JP3250453B2 - Link maintenance system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a link maintenance system, and more particularly to a link maintenance system of a hypermedia system in which multimedia information is linked by a directional reference link.

[0002]

2. Description of the Related Art In general, a hypermedia system is a system for storing, managing, and utilizing hypermedia data consisting of a large number of multimedia information and a large number of reference links for linking the data. The user can acquire various information by following the reference link linked to the information.

[0003] Since hypermedia data is a large amount of information linked by links, it is difficult to manage the data in an integrated manner. For example, data that is a link source of a reference link and data that is a link destination are referred to. May be different.

[0004] For example, "GOPHER, WWW, WA
IS Shin Yoshimura UNIX MAGAZINE 199
In the hypermedia system described in the December, March issue, pages 71 to 79, it is also possible to handle reference links to multimedia information existing on another machine via a network, and this has become an increasingly comprehensive system. It is becoming difficult to manage.

[0005]

In the above-described conventional hypermedia system, if it becomes difficult to perform comprehensive data management, the link destination data suddenly disappears due to the movement of the link destination data of the reference link. The problem that it cannot be traced occurs.

When the link destination data becomes invisible, the administrator of the link source data has to search for the link destination data and set the reference link again, but this operation is very difficult for the data administrator. There is a problem that it becomes a heavy burden and that a user who tries to follow a link cannot immediately obtain desired information.

The present invention automatically checks the link destination data of the reference link, and searches for the link destination data when the link destination data is not present, thereby performing the maintenance work of the reference link performed by the data manager. It is an object of the present invention to provide a link maintenance system that reduces the number of reference links that can be reduced.

[0008]

A first link maintenance system of the present invention stores hypermedia data in which multimedia information including still image, moving image, audio, and text data is connected by a directional reference link. In a hypermedia system to be managed and used, (a) link destination data acquisition means for acquiring link destination hypermedia data existing on another machine via a hypermedia database or a network according to a user's instruction and providing the user with the link destination data; (B) when the link destination data is obtained, search auxiliary knowledge extraction for extracting search auxiliary knowledge as storage location or reference link information included in the link destination hypermedia data based on the obtained data. (C) extracted by the search auxiliary knowledge extracting means. A link search knowledge base for changing and accumulating the search auxiliary knowledge, (d) a link information database for storing a list of reference links for checking link destinations, and (e) a timing generating means for generating a timing of link destination check. , (f) and destination check means for checking the link information database whether acquired destination of the reference link in accordance with the timing and (g) the link destination check means the link information data
A link that cannot be obtained is found in the database
Case, the stored in the link search knowledge base was
Search for search aid knowledge, and search for links that cannot be obtained.
Link that has the same reference link information as the link
Link searching means for identifying the output link as a link whose link destination cannot be obtained and notifying the data manager of the result.

[0009] The second link maintenance system of the present invention, there is provided a first link maintenance system, the hypermedia data based on the identified
The link destination searching means for automatically changing the contents of a base
Having.

[0010]

[0011]

[0012]

[0013]

Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the link maintenance system of the present invention.

FIG. 2 shows the knowledge used for the link search.

FIG. 3 is a flowchart showing a procedure for checking and searching one reference link.

FIG. 4 is an explanatory diagram showing hypermedia data links.

FIG. 5 is an explanatory diagram showing search auxiliary knowledge for the hypermedia data of FIG.

FIG. 6 is an explanatory diagram showing a link maintenance procedure.

FIG. 7 is an explanatory diagram showing search assistance knowledge for the hypermedia data of FIG.

FIG. 8 is an explanatory diagram showing a link maintenance procedure.

In FIG. 1, link destination data acquisition means 2
In accordance with a request from the user, the system obtains multimedia data existing in another machine via the hypermedia database 202 or the network 203 and provides information to the user.

The search assisting knowledge extracting means 204 converts the link destination data acquired by the link destination data acquiring means 201
The storage location of the linked data (for example, the name of the file or the name of the machine storing the data, etc.) and the information of the reference link included in the data (hereinafter, referred to as search auxiliary knowledge) are extracted. Search Knowledge Base 2
Store in 05.

The link search knowledge base 205 includes link search knowledge and search auxiliary knowledge extracting means 204 as shown in FIG.
Are stored as search auxiliary knowledge and used as knowledge information when performing a link search.

The timing generating means 206 includes, for example,
When there is no link acquisition request from the user, the link destination check unit 208 is activated.

The link information database 207 stores storage locations of link source data and link destination data of all reference links to be maintained, such as all reference links existing in a system in which the present link maintenance system is operating. Alternatively, store the access method.

When the link destination check means 208 is activated by the timing generation means 206, all of the reference links stored in the link information database 207 are deleted.
Alternatively, it is checked whether link destination data can be acquired for a part (step 101 in FIG. 3).
reference). When a reference link that cannot acquire the link destination data is found, the reference link is transferred to the link destination search unit 209 (see step 102 in FIG. 3).

The link destination searching means 209 receives the reference link from which the link destination data cannot be obtained from the link destination checking means 208, and stores the link destination data of the reference link into the knowledge stored in the link search knowledge base 205. The search is performed using the search (see step 103 in FIG. 3), the result is notified to the data manager, and the setting of the reference link information of the hypermedia database is changed (see step 104 in FIG. 3).

Next, the operation of the link maintenance system of the present invention will be described.

A description will be given taking hypermedia data as shown in FIG. 4 as an example.

Data 1 and data 2 are linked by reference link A, data 1 and data 3 are linked by reference link B, and data 4 and data 3 are linked by reference link E. . The data 3 is linked to other data by reference links C and D.

The link search knowledge base 205 stores link search knowledge as shown in FIG.

It is assumed that the links to be maintained are all reference links of the hypermedia data. Therefore, all reference links from link A to link E are registered in the link information database 207.

Search auxiliary knowledge as shown in FIG. 5 is extracted from the hypermedia data of FIG. 4 by the search auxiliary knowledge extracting means 204 and stored in the link search knowledge base 205.

Here, as shown in FIG.
Is changed to data 3a, link E of data 4 is changed to link Ea to data 3a, but link B from data 1 is not changed.

[0036] Ru this time, der can perform the acquisition of data normally 3a follow links Ea from data 4
Therefore, hyperlinks are acquired through this system.
User (management of document data such as data 1)
May be different from the person), but acquire data 4,
Following the link Ea included in the data 4, the data 3a
Is obtained, the search assisting knowledge extracting means 204
The search auxiliary knowledge stored in the link search knowledge base 205 is changed as shown in FIG.

However, in this case, an attempt to follow the link B of the data 1 results in an error because the link destination data does not exist.

In this state, it is assumed that a condition such as no request from the user to acquire a link has been satisfied for a certain period of time, and the timing generation means 206 activates the link destination check means 208.

The link destination check means 208 sequentially checks the reference links stored in the link information database 207.

For the link A, only the check is performed because the data 2 can be normally acquired (see step 102 in FIG. 3).

The link B is transferred to the link destination searching means 209 because the link 3 tries to obtain data 3 but cannot obtain it (see steps 102 and 103 in FIG. 3).

The link destination search means 209 receives the link B link destination search request from the link destination check means 208 and starts searching for data 3.

The link destination search means 209 first starts searching using the link search knowledge (1) in FIG.

In the link search knowledge (1), data having the same information as the reference link of the data 3 is searched for in the search auxiliary knowledge (see FIG. 7) stored in the link search knowledge base 205. In this case, it is found that the data 3a matches the condition, and it is checked whether the data 3a can be acquired. Since the data 3a can be acquired normally, the link destination searching means 209 determines that the data 3 which was the link destination of the link B has been changed to the data 3a, and ends the search.

When the search is completed, "Data 3
to the data manager.

Further, link B of data 1 is changed to link Ba to data 3a (that is, hypermedia data
It is also possible to change the contents of the database 202 (see FIG. 8).

The information stored in the link search knowledge base 205 includes not only the information of the reference link included in the link source data as shown in FIG. 5, but also the keywords and special types cut out from the text data included in the link source data. It is also possible to include data such as characters and information such as reference links and text data included in the link destination data of the reference links.

Further, a method for searching the full text of a file using keyword information cut out from the text or the like included in the link source data as a key without preparing search assisting knowledge, and a method of using Lycus (Lycos Internet homepage address http: // lycos) .Cs.cmu.ed
u / lycos-websize. html (see html), it is also possible to use link search knowledge that searches for linked data using a method of searching for a WWW page from a keyword.

[0049]

As described above, according to the present invention, the link destination data of the reference link is automatically checked, and if there is no link destination data, the search for the link destination data is performed. Conventionally, reference link maintenance work conventionally performed by data managers is greatly reduced, and the existence of reference links for which link destination data cannot be obtained can be reduced, so that when a user attempts to obtain information, Improve the poor response that information cannot be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a link maintenance system of the present invention.

FIG. 2 is an explanatory diagram showing knowledge used for a link search.

FIG. 3 is a flowchart showing a procedure for checking and searching for a reference link.

FIG. 4 is an explanatory diagram showing links of hypermedia data.

FIG. 5 is an explanatory diagram showing search auxiliary knowledge for the hypermedia data of FIG. 4;

FIG. 6 is an explanatory diagram showing a link maintenance procedure.

FIG. 7 is an explanatory diagram showing search assistance knowledge for the hypermedia data of FIG. 6;

FIG. 8 is an explanatory diagram showing a link maintenance procedure.

[Explanation of symbols]

 1-4 Data 201 Link destination data acquisition unit 202 Hypermedia database 203 Network 204 Search auxiliary knowledge extraction unit 205 Link search knowledge base 206 Timing generation unit 207 Link information database 208 Link destination check unit 209 Link destination search unit

Claims (2)

(57) [Claims] 1. A hypermedia system for storing, managing, and using hypermedia data in which multimedia information including still images, moving images, audio, and text data are linked by a directional reference link: Means for acquiring link destination hypermedia data existing on another machine via a hypermedia database or a network and providing it to the user; (b) when the link destination data is acquired, Search auxiliary knowledge extraction means for extracting search auxiliary knowledge as storage location or reference link information included in the linked hypermedia data based on the extracted data, and (c) extracted by the search auxiliary knowledge extraction means. A link search knowledge base for changing and accumulating the search auxiliary knowledge, (D) a link information database that stores a list of reference links for checking link destinations; (e) timing generation means for generating timing of link destination check; and (f) a link destination of the reference link can be acquired according to the timing. whether and destination check means to check the link information database, (g) the link destination check means the link information data
A link that cannot be obtained is found in the database
Case, the stored in the link search knowledge base was
Search for search aid knowledge, and search for links that cannot be obtained.
Link that has the same reference link information as the link
A link maintenance system, comprising: a link destination search unit that identifies the output link as a link whose link destination cannot be obtained and notifies a data manager of the result. 2. The hypermedicine based on the identification.
Link that automatically changes the contents of the backup database
2. The link maintenance system according to claim 1, further comprising a first search unit .