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Retrieval system oriented to meta keywords of source document

A retrieval system and keyword technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of time lag and reduced importance, and achieve increased rationality, low computing resource requirements, and time and space. low-complexity effects

Inactive Publication Date: 2012-03-28
刘宏
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AI Technical Summary

Problems solved by technology

[0022] 2) If a keyword appears in more documents, then the role of this word in differentiating documents is lower, so its importance should be reduced accordingly
[0044] Extensive calculations and the need for computational resources are one of the reasons why common retrieval schemes cause time lags when source documents are updated

Method used

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  • Retrieval system oriented to meta keywords of source document
  • Retrieval system oriented to meta keywords of source document
  • Retrieval system oriented to meta keywords of source document

Examples

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Embodiment Construction

[0079] Such as Figure 8 As shown, a retrieval system for meta-keywords of source documents includes: source document receiving module, definition module, index module, retrieval module, retrieval result processing module and source document and its meta-keyword management module.

[0080] Such as Figure 9 As shown, the workflow of the source document and its meta-keyword management module is: the source document receiving module receives the source document, after completion, the source document and its meta-keyword management module sends instructions to the definition module, and after the definition module completes the definition , the source document and its meta-keyword management module sends instructions to the index module. After the index module finishes indexing, the source document and its meta-keyword management module sends instructions to the retrieval module. The management module issues instructions to the retrieval result processing module to process the r...

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Abstract

The invention discloses a retrieval system oriented to meta keywords of a source document. The retrieval system comprises a source document receiving module, a definition module, an indexing module, a retrieving module, a retrieving result processing module and a source document and meta keywords management module. The retrieving result processing module comprehensively considers the distributioncharacter of the semantic weight of the meta keywords when sequencing the source document in a retrieving result set. The invention has the positive effects of introducing the meta keywords as a middle layer to ensure the source document to form loose coupling with the index thereof, introducing the semantic weight of the meta keywords and processing the distribution character of the semantic weight of the meta keywords, thus completing the compensation of the semantic weight of the meta keywords during sequencing computation and increasing the reasonability of the sequencing of the retrieving result. The invention has lower requirement on computing resources.

Description

technical field [0001] The invention relates to a keyword-based document retrieval system, in particular to a source document meta-keyword-oriented retrieval system. Background technique [0002] Existing information retrieval technologies, such as Internet search engines (or "search engines" in common parlance), can be roughly divided into the following working principles: [0003] 1) Information collection: The information collection of search engines is basically automatic. Search engines use automated search robots called spiders to follow the hyperlinks on each web page. The robot program links to it according to the hyperlinks of the web pages, just like the saying in daily life "one pass ten, ten pass hundreds...", starting from a few web pages, connecting to the database to all others Links to web pages. In theory, robots can traverse most web pages if there are proper hyperlinks on the web pages. [0004] 2) Collation of information: The process of collation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 刘宏
Owner 刘宏
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