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Document retrieving system, document retrieving apparatus, and method thereof

A document retrieval and document technology, applied in special data processing applications, instruments, electronic digital data processing, etc., can solve problems such as increasing network traffic, prolonging retrieval time, and wasting memory resources.

Active Publication Date: 2007-10-24
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as the number of servers or stored documents increases, the data volume of the index to be maintained increases, which causes waste of memory resources and prolongs the time required for retrieval
Also, in case a document is registered on a certain server, its index is transmitted across the network to all other servers, which increases network traffic

Method used

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  • Document retrieving system, document retrieving apparatus, and method thereof
  • Document retrieving system, document retrieving apparatus, and method thereof
  • Document retrieving system, document retrieving apparatus, and method thereof

Examples

Experimental program
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Embodiment 1

[0062] 1A and 1B are diagrams describing features of a configuration of a document retrieval system according to a first embodiment of the present invention.

[0063] FIG. 1A is a block diagram describing the configuration of a conventional document retrieval system (multi-server retrieval system). Here, the user operates the PC to transmit retrieval conditions (keywords) to each server in order to make a retrieval request. Each server stores a document and an index associated with the document. When each server receives a retrieval request from a PC, it compares the retrieval condition received from the PC with an index stored therein, and notifies the PC of the retrieval result. The PC merges the retrieval results notified by the server to display the merged results to the user.

[0064] If the number of servers to which PCs make retrieval requests is large, performing retrieval may be time-consuming. Especially in the case where the PC waits to receive the retrieval resu...

Embodiment 2

[0126] Next, a second embodiment of the present invention is described. In the first embodiment, indexes of documents stored in two or more document servers 105 to 107 are collected in a document server storing the most corresponding documents, and the PC 103 makes a retrieval request to the collection destination document server.

[0127] In contrast, in the second embodiment, the index is collected to the device (in the first embodiment, the PC 103 ) requesting retrieval. Therefore, when a keyword for which a corresponding index has been collected is specified as a retrieval condition, the device can perform retrieval from documents stored in each document server by referring to the index collected in its own device (PC103). That is, since there is no need to request retrieval through the Internet, retrieval efficiency can be further improved.

[0128] FIG. 12 is a diagram showing features of a configuration of a document retrieval system according to a second embodiment of...

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Abstract

Each of two or more document management server stores a document and index data corresponding to the document. Of the index data stored in the two or more document management servers, index data corresponding to a document that satisfies a first retrieval condition is collected for storage. When a user requests retrieval based on a second retrieval condition, it is determined whether the first retrieval condition and the second retrieval condition are the same, and when the first and second conditions are the same, the document retrieval according to the user's instruction is performed by referring to the collected index data.

Description

technical field [0001] The present invention relates to a document retrieval system and document retrieval apparatus and methods thereof for retrieving documents from documents registered in two or more document management servers connected through a network. Background technique [0002] A document retrieval system is known as a system in which two or more documents are stored in a database such as a document server, and a user retrieves a desired document from the stored documents. In such a system, for example, when registering a document, keywords contained in document data are extracted to generate an index. Indexes generated in this manner are managed separately from the document in a manner associated with the document. [0003] When a user inputs a keyword for retrieving a document, it is determined whether the input keyword is included in the index. If the index contains the keyword, the document corresponding to the index is determined as the document to be retri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 佐藤正晃福田慎
Owner CANON KK