JP2000348042A - Integrated thesaurus preparing device, corrected thesaurus preparing device, information collectable thesaurus preparing device, integrated thesaurus preparing program storage medium, corrected thesaurus preparing program storing medium and information collectable thesaurus preparing program storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an integrated thesaurus preparing device operable at a high speed and a low cost in distributed database environment, a corrected thesaurus preparing device and an each-user thesaurus preparing device capable of dealing with various user's needs, an integrated thesaurus preparing program storage medium for forming and operating these thesaurus preparing device on a computer, a corrected thesaurus preparing program storage medium and an each-user thesaurus preparing program storage medium. SOLUTION: A characteristic thesaurus obtaining means 11-1 obtains database thesauruses 17a, 17b expressing a mutual relation between words in information stored in database 15a and 15b. An integrated thesaurus preparing means 11-2 integrates the obtained thesauruses to prepare an integrated thesaurus 12 expressing a mutual relation between words corresponding to total information stored in a group of database.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thesaurus creation device for creating a thesaurus representing the relationship between words in information stored in a database, and a thesaurus creation storing a thesaurus creation program for creating the thesaurus. It relates to a program storage medium.

[0002]

2. Description of the Related Art Conventionally, as a method of creating a thesaurus used for searching a database, in addition to a method of manually examining a relationship between words in information in a database and creating a thesaurus, a method of creating a thesaurus is also available. There is a method of automatically creating a thesaurus using the appearance frequency information of a word, and various methods have been developed for automatically creating a thesaurus from the relationship between words.

[0003]

In a distributed database environment in which a plurality of databases distributed over a wide area such as the Internet / intranet are integrated and operated, a plurality of databases connected to the network are searched. When a large-scale network is used to create a thesaurus for use, the thesaurus created by integrating the information of the plurality of databases is also very large. In order to maintain this large thesaurus with the constantly updated databases, the thesaurus administrator must constantly monitor all the databases on the network. Each time an update is made in the database, the thesaurus must be updated. However, the conventional thesaurus creation method updates a thesaurus by collecting a large amount of information in a database group consisting of a plurality of databases each time an individual database is updated. Is extremely large.

In general, database users desire to be able to always search for the latest database information. However, in the conventional thesaurus creation method, it takes a long time to collect all database information. In addition, while calculating the similarity between words for all information, the information in the database itself changes, and when the thesaurus is updated, it may be far from the needs of the user There is.

[0005] In the Internet / intranet, users are dispersed over a wide area, and the number of users is large.
It is difficult to respond to such diverse user needs with a thesaurus created by a conventional method.

[0006] On the other hand, in the Internet / intranet, a plurality of servers distributed over a wide area are operated according to their own policies, and from the user's point of view, information is added or updated at random. A multi-agent cross-search system has been developed which unifies a plurality of these randomly added and updated information sources from the user's point of view and provides them in an easy-to-handle form. In this multi-agent cross-searching system, there is a demand for searching a database using a thesaurus. However, in order to realize such a thesaurus system, it is necessary to calculate the relevance between words using all information handled by each multi-agent, create a thesaurus, and keep updating the thesaurus. However, if the conventional thesaurus creation method was adopted, the amount of information processing would be enormous,
Updating a thesaurus using it requires a great deal of cost and processing time.

[0007] In view of the above circumstances, the present invention provides an integrated thesaurus creating apparatus for creating an integrated thesaurus that can be updated quickly and at low cost using information stored in a database group including a plurality of databases. It is an object of the present invention to provide a modified thesaurus creation device and a user-specific thesaurus creation device capable of meeting various user needs.

[0008] Further, the computer system may be provided with such an integrated thesaurus creation device, a modified thesaurus creation device,
Integrated thesaurus creation program, modified thesaurus creation program, and integrated thesaurus creation program storage medium storing a user-specific thesaurus creation program to be operated as a user-specific thesaurus creation device, modified thesaurus creation program storage medium, and user-based thesaurus It is an object of the present invention to provide a program storage medium.

[0009]

According to the present invention, there is provided an integrated thesaurus creating apparatus for achieving the above object, wherein a thesaurus unique to the database is provided, which indicates the relationship between words in information stored in the database. By integrating the thesaurus acquired by the unique thesaurus acquisition means and the thesaurus acquired by the unique thesaurus acquisition means for acquiring the thesauruses of the plurality of databases, the total information stored in the database group including the plurality of databases is obtained. And integrated thesaurus creation means for creating an integrated thesaurus representing the association between the words in the whole.

According to another aspect of the present invention, there is provided a modified thesaurus creating apparatus for acquiring a thesaurus representing an association between words in information stored in a database. A modified thesaurus based on information retrieval history information in the database or a thesaurus update information provided by an operation, thereby producing a modified thesaurus.

Further, the information collecting type thesaurus creating apparatus of the present invention, which achieves the above object, has a thesaurus unique to the database, which indicates the relation between words in the information stored in the database. Information collecting means for collecting information constituting the thesaurus, based on information retrieval history information in a database group comprising the plurality of databases, and information collected by the information collecting means. Information collection thesaurus creation means for creating an information collection thesaurus corresponding to the database group based on the information.

Further, the integrated thesaurus creation program storage medium of the present invention that achieves the above object has a thesaurus unique to the database, which indicates the relationship between words in the information stored in the database. By integrating the thesaurus acquired by the unique thesaurus acquisition means for acquiring each thesaurus of the plurality of databases and the thesaurus acquired by the unique thesaurus acquisition means, it corresponds to the total information stored in the database group consisting of the plurality of databases. And an integrated thesaurus creating means for creating an integrated thesaurus representing the relationship between the words in the whole.

[0013] A modified thesaurus creation program storage medium according to the present invention that achieves the above object has a thesaurus acquisition means for acquiring a thesaurus representing the relationship between words in information stored in a database, and the thesaurus acquisition means. A modified thesaurus creation means for creating a modified thesaurus by modifying the thesaurus acquired by the above based on the history information of the information search in the database or thesaurus update information given by the operation. It is characterized by being done.

Further, in the information collection type thesaurus creation program storage medium of the present invention which achieves the above object, a thesaurus unique to the database, which indicates the relationship between words in the information stored in the database, is prepared. Information collecting means for collecting information constituting the thesaurus based on information retrieval history information in a database group comprising the plurality of databases, and information collected by the information collecting means. An information collection type thesaurus creation program including an information collection type thesaurus creation means for creating an information collection type thesaurus corresponding to the database group based on the information is stored.

[0015]

Embodiments of the present invention will be described below.

In this embodiment, the "thesaurus"
Does not simply mean a dictionary in which synonyms are collected, but is defined as a set of word pairs to which relevance has been assigned. In other words, a set of word pairs in the database to be searched which is given the depth of association between the two words constituting the word pair as a degree of association expressed as a decimal number from 0 to 1, for example. Means.

FIG. 1 shows an integrated thesaurus creation device, a modified thesaurus creation device, an information collection type thesaurus creation device, an integrated thesaurus creation program storage medium, a modified thesaurus creation program storage medium, and an information collection type thesaurus creation program storage medium of the present invention. FIG. 2 is an external view of a computer to which the present invention is applied. FIG. 2 is an integrated thesaurus creation device, a modified thesaurus creation device, an information collection type thesaurus creation device, an integrated thesaurus creation program storage medium, a modified thesaurus creation program storage medium, and 1 is an internal configuration diagram of a computer to which an information collection type thesaurus creation program storage medium is applied.

The computer 100 shown in FIG. 1 is a high-speed and large-capacity computer generally called a workstation.

As shown in FIG. 1, this computer 10
0 includes a main body 101, a display 102, a keyboard 103, a mouse 104, a communication line 105, and the like. A floppy disk insertion slot 101a and a CD-ROM insertion slot 102a are provided on the front of the main body 101.

FIG. 2 shows the inside of the computer 100.
As shown in the figure, the CPU 1 connected to the internal bus 110
11, RAM 112, hard disk controller 11
3, floppy disk drive 114, CD-ROM
Drive 115, mouse controller 116, keyboard controller 117, display controller 11
8, a communication control device 119 and the like.

The hard disk controller 113 is connected to a hard disk 113a, the mouse controller 116 is connected to the mouse 104, the keyboard controller 117 is connected to the keyboard 103, and the display controller 118 is connected to the display 102. Connected and the communication control device 119
Is connected to a communication line 105. Also, the floppy disk drive 114 has a floppy disk 11
4a is inserted, and the CD-ROM 115a is inserted into the CD-ROM drive 115.

A plurality of such computers are connected to the communication line 1.
05 interconnected to form a distributed system,
The databases formed on the hard disks of the plurality of computers are connected by a network to form a distributed database.

As the integrated thesaurus creation program storage medium of the present invention, for example, a CD-ROM 115a, a floppy disk 114a or the like is used. The integrated thesaurus creation program storage medium includes a thesaurus acquisition system for acquiring the thesauruses of a plurality of databases each of which is provided with a thesaurus unique to the database, which indicates a relationship between words in information stored in the database. Means, by integrating the thesaurus acquired by the thesaurus acquisition means, an integrated thesaurus corresponding to the total information stored in the database group consisting of a plurality of databases and representing the relationship between words in the total is obtained. An integrated thesaurus creation program including an integrated thesaurus creation means to be created is stored.

The modified thesaurus creation program storage medium of the present invention includes, for example, a CD-ROM 115a,
A floppy disk 114a or the like is used. The modified thesaurus creation program storage medium includes a thesaurus acquisition unit for acquiring a thesaurus representing the relationship between words in the information stored in the database, and a thesaurus acquired by the thesaurus acquisition unit. A modified thesaurus creation program including a modified thesaurus creation means for creating a modified thesaurus by modifying based on history information or thesaurus update information given by an operation is stored.

As an information collection type thesaurus creation program storage medium of the present invention, for example, a CD-ROM 115a,
A floppy disk 114a or the like is used. In this information collection type thesaurus creation program storage medium, a thesaurus of a plurality of databases, each of which is provided with a thesaurus unique to the database, representing a relation between words in information stored in the database,
Information collecting means for collecting information constituting the thesaurus based on history information of information retrieval in a database group comprising a plurality of databases, and information corresponding to the database group based on the information collected by the information collecting means An information collection type thesaurus creation program including information collection type thesaurus creation means for creating a collection type thesaurus is stored.

The integrated thesaurus creation program, the modified thesaurus creation program, or the information collection type thesaurus creation program of the present invention stored in these storage media uses the CD-ROM drive or the floppy disk drive shown in FIGS. The integrated thesaurus creation device, the modified thesaurus creation device, or the information collection type thesaurus creation device of the present invention is formed inside the computer 100 by being read into the CPU 111 via the CPU 111 and installed on the hard disk 113a.

Embodiments of the integrated thesaurus creation device, the modified thesaurus creation device, and the information collection type thesaurus creation device of the present invention thus formed will be described below.

FIG. 3 is a block diagram showing an embodiment of the integrated thesaurus creating apparatus according to the present invention, and FIG. 4 is a flowchart showing an algorithm for creating an integrated thesaurus by the integrated thesaurus creating apparatus shown in FIG.

As shown in FIG. 3, a plurality of databases 1
In a distributed system environment in which a database group 15 composed of 5a and 15b is integrated and used,
a, database manager 16 located in 15b
a and 16b, the respective databases 15a and 15b
b is constantly updated.

Each database manager 16a, 16b
Updates the database thesaurus 17a, 17b unique to each database, which indicates the relationship between words in the information stored in each database every time the database 15a, 15b is updated. That is, word pairs and their numbers included in each database are counted (FIG. 4: step S11), and the degree of association between the word pairs is calculated based on the obtained statistical information (FIG. 4: step S11). S12) The database thesaurus 17a, 17b unique to the database is re-created, and the fact that the re-creation was performed is described in the integrated thesaurus creating apparatus 1 of the present embodiment.
Notify 0. The degree of association between the same word pairs is performed by an average calculation process of the degrees of association.

The integrated thesaurus creating apparatus 10 of the present embodiment
As shown in FIG. 3, the thesaurus obtaining means 11_1 and the integrated thesaurus creating means 11
— 2.

Each time the database thesaurus update notification is received from each database manager, the thesaurus obtaining means 11_1 obtains information on the database thesaurus 17a, 17b unique to each of the databases 15a, 15b (FIG. 4: step S21). The integrated thesaurus creating means 11_2 performs a thesaurus combination of the information of the database thesaurus 17a, 17b acquired by the thesaurus acquiring means 11_1 at a word pair level (FIG. 4: step S22), and averages the degree of association of the same word pair by averaging or the like. It is obtained by processing (FIG. 4: step S23). In this way, an integrated thesaurus 12 corresponding to the total information stored in the database group 15 including the two databases 15a and 15b and representing the relation between the words in the total is created.

Each user 13a, 13 of this distributed system
b can use the integrated thesaurus 12 to efficiently retrieve information stored in a database group 15 including a plurality of databases arranged in a distributed manner.

As described above, the integrated thesaurus creation device 10 of the present embodiment is a system in which the words in the total correspond to the total information stored in the database group 15 composed of a plurality of databases arranged in a distributed manner. By re-creating the integrated thesaurus 12 representing the relationship between the two, the structure of the thesaurus in the distributed system becomes a two-layer structure of the database thesaurus 17a, 17b and the integrated thesaurus 12, and compared to a conventional single-layer thesaurus. The update of each database thesaurus and the update of the integrated thesaurus can both be accelerated, and the update time and cost of the thesaurus can be significantly reduced.

Next, an embodiment of the modified thesaurus creating apparatus of the present invention will be described.

FIG. 5 is a block diagram showing an embodiment of a modified thesaurus creating apparatus according to the present invention.

As shown in FIG. 5, a plurality of databases 1
In a distributed system environment in which a database group 15 composed of 5a and 15b is integrated and used,
a, database manager 16 located in 15b
a and 16b, the respective databases 15a and 15b
b has been updated. Each database manager 16
a and 16b are the respective databases 15a and 15b
Each time is updated, the number of word pairs and the number of words included in the updated database are counted, and the degree of association between the word pairs is calculated based on the obtained statistical information, and the database thesaurus 17a unique to the database is calculated. , 17b are re-created, and the fact that the re-creation has been performed is notified to the modified thesaurus creating apparatuses 20a, 20b of the present embodiment via the facilitator 21.

The facilitator 21 has a unique thesaurus acquisition unit 21_1 and an integrated thesaurus creation unit 21
_2 is provided, and the unique thesaurus acquisition means 21_
1 obtains database thesauruses 17a and 17b unique to the two databases 15a and 15b each time an update notification is received from each database manager. The integrated thesaurus creating means 21_2 integrates the database thesaurus 17a, 17b acquired by the unique thesaurus acquiring means 21_1, thereby corresponding to the total information stored in the database group 15 including the two databases 15a, 15b. An integrated thesaurus 22 representing the relation between words in the whole is created.

The modified thesaurus creating apparatus 20 of the present embodiment
As shown in FIG. 5, a and 20b are respectively provided in two interface managers 23a and 23b in a thesaurus acquisition unit 23_1a and a modified thesaurus creation unit 23_2.
a, a thesaurus acquisition unit 23_1b, and a modified thesaurus creation unit 23_2b.

Thesaurus acquisition means 23_1a, 23_1
b acquires the integrated thesaurus 22 created by the integrated thesaurus creating means 21_2, and the modified thesaurus creating means 23_2a and 23_2b acquire the thesaurus acquiring means 2
The modified thesauruses 24a and 24b are created by modifying the integrated thesaurus 22 acquired by the 3_2a and 23_2b based on the history information of the information search in the databases 15a and 15b or thesaurus update information given by the operation.

Modified thesaurus creating means 23_2a, 23
_2b is the modified thesaurus 24a, 24a when the user 25a, 25b, 25c, 25d inputs a keyword.
The correction processing of b is started. Here, the “keyword” refers to a first word of a word pair forming a thesaurus. The second word in the word pair is called a sub-keyword.

FIG. 6 is a diagram showing three operation modes of the modified thesaurus creating means of this embodiment.

As shown in FIG. 6, the modified thesaurus creating means 23_2 of this embodiment has a history learning mode 23_2.
_1, a user customization mode 23_2_2, and an external thesaurus integration mode 23_2_3.

The history learning mode 23_2_1 is an operation mode for creating a modified thesaurus based on the history information of the information search in the database, and the user customizing mode 23_2_2 is a thesaurus updating provided by a direct operation such as input / deletion by the user. The external thesaurus integration mode 23_2_3 is an operation mode for creating a modified thesaurus based on the information. The external thesaurus integrated mode 23_2_3 is a modified thesaurus for updating thesaurus information provided from the outside, for example, various commercially available dictionaries and glossaries created by other business departments. This is an operation mode in which a modified thesaurus is created by merging.

FIG. 7 is a flowchart showing the algorithm of the correction process by the correction thesaurus creating means.

FIG. 7 shows, for example, that the modified thesaurus creation means 23_2a (see FIG. 5) uses the thesaurus to obtain sub-keywords used by the user 25a for search.
An example in which a certain keyword is input (step S31) is shown. The correction process in this case is executed by the history learning mode 23_2_1 provided in the correction thesaurus creating unit 23_2 shown in FIG. That is, it is determined whether or not the input keyword is included in the modified thesaurus 24a (step S32), and if the keyword is included in the modified thesaurus 24a, the information is used using the information of the modified thesaurus 24a. Thesaurus development is performed (step S33), and candidates for the sub-keyword are displayed, and the user is requested to select a sub-keyword suitable as a search keyword from the candidates. When the user selects a sub-keyword (step S34), the modified thesaurus creating means changes the degree of association between the keyword input by the user and the sub-keyword (step S35), and updates the data of the modified thesaurus 24a (step S3).
6).

Here, when changing the degree of relevance between a keyword and a sub-keyword, the degree of relevancy is increased by a predetermined amount by a single operation by a user, and the degree of relevance other than the combination of the selected keyword and sub-keyword is changed The relevance of the combination may be automatically reduced, or the user may specify the amount of increase or decrease of the relevance.

On the other hand, in step S32, when the keyword input by the user is not included in the correction thesaurus 24a, and in step S32, the correction thesaurus 23_2 itself has not yet been created when the keyword is input. In this case, the process proceeds to step S37. In step S37, information about the keyword is acquired from the integrated thesaurus 22, and
Thesaurus development is performed using the information of (Step S3)
8) Display sub-keyword candidates and request the user to select a desired sub-keyword from the candidates. The user selects a sub-keyword (step S3
9), the degree of association between the keyword and the sub-keyword input by the user is changed (step S40), and information about the keyword is registered in the modified thesaurus 24a (step S41).

Next, the process of the modified thesaurus creation processing by the modified thesaurus creation apparatus of the present embodiment will be described with a specific example.

FIG. 8 is a diagram showing a process of creating a modified thesaurus by the modified thesaurus creating apparatus of this embodiment.

As shown in FIG. 8, there are two database thesauruses 17a and 17b. For example, the database thesaurus 17a includes a pair of a word "Kawasaki" and a word "Urawa" such as "Kawasaki... Urawa 0.7". , And thesaurus information and other thesaurus information composed of the degree of association "0.7" between the word pairs are stored, and "Kawasaki ... Urawa 0.4" and other thesaurus information are stored in the database thesaurus 17b. Have been.

The unique thesaurus acquisition means 21_1 (see FIG. 5) is configured to use these two database thesauruses 17a,
17b, and the integrated thesaurus creation means 21_2 acquires
2 acquired by the unique thesaurus acquisition unit 21_1
The two database thesauruses 17a and 17b are integrated, and for example, the degree of relevance is determined based on the thesaurus information "Kawasaki Urawa 0.7" of the database thesaurus 17a and thesaurus information "Kawasaki Urawa 0.4" of the database thesaurus 17b. , A new degree of association 0.55 is obtained, new thesaurus information “Kawasaki... Urawa 0.55” is created and stored in the integrated thesaurus 22. Since the thesaurus information corresponding to the thesaurus information “Kawasaki... Mayor 0.5” of the database thesaurus 17a does not exist in the database thesaurus 17b, the integrated thesaurus 22 stores the thesaurus information of the database thesaurus 17a “Kawasaki. .5 "is registered as it is. In this way, the database thesaurus 17
a and 17b are integrated to create an integrated thesaurus 22.

Here, this modified thesaurus creating apparatus includes:
If the user enters the keyword “Kawasaki” to search for a sub-keyword related to the keyword “Kawasaki”, if the keyword “Kawasaki” is included in the modified thesaurus 24a, the modified thesaurus is The creating unit 23_2a expands the thesaurus using the information of the modified thesaurus 24a, displays sub-keyword candidates, and requests the user to select a sub-keyword from among them.

If the sub-keyword desired by the user does not exist in the sub-keyword candidates obtained as a result of the thesaurus expansion at the sub-keyword selection stage by the user, the sub-keyword input by the user is selected. Can create a thesaurus with new word pairs.

For example, if there is no “Sachi Ward” that the user wants to use for the search in the displayed sub-keywords, a new customizing mode such as “Kawasaki. Thesaurus information may be input. In addition, external thesaurus update information can be merged with the modified thesaurus by the external thesaurus integration mode, and new thesaurus information such as “Kawasaki... Kashima 0.89” can be added. Also, when there is a thesaurus information “Kawasaki... Mayor 0.5” including the sub-keyword “Mayor” desired by the user among the displayed sub-keywords,
FIG. 8 shows an example in which the thesaurus information is corrected to "Kawasaki... Mayor 0.75" by the history learning mode while the search is repeated several times.

As described above, the modified thesaurus creating means 23_2a can modify the modified thesaurus 24a acquired by the thesaurus acquiring means 23_1a in the three operation modes of the modified thesaurus creating means 23 shown in FIG. The modified thesaurus creation apparatuses 20a and 20b according to the present embodiment can create a thesaurus that meets the needs of the user.

Also, by using the modified thesaurus creating apparatuses 20a and 20b of the present embodiment, a thesaurus system having a three-layer structure of the database thesaurus 17a and 17b, the integrated thesaurus 22, and the modified thesaurus 24a and 24b is created. Therefore, it is possible to reduce the processing time and cost of updating the thesaurus. It is also possible to create a modified thesaurus that can be used only by some users in a distributed database environment or by users in some specialized fields. Sharing knowledge is also possible.

The modified thesaurus creating devices 20a and 20b according to the present embodiment shown in FIG. 5 include a thesaurus acquisition unit 23_ in the interface managers 23a and 23b.
1a and 23_1b are configured to acquire the information of the integrated thesaurus 22, but the modified thesaurus creation device of the present invention is configured in this way. You may comprise so that thesaurus information may be acquired directly from a database thesaurus.

Further, in the modified thesaurus creating apparatus of the present invention, the above-mentioned thesaurus acquiring means acquires a part of the database thesaurus, and the modified thesaurus creating means modifies and corrects the part acquired by the thesaurus acquiring means. You may be comprised so that a thesaurus may be created.

Next, another embodiment of the modified thesaurus creating apparatus of the present invention will be described.

FIG. 9 is a block diagram showing another embodiment of the modified thesaurus creating apparatus of the present invention.

As shown in FIG. 9, a plurality of databases 1
In a distributed system environment in which a database group 15 composed of 5a and 15b is integrated and used,
a, database manager 16 located in 15b
a and 16b, the respective databases 15a and 15b
b has been updated. Each database manager 16
a and 16b are the respective databases 15a and 15b
Each time is updated, the number of word pairs and the number of words included in the updated database are counted, and the degree of association between the word pairs is calculated based on the obtained statistical information, and the database thesaurus 17a unique to the database is calculated. , 17b are re-created, and the fact that the re-creation has been performed is notified to the modified thesaurus creating apparatuses 30a, 30b of the present embodiment via the facilitator 31. In the facilitator 31, as in FIG. 5, the unique thesaurus acquisition unit 31_1, the integrated thesaurus creation unit 31_2, and the thesaurus acquisition unit 33_1a,
33_1b is provided.

The modified thesaurus creating device 30 of the present embodiment
As shown in FIG. 9, a and 30b are respectively provided in the two interface managers 33a and 33b in a thesaurus acquisition unit 33_1a and a modified thesaurus creation unit 33_
2a, user-specific thesaurus creation means 33_3a, thesaurus acquisition means 33_1b, modified thesaurus creation means 33_2b, user-specific thesaurus creation means 33_3b
It has.

The modified thesaurus creating device 3 of this embodiment
Reference numerals 0a and 30b are obtained by adding user-specific thesaurus creation units 33_2a and 33_3b to the modified thesaurus creation devices 20a and 20b of the embodiment shown in FIG. 5, and include a thesaurus acquisition unit 33_1b and modified thesaurus creation units 33_2a and 33_2b. Are essentially the same as those of the same type in the modified thesaurus creation apparatuses 20a and 20b, and therefore, in the following description, only the user-specific thesaurus creation means 33_3a and 33_3b will be described.

User-specific thesaurus creation means 33_3a,
33_3b is a modified thesaurus creating means 33_2a, 33_2
Modified thesaurus 34a, 3 created by 3_2b
4b and the users 36 of the databases 15a and 15b.
The user-specific thesauruses 35a, 35b, 35c, and 35d are corrected for each of a, 36b, 36c, and 36d based on the history information of information search by each user or thesaurus update information given by each user. create.

User-specific thesaurus creation means 33_3a,
33_3b, user-specific thesaurus 35a, 35b,
The algorithm of the creation processing of 35c and 35d is essentially the same as the flowchart shown in FIG.

As described above, the modified thesaurus creating devices 30a and 30b of the present embodiment are provided with the user-specific thesaurus creating means 33_3a and 33_3b, so that the user-specific thesaurus 35a, which reflects the individual needs of each user, is provided.
35b, 35c, and 35d can be created.

Next, an embodiment of the information collecting type thesaurus creating apparatus of the present invention will be described.

FIG. 10 is a block diagram showing an embodiment of the information collecting type thesaurus creating apparatus according to the present invention.

As shown in FIG. 10, in a distributed system environment in which a database group 15 including a plurality of databases 15a and 15b is integrated and used,
Database manager 16 located in 5a, 15b
a and 16b, the respective databases 15a and 15b
b has been updated. Each database manager 16
a and 16b are the respective databases 15a and 15b
Each time is updated, the number of word pairs and the number of words included in the updated database are counted, and the degree of association between the word pairs is calculated based on the obtained statistical information, and the database thesaurus 17a unique to the database is calculated. , 17b are re-created, and the fact that the re-creation has been performed is transmitted via the facilitator 41 to the information collection type thesaurus creating apparatus 40a, 4 of the present embodiment.
0b.

As shown in FIG. 10, the information collecting type thesaurus creating devices 40a and 40b of the present embodiment include information collecting means 43_1a, information collecting thesaurus creating means 43_2a, and two interface managers 43a and 43b, respectively. An information collecting unit 43_1b and an information collecting type thesaurus creating unit 43_2b are provided.

The information collecting means 43_1a, 43_1b
A database thesaurus 17a, 1 representing the relationship between words in the information stored in the databases 15a, 15b
Database thesaurus 1 of databases 15a and 15b in which a thesaurus specific to 7b is prepared respectively.
7a, 17b, these databases 15a, 15
b in the database group 15 composed of
Thesaurus information forming the database thesaurus 17a, 17b is collected based on the history information of the information search by 45b, 45c, 45d.

Information collection type thesaurus creating means 43_2
a, 43_2b are information collecting means 43_1a, 43_1
b, the information collection type thesaurus 44 corresponding to the database group 15 based on the thesaurus information collected by the
a, 44b are created.

As described above, in the information collection type thesaurus creation devices 40a and 40b of this embodiment, the information collection type thesaurus creation means 43_2a and 43_2b do not simply merge the database thesauruses 17a and 17b.
Since a thesaurus is created only for information on which each user has searched for information, the information collection type thesaurus 44a, 44
The size of b is not unnecessarily large, and
Since a thesaurus having a two-layer structure of the database thesaurus 17a, 17b and the information collecting thesaurus 44a, 44b is created, the speed of the thesaurus updating process is reduced, the cost is reduced, and the thesaurus that meets the needs of the user is achieved. Can be created.

Next, another embodiment of the information collecting type thesaurus creating apparatus of the present invention will be described.

FIG. 11 is a block diagram showing another embodiment of the information collecting type thesaurus creating apparatus according to the present invention.

The information collection type thesaurus creation devices 50a and 50b of the present embodiment are different from the information collection type thesaurus creation devices 40a and 40b of the embodiment shown in FIG. 10 in that the user-specific thesaurus creation means 53_3a and 53_3 described below are used.
b, and information collecting means 53_1a, 53_1 in the interface managers 53a, 53b.
b, and information collection type thesaurus creation means 53_2a,
53_2b is an information collection type thesaurus creation device 40a,
40b, which are essentially the same as those of the same kind in the following description.
Only 3_3a and 53_3b will be described.

This user-specific thesaurus creation means 53_3
a, 53_3b are information collection thesauruses 54a, 54b created by the information collection type thesaurus creation means 53_2a, 53_2b, like the user-specific thesaurus creation means 33_3a, 33_3b in the modified thesaurus creation devices 30a, 30b shown in FIG. To the users 56a, 56b, 56c, 56 of the databases 15a, 15b.
For each d, correction is performed based on the history information of information search by each user or thesaurus update information given by each user, so that the thesaurus for each user 55a, 55
5b, 55c, and 55d are created.

This user-specific thesaurus creation means 53_3
a, 53_3b, user-specific thesaurus 55a, 55
The algorithm for the creation processing of b, 55c, 55d is essentially the same as the flow chart shown in FIG. As described above, the information collection type thesaurus creation devices 50a and 50b of the present embodiment are provided with the user-specific thesaurus creation means 53_3a and 53_3b, so that the thesaurus in the distributed database environment can be converted into a database thesaurus, an information collection type thesaurus, and the like. Since the thesaurus is created as a three-layer thesaurus composed of the thesauruses for each user, the information collecting thesauri 54a and 54b can be created as reflecting the individual needs of each user, and the thesaurus can be updated quickly and in low cost. Cost reduction can be achieved.

[0080]

As described above, the integrated thesaurus creation device, the modified thesaurus creation device, and the user-specific thesaurus creation device of the present invention create a thesaurus for database search in a distributed database environment as a multilayer thesaurus. Therefore, an integrated thesaurus creation device that creates an integrated thesaurus that can be updated quickly and at low cost, a modified thesaurus creation device that can respond to various user needs, and a user-specific thesaurus creation device are realized. be able to.

By using the integrated thesaurus creation program storage medium, the modified thesaurus creation program storage medium, and the user-specific thesaurus creation program storage medium of the present invention, the integrated thesaurus creation apparatus of the present invention can be installed on a computer system. A modified thesaurus creation device and a user-specific thesaurus creation device can be easily formed.

With respect to the above description, the following items are further disclosed. (1) The database is a distributed database including a plurality of individual databases arranged in a distributed manner,
A modified thesaurus creation device, wherein the thesaurus is an integrated thesaurus in which the thesaurus unique to each of the plurality of individual databases is integrated. (2) A modified thesaurus creation device, wherein the thesaurus acquisition means acquires a part of the thesaurus, and the modified thesaurus creation means modifies the part acquired by the thesaurus acquisition means. (3) The modified thesaurus creating device further updates the modified thesaurus created by the modified thesaurus creating means for each user of the database and records history information of information search by each user or updates the thesaurus given by each user A modified thesaurus creation device comprising a user-specific thesaurus creation means for creating a user-specific thesaurus by modifying based on information. (4) The collection-type thesaurus creation device further collects the collection-type thesaurus created by the collection-type thesaurus creation means for each user of the distributed database environment, by using history information of information search by each user or by each user. A collection-type thesaurus creation device comprising a user-specific thesaurus creation means for creating a user-specific thesaurus by correcting based on given thesaurus update information.

[Brief description of the drawings]

FIG. 1 shows an integrated thesaurus creation device, a modified thesaurus creation device, an information collection type thesaurus creation device, an integrated thesaurus creation program storage medium, a modified thesaurus creation program storage medium, and an information collection thesaurus creation program storage medium of the present invention. 1 is an external view of a computer.

FIG. 2 shows an integrated thesaurus creation device, a modified thesaurus creation device, an information collection type thesaurus creation device, an integrated thesaurus creation program storage medium, a modified thesaurus creation program storage medium, and an information collection thesaurus creation program storage medium of the present invention. 1 is an internal configuration diagram of a computer.

FIG. 3 is a block diagram showing an embodiment of the integrated thesaurus creation device of the present invention.

4 is a flowchart showing an algorithm for creating an integrated thesaurus by the integrated thesaurus creating apparatus shown in FIG. 3;

FIG. 5 is a block diagram showing an embodiment of the modified thesaurus creation device of the present invention.

FIG. 6 is a diagram showing three operation modes of the modified thesaurus creation means of the embodiment.

FIG. 7 is a flowchart showing an algorithm of a correction process by a correction thesaurus creating unit.

FIG. 8 is a diagram illustrating a process of creating a modified thesaurus by the modified thesaurus creating device of the present embodiment.

FIG. 9 is a block diagram showing another embodiment of the modified thesaurus creation device of the present invention.

FIG. 10 is a block diagram showing one embodiment of an information collection type thesaurus creation device of the present invention.

FIG. 11 is a block diagram showing another embodiment of the information collection type thesaurus creation device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Integrated thesaurus creation device 11 Facilitator 11_1 Thesaurus acquisition means 11_2 Integrated thesaurus creation means 12 Integrated thesaurus 13a, 13b User 15 Database group 15a, 15b Database 16a, 16b Database manager 17a, 17b Database thesaurus 20a, 20b Modified thesaurus creation device 21 21_1 Unique Thesaurus Acquisition Means 21_2 Integrated Thesaurus Creation Means 23a, 23b Interface Manager 23_1a, 23_1b Thesaurus Acquisition Means 23_2, 23_2a, 23_2b Modified Thesaurus Creation Means 23_2_1 History Learning Mode 23_2_2 User Customization Mode 23_2_3 External Thesaurus, Modification of External Thesaurus 24b 2 b, 25c, 25d Users 30a, 30b Modified thesaurus creation device 31 Facilitator 31_1 Unique thesaurus acquisition means 31_2 Integrated thesaurus creation means 33a, 33b Interface managers 33_1a, 33_1b Thesaurus acquisition means 33_2a, 33_2b Modified thesaurus creation means 33_b, 33_a Thesaurus creating means 34a, 34b Modified thesaurus 35a, 35b, 35c, 35d Thesaurus for each user 36a, 36b, 36c, 36d Users 40a, 40b Information collecting type thesaurus creating device 41 Facilitator 43a, 43b Interface manager 43_1a, 43_1b Information collecting means 43_2a, 43_2b Information collection type thesaurus creation means 44a, 44b Information collection type thesaurus 5a, 45b, 45c, 45d Users 50a, 50b Information collection type thesaurus creation devices 53a, 53b Interface managers 53_1a, 53_1b Information collection means 53_2a, 53_2b Information collection type thesaurus creation means 53_3a, 53_3b User-specific thesaurus creation means 54a, 54b Information collecting thesaurus 55a, 55b, 55c, 55d User-specific thesaurus 56a, 56b, 56c, 56d User 100 Computer 101 Main unit 101a Floppy disk insertion slot 101b CD-ROM insertion slot 102 Display 103 Keyboard 104 Mouse 105 Communication line 110 Internal Bus 111 CPU 112 RAM 113 Hard disk controller 113a Hard disk 114 Floppy disk drive 114a Floppy disk 115 CD-ROM drive 115a CD-ROM 116 Mouse controller 117 Keyboard controller 118 Display controller 119 Communication controller

Continuation of the front page (72) Inventor Nobuhiro Yugami 4-1-1, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa F-term within Fujitsu Limited 5B075 KK03 KK07 KK40 ND20 NK02 NK35 NR06 NR20 PP02 PP03 PP22 PQ02 UU01 UU40 (54) [Title of the Invention] Integrated thesaurus creation device, modified thesaurus creation device, information collection type thesaurus creation device, integrated thesaurus creation program storage medium, modified thesaurus creation program storage medium, and information collection type thesaurus creation program storage medium

Claims (6)

[Claims] 1. A unique thesaurus acquisition means for acquiring each thesaurus of a plurality of databases, each of which is provided with a thesaurus unique to the database, representing a relation between words in information stored in the database, By integrating the thesaurus acquired by the unique thesaurus acquisition means, an integrated thesaurus corresponding to the total of information stored in the database group including the plurality of databases and representing the relation between words in the total is created. An integrated thesaurus creation device, comprising: an integrated thesaurus creation means. 2. A thesaurus acquisition means for acquiring a thesaurus representing a relation between words in information stored in a database; and a thesaurus acquired by the thesaurus acquisition means, wherein information on history of information retrieval in the database; A modified thesaurus creating means for creating a modified thesaurus by modifying based on thesaurus update information given by an operation. 3. A database group consisting of a plurality of databases each provided with a thesaurus unique to the database and representing a relation between words in information stored in the database. Information collection means for collecting information constituting the thesaurus based on the history information of the information search, based on the information collected by the information collection means,
An information collection type thesaurus creation device, comprising: an information collection type thesaurus creation unit that creates an information collection type thesaurus corresponding to the database group. 4. A unique thesaurus acquisition means for acquiring each thesaurus of a plurality of databases each prepared with a thesaurus unique to the database and representing the relation between words in the information stored in the database; By integrating the thesaurus acquired by the unique thesaurus acquisition means, an integrated thesaurus corresponding to the total of information stored in the database group including the plurality of databases and representing the relation between words in the total is created. An integrated thesaurus creation program storage medium, wherein an integrated thesaurus creation program including an integrated thesaurus creation means is stored. 5. A thesaurus acquisition means for acquiring a thesaurus representing the relationship between words in information stored in a database; and a thesaurus acquired by the thesaurus acquisition means, the history information of information retrieval in the database, or A modified thesaurus creation program storage medium, characterized by storing a modified thesaurus creation program including a modified thesaurus creation means for creating a modified thesaurus by modifying based on thesaurus update information given by an operation. 6. A database group consisting of a plurality of databases each provided with a thesaurus unique to the database and representing a relation between words in information stored in the database. Information collection means for collecting information constituting the thesaurus based on the history information of the information search, based on the information collected by the information collection means,
An information collection type thesaurus creation program storage medium, comprising: an information collection type thesaurus creation program including information collection type thesaurus creation means for creating an information collection type thesaurus corresponding to the database group.