JP2006092251A - Keyword addition support device, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a keyword addition support device, a keyword addition support method, and a keyword addition support program for adding an optimum keyword and reducing labor in addition of the keyword. <P>SOLUTION: Information about a search object is stored in a storage part 1. A search processing part 2 searches for information including a search word by using the search word given by an instruction part 3. A search result is displayed in a display part 4. A user instructs addition of a keyword to respective information by the instruction part 3 when the search result is displayed. In receipt of the instruction, a keyword addition processing part 5 adds the search word used in search to information as a keyword. In this way, the user can easily add the optimum keyword. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to information retrieval technology.

  There is a search method using a keyword as a search method for extracting desired information from a large amount of information. In this method, a keyword is assigned in advance to information to be searched, and information to which a keyword that matches or is similar to the search key input at the time of search is assigned as a search result. Therefore, since only the keywords assigned to the information to be searched need be referred to at the time of search, the search can be performed at high speed.

However, in order to perform a keyword search, it is necessary to assign appropriate keywords to each information in advance. For example, in Patent Document 1, a keyword is designated and registered from among displayed documents. The task of assigning such keywords takes time in the following points.
・ Efforts for selecting keywords to be assigned ・ Operations on the system for assigning keywords to information As described in Patent Document 2, for example, keywords are specified and registered during document creation Although it is also considered, the amount of work is not reduced so much.

  Therefore, a method for automatically assigning keywords has been considered. For example, in Patent Document 3 and Patent Document 4, keywords are extracted from a document and added to the document. However, in the method of automatically extracting a keyword, there is a possibility that a certain keyword is given to undesired information or an undesired keyword is given to information. In Patent Document 4, related keywords are also given, and the possibility is further increased. When an inappropriate keyword is assigned, when searching with a keyword from a large amount of information, information that is really necessary may be buried in other unimportant information.

  For example, as described in Patent Document 5, it is considered to use a phrase at a specific position as a keyword based on a format. Further, as described in Patent Document 6 and Patent Document 7, it is considered to use a title as a specific position and extract a keyword from the title. According to these technologies, it is possible to assign keywords more securely than extracting keywords from the entire document, but on the other hand, there are few keywords that can be extracted just by extracting from the title, etc., and there is no omission in the search. It can happen.

  Further, for example, Patent Document 8 describes a technique for performing a full-text search using a search key when the search key is not assigned as a keyword, and assigning the search key as a keyword to the document if the search key exists in the document. ing. Patent Document 9 also describes that information is searched with a search key when the search key is not a keyword, and the search key is assigned as a keyword. In these cases, the keyword is automatically extracted except that the search time can be shortened.

  Furthermore, as described in Patent Document 10 and Patent Document 11, for example, there is a method of assigning a keyword depending on the number of times of reference to each piece of information and the number of times of access. There is a problem that search and reference need to be performed and there is no immediacy.

  As described above, although it is possible to reduce time and effort by automatically assigning keywords, there is a problem that search efficiency and search accuracy are reduced due to inappropriate keyword assignment.

JP-A-1-269125 JP 61-68668 A JP-A 61-262924 Japanese Patent Laid-Open No. 5-257979 Japanese Patent Laid-Open No. 2-72468 JP-A-4-241673 JP 63-137326 A JP 63-251837 A Japanese Patent Laid-Open No. 03-257669 JP 2003-141155 A JP-A 61-029936

  The present invention has been made in view of the above-described circumstances, and provides a keyword assignment support apparatus, a keyword assignment support method, and a keyword assignment support program that can assign an optimum keyword and reduce the time and effort at the time of keyword assignment. It is intended to provide.

  In the present invention, when a user assigns a keyword to information, the user gives one or more search terms, searches for information including the search terms, and outputs the result to the user. The user instructs the keyword information to be added to the output search result information as necessary. According to this instruction, the search term used in the search is added to the information as a keyword. When a plurality of search terms are given, they can be selectively added to the information as keywords. At this time, it is possible to give a keyword to be given or to select a keyword from a search word that has not been given as a keyword.

  In addition, when a keyword is uniformly assigned to a synonym, a synonym dictionary may be used, and a predetermined word or phrase may be added to information as a keyword from synonyms including a search word. In addition, when searching not only a search word but also a related word related to the search word, the search word is expanded into a related word by a related word dictionary, and information is searched using the search word and the related word. A part or all of the search words and related words existing in the searched information may be added to the information as keywords according to the instructions. Furthermore, it is also possible to use the automatic extraction technique as a keyword with a low priority, and to add a search word as a keyword with a high priority, using the conventional automatic extraction technique.

  According to the present invention, it is possible for a user to appropriately assign a search word (and related word) as a keyword from information searched by a search word (or a related word) given by the user. Since a keyword is added according to the instruction, an appropriate keyword can be assigned. At this time, since the keyword is assigned at the user's discretion, it is possible to assign an appropriate keyword as compared to the case where only automatic keyword addition is performed as in the past, and the keyword is assigned to unimportant information. Or a problem of giving an inappropriate keyword can be reduced. In addition, the user only has to selectively specify information appropriate to give the related word (and related word) as a keyword from the search results, and the keyword can be assigned by a simple operation.

  In addition, since keywords are assigned to information as necessary after the actual search, there is no need to think about keywords to be assigned to information in advance, and the search terms specified in the search conditions can be reused. Since it is given as a keyword, it is possible to reduce the time and effort of inputting a keyword. Moreover, since only the search term which is not provided as a keyword with respect to information is provided as a keyword, it is possible to assign keywords without duplication even with a simple operation. The present invention has various effects as described above.

  FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 is a storage unit, 2 is a search processing unit, 3 is an instruction unit, 4 is a display unit, and 5 is a keyword addition processing unit. The storage unit 1 stores search target information. Further, keywords associated with the information to be searched can also be stored. Of course, the keyword may be stored in another storage means.

  The search processing unit 2 searches the information stored in the storage unit 1 for information including one or more search words given by the instruction unit 3. When a plurality of search terms are given, it is possible to search based on a search condition in which a logical product or a logical sum or negation is mixed as a search condition, which may be given in advance or given from the instruction unit 3 .

  The instructing unit 3 is used by the user to give an instruction. For example, the instructing unit 3 receives an input of a search word performed by the user, an instruction to give a keyword performed after the search, and the like, and passes them to the search processing unit 2 and the keyword addition processing unit 5, respectively.

  The display unit 4 performs various outputs to the user. For example, the information searched by the search processing unit 2 can be displayed and displayed in such a form that a keyword assignment instruction can be given at that time.

  The keyword addition processing unit 5 outputs the information searched by the search processing unit 2 to the display unit 4 and, at the time of the search, according to the keyword addition instruction performed by the instruction unit 3 as necessary for each information. The used search term is added to the information as a keyword. When multiple search terms are used at the time of search, for example, if search is performed using logical product as a search condition, all search terms used are keywords, and if search is performed using logical sum, Of these search terms, the search terms contained in the searched information can be added to the information as keywords. Of course, the user may select a keyword to be added from the instruction unit 3, and the selected search word may be added as a keyword.

  FIG. 2 is a flowchart showing an example of the operation in the embodiment of the present invention. In S11, the instruction unit 3 receives an input of a search word from the user. FIG. 3 is an explanatory diagram of an example of a search word input screen. In the figure, 21 is an input area, and 22 is a search execution button. When inputting the search term, for example, a screen (window) for inputting the search term as shown in FIG. 3 is displayed on the display unit 4, and the user may input the search term in the input area 21. When inputting a plurality of search terms, they may be input separated by a blank or a predetermined delimiter, or may be input as a conditional expression with a logical operator in between. When the user finishes inputting the search word, the user may indicate the search execution button 22. The input search term is passed to the search processing unit 2.

  The search processing unit 2 performs a full-text search on information stored in the storage unit 1 using a search word input from the user by the instruction unit 3, and searches for information that matches the search condition including the search word. In S13, the search result is displayed on the display unit 4. FIG. 4 is an explanatory diagram illustrating an example of a search result display screen. In the example shown in FIG. 4, information names, creators, and update dates are displayed as a list as search results. Further, a keyword addition button is provided on the right side of each search result. The user can instruct addition of a keyword to information by operating this keyword addition button. In this way, it is possible to instruct the addition of a keyword with a simple operation.

  In the example shown in FIG. 4, the document 3 and the document 5 have no keyword addition button. This indicates that the keyword of the search term has already been added to the document 3 and the document 5, and it is not necessary to add the keyword. Thus, by not displaying the keyword addition button for the information in which the search term has already been added as a keyword, the keyword addition status can be identified, and the user gives a useless keyword addition instruction. It can also be made unnecessary.

  In S14, when the user gives an instruction to add a keyword, in S15, the keyword addition processing unit 5 adds all or part of the search terms used in the search in S12 as keywords to the corresponding information. At this time, the search terms already assigned as keywords are excluded and added. In this way, keywords can be assigned to the search results using the search terms based on the user's judgment. Accordingly, it is possible to reduce problems such as adding keywords to unimportant information and adding inappropriate keywords.

  By adding a keyword to information in this way, information can be searched at high speed by keyword search thereafter. At that time, since an appropriate keyword is given according to a user instruction according to the present invention, a highly accurate search can be performed.

  In addition, since it is possible to assign keywords simply by operating the keyword addition button on the screen as shown in FIG. 4, it is possible to greatly reduce the time for keyword assignment, and to easily assign keywords. it can. Note that the search result display screen shown in FIG. 4 is an example, and the search result can be output to the user in an arbitrary display form. For example, a part of the content may be displayed so that the content can be confirmed. In addition, various modifications have been made to user operability, such as allowing keywords to be assigned in a lump, or conversely selecting information that does not have a keyword and lending keywords to other information in a lump. Is possible. Further, for example, a keyword addition screen may be displayed by an instruction separately from the search result display screen, and the keyword addition may be instructed on the screen. At this time, it may be possible to edit a phrase to be added as a keyword on the keyword addition screen. In this case, it is preferable that the search term is presented in a state input in advance as a keyword, and added as a keyword if it is not necessary.

  Further, for example, unlike the example shown in FIG. 4, a keyword addition button may be displayed for information in which a search word is already assigned as a keyword. For example, when multiple keywords can be given with weights, search keywords that already exist as keywords are not given duplicate keywords, but the weights of the search terms already assigned are changed as keywords. Can be configured to.

  FIG. 5 is a block diagram showing a first modification of the embodiment of the present invention. In the figure, 6 is a synonym dictionary. In this modification, an example in which a unified word is assigned to synonyms when a keyword is assigned is shown. The synonym dictionary 6 sets a plurality of synonyms and words to be registered as keywords for those synonyms.

  When registering a search word as a keyword, the keyword addition processing unit 5 refers to the synonym dictionary 6 and determines whether a synonym including the search word is registered. When a synonym is registered, a word registered as a keyword for the synonym is acquired, and the word is added to the information as a keyword.

  As a result, a unified keyword is added to the information for the synonym, so that a search omission caused by the use of the synonym when performing a keyword search after the keyword is assigned can be prevented.

  FIG. 6 is a block diagram showing a second modification of the embodiment of the present invention. In the figure, 7 is a related word dictionary. In this modified example, when searching for information using a search word, an example is also shown in which a related word related to the search word is also searched. The related word dictionary 7 is a collection of words and related words related to the words.

  When the search processing unit 2 receives the search word from the instruction unit 3, the search processing unit 2 refers to the related word dictionary 7 and expands the search word into one or more related words. Then, information is searched using the search term and its related terms. In addition, the keyword addition process part 5 makes the addition thing as a keyword about what exists in the searched information among search words and a related word. The words and phrases used as keywords may not be all of the search words and related words existing in the information, and some of them may be added as keywords as described above.

  By performing the related word search in this way, it is possible to search for information including related words / phrases in addition to the word / phrase inputted as the search word, and to prevent omission of search. Further, not only search terms but also information including related terms can be easily assigned keywords, and the time for assigning keywords can be further reduced.

  FIG. 7 is a block diagram showing a third modification of the embodiment of the present invention. In the figure, 8 is a keyword extraction unit. In this modification, an example in which a conventional automatic keyword extraction technique is used in combination with the present invention is shown. In addition, it is possible to give priority to keywords assigned to information.

  The keyword extraction unit 8 extracts keywords from the information by a conventional keyword automatic extraction technique. The keyword addition processing unit 5 adds a search word as a keyword to the information searched by the search processing unit 2 to the information as a keyword having a high priority, and when the keyword extraction unit 8 extracts it, the priority ranking. It is added to information as a low keyword.

  As a result, the priority is increased for the keyword designated by the user, the priority is lowered for the automatically extracted keyword, and the keyword designated by the user at the time of search is preferentially used. Search can be performed. For example, the present invention can be applied to a system that takes into consideration the priority order using the appearance frequency, or to prioritize highly specialized keywords for each field to be handled.

  Part or all of the configurations described in the above-described embodiments and modifications can be realized by a program that can be executed by a computer. In that case, the program, data used by the program, and the like can be stored in a computer-readable storage medium. A program is stored in a storage medium, and the computer reads the program from the storage medium, or transfers the program to the computer via a network or the like, or the program is installed in the computer in advance, and the computer executes the program. As a result, the above-described functions of the present invention can be executed by a computer.

  Of course, some functions may be configured by hardware, or all may be configured by hardware. In addition, a program that realizes the above functions can be configured integrally with other programs.

It is a block diagram which shows one Embodiment of this invention. It is a flowchart which shows an example of the operation | movement in one Embodiment of this invention. It is explanatory drawing of an example of a search word input screen. It is explanatory drawing of an example of the display screen of a search result. It is a block diagram which shows the 1st modification of one Embodiment of this invention. It is a block diagram which shows the 2nd modification of one Embodiment of this invention. It is a block diagram which shows the 3rd modification of one Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Memory | storage part, 2 ... Search processing part, 3 ... Instruction part, 4 ... Display part, 5 ... Keyword addition process part, 6 ... Synonym dictionary, 7 ... Related word dictionary, 8 ... Keyword extraction part, 21 ... Input area , 22 ... Search execution button.

Claims (9)

  An instruction means for the user to give an instruction, a storage means for storing information to be searched, and a search for searching for information including the search word given by the instruction means from the information stored in the storage means And keyword adding means for outputting the information searched by the search means and adding the search word as a keyword to the information according to an instruction given by the instruction means for each piece of information as necessary. A keyword assignment support apparatus characterized by comprising:   Information to be searched is stored in the storage means, and information including the search word given by the instruction means is searched from the information stored in the storage means and output. In response to an instruction from an instruction unit that is performed as necessary, a keyword assignment support method that adds the search word as a keyword to the information according to the instruction.   Information to be searched is stored in the storage means, and information including a plurality of search words given by the instruction means is searched from the information stored in the storage means and output. A keyword assignment support characterized by receiving an instruction from an instruction unit that is performed on information as necessary, and adding a part or all of the plurality of search words as a keyword to the information according to the instruction Method.   An instruction function for receiving an instruction given by a user to a computer, a search function for searching for information including a search word received by the instruction function from information to be searched stored in a storage means, and the search function And a keyword adding function for adding the search word as a keyword to the information according to an instruction received by the instruction function as needed for each piece of information. Keyword assignment support program.   The search function searches for information using a plurality of search words given from the instruction means, and the keyword addition function is a plurality of instructions specified by the instruction means for the searched information. The keyword assignment support program according to claim 4, wherein a part or all of the search terms are added to the information as keywords.   The keyword adding means adds a predetermined word or phrase from the synonyms including the search word as a keyword to the information using a synonym dictionary containing synonyms. The keyword assignment support program described in 1.   The search function expands the search word into a related word using a related word dictionary containing related words, searches for information using the search word and the related word, and the keyword addition function is searched 6. The keyword assignment support program according to claim 4, wherein the search word and the related word existing in the information are to be added as keywords.   Further, it includes an extraction function for extracting a keyword from the information, wherein the keyword addition function assigns the search word as a keyword with high priority and assigns the keyword extracted by the extraction function as a keyword with low priority. The keyword assignment support program according to claim 4 or 5.   Further, the keyword adding function is configured to use, as keywords, a part or all of the search words received by the instruction function with respect to searched information except for those already given as keywords to the information. The keyword assignment support program according to claim 5, wherein the keyword assignment support program is added to the keyword assignment program.

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