifier of the user input by the user, at least a part of the search conditions of the search executed by the user in the past can be selected and read out.

  According to the fourth aspect of the present invention, the search condition stored in association with the search target information is stored in the past based on the time from when the search condition is input until the first information is input. It is possible to select and read out at least a part of the search conditions of the search executed in the above.

  According to the fifth aspect of the present invention, the search target information can be searched based on the second information stored in association with the search target information.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

  As illustrated in the network configuration diagram of FIG. 1, a question answer search system 10 according to an example of this embodiment includes a question answer search device 12 and a plurality of user terminals (clients) 14 (14-1 to 14-n). It is comprised including. The question answer search device 12 and the client 14 are connected to a network 16 such as a local area network (LAN), and the question answer search device 12 and the client 14 can communicate with each other. Yes.

  The client 14 is composed of a known personal computer including a control device such as a CPU, a storage device such as a hard disk, an output device such as a display, an input device such as a keyboard, and a communication device such as a network board. Further, a known web browser is installed in the client 14.

  FIG. 2 is a diagram illustrating an example of a hardware configuration of the question / answer search device 12 according to the present embodiment.

  The question answer search device 12 includes a control unit 20, a storage unit 22, and a communication unit 24. The control unit 20, the storage unit 22, and the communication unit 24 are connected via a bus 26.

  The control unit 20 is a program control device such as a Central Processing Unit (CPU), and operates according to a program stored in the storage unit 22.

  The storage unit 22 is a storage element such as a Random Access Memory (RAM) or a hard disk. The storage unit 22 stores a program executed by the control unit 20. It also operates as a work memory for the control unit 20.

  The communication unit 24 communicates with the client 14 and the like.

  A question / answer search program, which is a Web application, is installed in the question / answer search device 12, and this question / answer search program is executed by a control unit 20 such as a CPU included in the question / answer search device 12. The question answer search program is supplied to the question answer search device 12 via a computer-readable information transmission medium such as a CD-ROM or DVD-ROM, or via a communication network such as the Internet.

  The question answer search device 12 is also installed with HTTP Daemon (HTTPD). Therefore, by starting a web browser on the client 14 and accessing the question answer search program from there, various screens can be displayed on an output device such as a display provided in the client 14 via the web browser. It is like that.

  Next, various screens displayed and output by the question / answer search device 12 on a display provided in the client 14 will be described.

  FIG. 3 is a diagram illustrating an example of a search screen displayed on a display provided in the client 14. The search screen is a screen for the user to input search conditions for searching for questions and answers stored in the storage unit 22 in the question / answer search device 12. As shown in FIG. 3, the search screen includes a search form 30, a search button 32, and a question registration screen display button 34.

  FIG. 4 is a diagram illustrating an example of a search result display screen displayed on the display provided in the client 14. The question result list display screen is a screen for the user to browse a list of search results corresponding to the search conditions input via the search screen shown in FIG. As shown in FIG. 4, the search result display screen includes a search result table 36 on which search results are displayed, a question answer reference button 38, a re-search button 40, and a question registration screen display button 34. The search result table 36 is a table scrolled by the scroll bar 42, and the search result is displayed. The question answer reference button 38 is associated with each search result.

  FIG. 5 is a diagram illustrating an example of a question answer display screen displayed on a display provided in the client 14. The question answer display screen is a screen for the user to browse information related to questions and answers, such as answers to the questions displayed on the question result list display screen. As shown in FIG. 5, the question answer display screen includes a question display unit 44, an answer display unit 46, a search result display screen display button 48, and a question registration screen display button 34.

  FIG. 6 is a diagram illustrating an example of a question registration screen displayed on a display provided in the client 14. The question registration screen is a screen for the user to register a new question in the question answer search system 10. As shown in FIG. 6, the question registration screen includes a question registration form 50 and a question transmission button 52.

  FIG. 7 is a diagram illustrating an example of an answer registration screen displayed on a display provided in the client 14. The answer registration screen is a screen for a user in charge of answering a question registered in the question answer search system 10 to register in the question answer search system 10. As shown in FIG. 7, the answer registration screen includes a question ID display section 54, a question content display section 56, an answer registration form 58, and an answer transmission button 60.

  Next, information stored in the storage unit 22 in the question answer search device 12 will be described.

  FIG. 8A is a diagram illustrating an example of the question information 62 stored in the storage unit 22 in the question answer search device 12. In this embodiment, the question information 62 includes a question identifier (question ID) 64, question date information 66, questioner information 68, question sentence information 70, and a question word weight vector 72, as shown in FIG. It is out. In the present embodiment, the question information 62 plays a role as search target information to be searched by the user.

  FIG. 8B is a diagram showing an example of answer information 74 stored in the storage unit 22 in the question answer search device 12. In the present embodiment, as shown in FIG. 8B, the answer information 74 includes an answer identifier (answer ID) 76, an answer corresponding question identifier (answer corresponding question ID) 78, answer date information 80, answerer information 82, Answer sentence information 84 and answer word weight vector 86 are included.

  FIG. 8C is a diagram illustrating an example of the search condition information 88 stored in the storage unit 22 in the question answer search device 12. In this embodiment, as shown in FIG. 8C, the search condition information 88 includes a search identifier (search ID) 90, search date information 92, searcher information 94, search condition sentence information 96, search condition word weight vector. 98 is included.

  FIG. 8D is a diagram illustrating an example of the search related information 100 stored in the storage unit 22 in the question answer search device 12. In the present embodiment, the search related information 100 includes a search related information identifier (search related information ID) 102, a search related information corresponding question identifier (search related information corresponding question ID) 104, a search, as shown in FIG. Related information word weight vector 106 is included. In this embodiment, the search related information 100 plays a role as related information based on the search condition stored in the storage unit 22 in association with the question information 62 (search target information) by the search related information corresponding question ID 104.

  In FIG. 8, each of the above information is expressed in a table format, but it is not necessary that each information is stored in the storage unit 22 in the question answer search device 12 in a table structure.

  Moreover, specific numerical values such as the times shown in the question date information 66, the answer date information 80, and the search date information 92 shown in FIG. 8 are examples, and are not limited to these values.

  Based on the description of the various screens provided by the question answer search device 12 and the information stored in the storage unit 22 in the question answer search device 12, the processing by the question answer search device 12 will be described below.

  When the user accesses the question / answer search device 12 from the client 14, the control unit 20 in the question / answer search device 12 displays a search screen shown in FIG. 3 on an output device such as a display provided in the client 14 with a Web browser. Output via. Of course, before displaying this search screen, the question and answer search device 12 may perform a user authentication process.

  When the search screen shown in FIG. 3 is displayed on a display or the like provided in the client 14, when a user inputs a question (search condition) to be searched for in the search form 30 and presses the search button 32, The client 14 transmits input search condition information indicating a question (search condition) input by the user and user information such as an identifier (user ID) of the user who input the question to the question answer search apparatus 12. To do. FIG. 3 shows an example of a search using a natural sentence. Needless to say, a search using a word or the like (keyword search) may be performed.

  And the control part 20 in the question answer search apparatus 12 is input search condition information which shows the question (search condition) input by the user via the communication part 24, a user identifier (user ID), etc. User information.

  Then, information corresponding to the search condition indicated by the input search condition information acquired by the control unit 20 in the question answer search device 12 is searched from the question information 62 (search target information) stored in the storage unit 22. .

  Specifically, for example, first, based on the input search condition information, using a known weighting method such as term frequency-inverse document frequency (tf-idf), the search condition word A weight vector 98 is generated. Then, the search condition word weight vector 98 is compared with the search related information word weight vector 106 included in the search related information 100 shown in FIG. 8D, and the similarity is determined according to a predetermined calculation formula. Is calculated. Then, for example, the search related information 100 including the search related information word weight vector 106 having a similarity higher than a predetermined threshold is searched for the question information 62 associated by the search related information corresponding question ID 104. And the control part 20 in the question answer search apparatus 12 produces | generates the information which shows the search result display screen shown in FIG. 4 based on the searched question information 62, and the search result display screen was provided in the client 14. FIG. Output to an output device such as a display via a Web browser. The search results included in the search result table 36 in the search result display screen correspond to the searched question information 62, respectively. Thus, the question answer search device 12 presents the searched question information 62 (search target information) to the user who has input the question (search condition) to be searched.

  At this time, the control unit 20 in the question answer search device 12 associates user information such as the identifier (user ID) of the user who has input the search condition with the previously acquired input search condition information. , And stored in the storage unit 22 as search condition information 88 shown in FIG.

  Specifically, as shown in FIG. 8C, the search ID 90, search date information 92 indicating the date related to the search process (for example, the date when the search condition is input), searcher information 94 (acquired usage) Search condition sentence information 96 (corresponding to the acquired input search condition information), and search condition information 88 including a search condition word weight vector 98 generated based on the input search condition information. Stored in the unit 22.

  When the user presses the question registration screen display button 34 while the search screen shown in FIG. 3 is displayed on a display or the like provided in the client 14, the client 14 requests to display the question registration screen shown in FIG. Is transmitted to the question answer search device 12. Then, the control unit 20 in the question answer search device 12 acquires a request for displaying a question registration screen, and displays the question registration screen shown in FIG. 6 on an output device such as a display provided in the client 14 via a Web browser. Output.

  When the search result display screen shown in FIG. 4 is displayed on a display or the like provided in the client 14, when the user presses the question answer reference button 38 associated with the search result indicating the question to be browsed, The client 14 transmits information indicating the question ID 64 of the question associated with the search result to the question answer search device 12. Then, the control unit 20 in the question answer search device 12 acquires information indicating the question ID 64 via the communication unit 24. Based on the question information 62 including the question ID 64 (see FIG. 8A) and the answer information 74 including the answer corresponding question ID 78 corresponding to the question ID 64 (see FIG. 8B), FIG. The information indicating the question answer display screen is generated, and the question answer display screen is output to an output device such as a display provided in the client 14 via the Web browser. Here, information corresponding to the questioner information 68 and the question sentence information 70 included in the question information 62 is displayed in the question information question display unit 44, and information corresponding to the answerer information 82 and the answer sentence information 82 included in the answer information 74 is displayed. Is output to the answer display section 46.

  When the user presses the re-search button 40 while the search result display screen shown in FIG. 4 is displayed on a display or the like provided in the client 14, the client 14 sends a re-search request to the question answer search device. 12 to send. Then, the control unit 20 in the question answer search device 12 acquires a re-search request, and outputs a search screen shown in FIG. 3 to an output device such as a display provided in the client 14 via a Web browser.

  When the user presses the question registration screen display button 34 while the search result display screen shown in FIG. 4 is displayed on a display or the like provided in the client 14, the client 14 displays the question registration shown in FIG. A screen display request is transmitted to the question answer search device 12. Then, the control unit 20 in the question answer search device 12 acquires a request for displaying a question registration screen, and displays the question registration screen shown in FIG. 6 on an output device such as a display provided in the client 14 via a Web browser. Output.

  When the user presses the search result display screen display button 48 while the question answer display screen shown in FIG. 5 is displayed on a display or the like provided in the client 14, the client 14 displays the search result display shown in FIG. A screen display request is transmitted to the question answer search device 12. Then, the control unit 20 in the question answer search device 12 generates information indicating the search result display screen shown in FIG. 4 and outputs the search screen to an output device such as a display provided in the client 14 via a Web browser. To do.

  When the user presses the question registration screen display button 34 while the question answer display screen shown in FIG. 5 is displayed on a display or the like provided in the client 14, the client 14 registers the question as shown in FIG. A screen display request is transmitted to the question answer search device 12. Then, the control unit 20 in the question answer search device 12 acquires a request for displaying a question registration screen, and displays the question registration screen shown in FIG. 6 on an output device such as a display provided in the client 14 via a Web browser. Output.

  When the question registration screen shown in FIG. 6 is displayed on a display or the like provided in the client 14, when the user inputs a question into the question registration form 50 and presses the question transmission button 52, the client 14 The registered question information indicating the question (registered question) input by the user and the user information such as the identifier (user ID) of the user who input the question are transmitted to the question answer searching device 12.

  Then, the control unit 20 in the question answer search device 12 includes registration question information indicating a question (registration question) input by the user via the communication unit 24, a user identifier (user ID), and the like. Acquire user information.

  And the registration question information which the control part 20 in the question answer search apparatus 12 acquired is memorize | stored in the memory | storage part 22 as the question information 62 (refer Fig.8 (a)) shown to Fig.8 (a).

  Specifically, as shown in FIG. 8A, the question ID 64, the question date information 66 indicating the date and time related to the question registration process (for example, the date and time when the question is input), the questioner indicating the user ID and the like. Information 68 (corresponding to the acquired user information), question sentence information 70 (corresponding to the acquired registered question information), and question information 62 including the question word weight vector 72 is stored in the storage unit 22. The question word weight vector 72 is generated by the control unit 20 in the question answer search device 12 using a known weighting method such as tf-idf based on the acquired registered question information.

  In this way, the control unit 20 in the question answer search device 12 accepts a question input by the user and stores it in the storage unit 22 as question information 62 (search target information). In the present embodiment, user information indicating the identifier (user ID) of the user who has input the question information 62 (search target information) is also accepted.

  At this time, the control unit 20 in the question answer search device 12 generates the search related information 100 (see FIG. 8D). Details of the processing for generating the search related information 100 will be described later.

  Then, the control unit 20 in the question answer search device 12 outputs information indicating a question acceptance completion screen (not shown) to an output device such as a display provided in the client 14 via a Web browser.

  When the user of the question answer search device 12 who is an answerer accesses the question answer search device 12 from the client 14, the answer registration screen shown in FIG. 7 is displayed. Of course, before displaying this answer registration screen, the question answer search apparatus 12 may perform an authentication process for the user who is the person in charge of answering.

  On the answer registration screen, the question ID for the question to be answered by the person in charge of answering is displayed on the question ID display unit 54 and the question content is displayed on the question content display unit 56. Based on the question information 62 and the answer information 74 stored in the storage unit 22, the control unit 20 in the question answer search device 12 stores information indicating the unanswered question information 62. The information is generated and output to an output device such as a display provided in the client 14 via a Web browser.

  When a user who is an answerer inputs an answer to the answer registration form 58 and presses the answer transmission button 60, the client 14 has registered answer information indicating an answer input by the user who is an answerer, User information such as a question ID 64 regarding the answered question and an identifier (user ID) of a user who is the answerer who has input this answer is transmitted to the question answer search device 12.

  Then, the control unit 20 in the question / answer search device 12 uses the registration answer information indicating the answer input by the user via the communication unit 24, the question ID 64 for the answered question, and the answer person in charge. User information such as a user identifier (user ID).

  And the registration reply information which the control part 20 in the question answer search apparatus 12 acquired is memorize | stored in the memory | storage part 22 as the reply information 74 shown in FIG.8 (b).

  Specifically, as shown in FIG. 8B, an answer ID 76, an answer corresponding question ID 78 (corresponding to the acquired question ID 64), and a date and time related to the answer registration process (for example, the date and time when the answer is input) are shown. Answer date / time information 80, answerer information 82 indicating a user ID, etc. (corresponding to the acquired user information), answer sentence information 84 (corresponding to the acquired registered answer information), and answer word weight vector 86 Contains. The answer word weight vector 86 is generated by the control unit 20 in the question answer search device 12 using a known weighting method such as tf-idf based on the acquired registered answer information.

  In this way, the question information 62 and the answer information 74 are associated and stored in the storage unit 22.

  And the control part 20 in the question answer search apparatus 12 outputs the information which shows an answer reception completion screen (not shown) to output devices, such as a display with which the client 14 was equipped, via a web browser.

  Next, the control unit 20 in the question answer search device 12 generates registration related information (see FIG. 8D) to be performed when the registered question information is acquired and stored as the question information 62 in the storage unit 22. Details of an example of the processing to be performed will be described with reference to the flowchart shown in FIG.

  First, the control unit 20 in the question answer search device 12 obtains searcher information 94 (user ID and the like) corresponding to the questioner information 68 (user ID and the like) included in the question information 62 stored in the storage unit 22. The search condition information 88 to be included is selected (S1001). That is, the control unit 20 in the question answer search device 12 is based on the identifier of the user who inputs the question information 62 (search target information) and the identifier of the user stored in the storage unit 22. At least a part of the search condition information 88 stored in is selected.

  Of the search condition information 88 selected in the process shown in S1001, the question date information 66 included in the question information 62 stored in the storage unit 22 indicates the date indicated by the search date information 92 included in the search condition information 88. The search condition information 88 whose time until the date is within a predetermined time (for example, 1 hour) is selected and read from the storage unit 22 (S1002). In this manner, the control unit 20 in the question answer search device 12 selects the search condition information 88 based on the time from when the search condition is input until the question information 62 (search target information) is input. ,read out.

  Then, the vector sum of the average of the vectors indicated by the search condition word weight vector 98 included in the read search condition information 88 and the vector indicated by the question word weight vector 72 included in the question information 62 stored in the storage unit 22. And the search related information word weight vector 106 is calculated (S1003).

  FIG. 10 shows an example of a specific method for calculating the search related information word weight vector 106. First, the average weight of each word included in the search condition word weight vector 98 selected and read by the process shown in S1001 and the process shown in S1002 shown in FIG. 10A is calculated. (For example, 0.02 is calculated for the word t1, 0.08 is calculated for the word t2, and 0.02 is calculated for the word t6).

  Then, the sum of the weight of each word included in the calculated search condition word weight vector 98 and the weight of each word included in the question word weight vector 72 included in the question information 62 shown in FIG. (For example, 0.02 is calculated for the word t1, 0.08 is calculated for the word t2, and 0.12 is calculated for the word t6).

  Then, a value obtained by dividing the calculated sum by 2 is calculated (for example, 0.01 is calculated for the word t1, 0.04 is calculated for the word t2, and 0.06 is calculated for the word t6). In this way, the control unit 20 of the question answer search device 12 calculates the search related information word weight vector 106 shown in FIG.

  According to this calculation method, the weight of the question word weight vector 72 becomes heavy in calculating the search related information word weight vector 106. In connection with this, the weight of the search content of the search condition information 88 most recently registered that is considered to be close to the content of the question information of the finally registered question information 62 becomes heavy.

  Note that the search condition information 88 shown in FIG. 10A, the question information 62 shown in FIG. 10B, and the search related information 100 shown in FIG. 10C are included for convenience of explanation. Only a part of the information to be displayed is shown.

  The above calculation method is an example of a method for calculating the search related information word weight vector 106, and the search related information word weight vector 106 may be calculated by other methods.

  Further, specific examples such as the weight of each word included in the question word weight vector 72, the answer word weight vector 86, the search condition word weight vector 98, and the search related information word weight vector 106 shown in FIG. 8 and FIG. Numerical values are examples, and are not limited to these numerical values.

  Then, the search related information 100 including the search related information ID 102, the search related information corresponding question ID 104 (corresponding to the question ID 64 included in the question information 62 stored in the storage unit 22), and the search related information word weight vector 106 is generated. And stored in the storage unit 22 (S1004).

  Thus, when the control unit 20 in the question answer search device 12 receives the question information 62 (search target information), the search condition input by the user who has input the received question information 62 (search target information). At least a part of the information 88 is read from the storage unit 22. Then, the search related information 100 (related information) based on the search condition indicated by the read search condition information 88 is stored in the storage unit 22 in association with the question information 62 (search target information).

  In the present embodiment, using the search related information 100 (related information) stored in the storage unit 22, the control unit 20 in the question answer search device 12 searches for information corresponding to the acquired input search condition information. To do. Then, based on the searched question information 62, information indicating the search result display screen shown in FIG. 4 is generated, and the search result display screen is output to an output device such as a display provided in the client 14 via a Web browser. To do.

  In this way, the user's troublesomeness (such as the trouble of registering the related information) when the related information is stored in association with the search target information is reduced.

  The present invention is not limited to the above embodiment.

  In the present embodiment, in both the process shown in S1001 and the process shown in S1002, at least a part of the search condition information 88 input by the user who has input the question information 62 (search target information) to be received is stored in the storage unit 22. However, one of the processes may be omitted. Further, at least a part of the search condition information 88 input by the user who has input the question information 62 (search target information) to be received is read from the storage unit 22 by a method other than the process shown in S1001 or the process shown in S1002. May be.

  For example, the query information 62 (search target information) is input after the search condition is input by a method other than the processing shown in S1002, such as selecting the search condition information 88 after the time when the user logged in or accessed. The search condition information 88 may be selected and read based on the time until.

  Alternatively, for example, at least a part of the search condition information 88 registered in the same session as the registration process of the question information 62 (search target information) may be read from the storage unit 22 using a session ID or the like.

  In the present embodiment, the question information 62 is handled as the search target information. However, the search target information may include the answer information 74, or only the answer information 74 may be set as the search target information. In the processing shown in S1003, the search related information word weight vector 106 may be calculated based on the answer word weight vector 86.

  Further, the present invention may be applied not only to questions and answers but also to other types of search target information. That is, the present invention may be applied not only to the question answer search system but also to the entire information search system.

  The search target information may be information other than character information such as image information associated with related information that can be searched by a search sentence.

  In the present embodiment, the search related information 100 is used for search processing. However, for example, the search related information 100 may be used for other purposes such as organizing and classifying search target information.

  In addition, a distributed question answer search system in which a storage unit 22 in which search target information is stored is provided in another computer outside the question answer search system 10 and communicates with the question answer search device 12 via the communication unit 24. The present invention may be applied to.

  Further, the question / answer search device 12 may be configured by one casing or a plurality of casings.

  The question answer search program is not limited to a Web application. For example, the question answer search device 12 may include a display and various screens may be displayed on the display. Various screens generated by the question / answer search program may be displayed on the screen of an application other than the Web browser operating on the client 14.

It is a figure which shows the network structural example of the question answer search system which concerns on one Embodiment of this invention. It is a figure which shows the hardware structural example of the question answer search apparatus which concerns on one Embodiment of this invention. It is a figure which shows an example of a search screen. It is a figure which shows an example of a search result display screen. It is a figure which shows an example of a question answer display screen. It is a figure which shows an example of a question registration screen. It is a figure which shows an example of an answer registration screen. It is a figure which shows an example of the information memorize | stored in the memory | storage part in a question answer search apparatus. It is a figure which shows an example of the flow of the search relevant information generation process performed with a question answer search system. It is a figure which shows an example of the specific calculation method of the word weight vector for a search.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Question answer search system, 12 Question answer search device, 14 User terminal (client), 16 Network, 20 Control part, 22 Storage part, 24 Communication part, 26 Bus, 30 Search form, 32 Search button, 34 Question registration screen Display button, 36 Search result table, 38 Question answer reference button, 40 Re-search button, 42 Scroll bar, 44 Question display part, 46 Answer display part, 48 Search result display screen display button, 50 Question registration form, 52 Question send button 54 Question ID display part 56 Question content display part 58 Answer registration form 60 Answer send button 62 Question information 64 Question identifier (question ID) 66 Question date information 68 Questioner information 70 Question sentence information 72 Question word weight vector, 74 answer information, 76 answer identifier (answer ID), 78 Answer corresponding question identifier (answer answer question ID), 80 Answer date information, 82 Answerer information, 84 Answer text information, 86 Answer word weight vector, 88 Search condition information, 90 Search identifier (search ID), 92 Search date information, 94 Searcher information, 96 Search condition sentence information, 98 Search condition word weight vector, 100 Search related information, 102 Search related information identifier (search related information ID), 104 Search related information corresponding question identifier (search related information) Corresponding question ID), 106 Search related information word weight vector.

Claims (5)

A search condition acquisition means for acquiring a search condition input by a user;
Information corresponding to the search condition acquired by the search condition acquisition unit is searched from a plurality of search target information stored in the search target information storage unit and presented to the user who has input the search condition. Search means;
Search condition storage means for storing the search conditions acquired by the search condition acquisition means;
Search target information receiving means for receiving first information input by a user and storing the received first information as the search target information in the search target information storage means;
When the search target information receiving unit receives the first information, at least a part of the search conditions input by the user who has input the received first information is stored in the search condition storage unit. Input search condition reading means to read from,
Second information related to the first information is generated based on the search condition read by the input search condition reading means, and the generated second information is stored in association with the first information. Related information storage means;
An information retrieval system comprising: Search condition acquisition means for acquiring the search condition input by the user,
Information corresponding to the search condition acquired by the search condition acquisition unit is searched from a plurality of search target information stored in the search target information storage device and presented to the user who has input the search condition. Search means,
Search condition storage means for storing the search condition acquired by the search condition acquisition means in a storage unit,
Search target information receiving means for receiving first information input by a user and storing the received first information as the search target information in the search target information storage device;
When the search target information receiving unit receives the first information, at least a part of the search conditions input by the user who has input the received first information is stored in the search condition storage unit. Input search condition reading means for reading out from the search conditions stored by
Second information related to the first information is generated based on the search condition read by the input search condition reading means, and the generated second information is stored in association with the first information. Related information storage means to be stored in the section,
An information retrieval program for causing a computer to function as The search condition acquisition means acquires the search condition and an identifier of a user who has input the search condition,
The search condition storage means stores the identifier of the user who has input the search condition in association with the search condition acquired by the search condition acquisition means,
The search target information receiving means receives the information and an identifier of a user who has input the information,
Based on the identifier received by the search target information receiving unit and the identifier stored by the search information storage unit, the input search condition reading unit stores the search condition stored by the search condition storage unit. Select and read at least some of them,
The information search program according to claim 2, wherein: The input search condition reading means stores at least a part of the search conditions stored by the search condition storage means based on a time from the input of the search condition to the input of the first information. Select and read,
The information search program according to claim 2 or 3, characterized in that. The search means searches the search target information corresponding to the search condition acquired by the search condition acquisition means, based on the second information stored by the related information storage means.
The information search program according to claim 2, wherein the information search program is an information search program.

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