Semantic ontology retrieval system and method

A retrieval system and semantic technology, applied in the field of information retrieval, can solve problems such as the inability to identify semantic information, unsatisfactory matching efficiency between keywords and semantic concepts, and low search accuracy, so as to achieve the effect of improving accuracy

Inactive Publication Date: 2008-04-30
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0016] To sum up, although the existing text retrieval technology can search for files containing query keywords, it cannot identify the semantic information of the searched files; and the existing semantic retrieval technology no longer performs keyword retrieval, resulting in The obtained files contain too many results that do not match the user's query information, and the matching efficiency based on user query keywords and semantic concept vocabulary is not satisfactory
Therefore, the search accuracy of the existing retrieval technology is not high

Method used

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  • Semantic ontology retrieval system and method
  • Semantic ontology retrieval system and method

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] image 3 It is a structural block diagram of a semantic ontology-based retrieval system according to an embodiment of the present invention. Such as image 3 As shown, the system includes: a search interface module 301, a document semantic classification rule engine 302, a search processing module 303, a semantic ontology reasoning engine 304, an annotation ontology library 305, an index database 306, an index processing module 307, a file database 308 and a network file Crawling module 309 . Wherein, the search processing module 303 includes: a text search processing unit 310, a semantic ontology search processing unit 311 and a sorting processing unit 312; the index database 306 includes: a text index 315 and a semantic ontolog...

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Abstract

The inventive embodiment discloses an indexing system based on a semantic body. The system comprises a semantic body index database and a semantic body indexing processing unit. The semantic body indexing processing unit is used for acquiring a text hit file list, matching the text hit file list with a semantic body index in the semantic body index database to obtain a file semantic classification list. The indexing system can identify the semantic information of a file to be indexed, and the semantic classification result is presented in the searching result. The invention also discloses an indexing method based on semantic body, which comprises constructing semantic body index for the file with constructed text index, and performing semantic body index matching to the text matching result when user is searching, so that the semantic classification is presented in the final output result based on the conventional text matching result, thereby facilitating user's searching.

Description

technical field [0001] The invention relates to information retrieval technology, in particular to a semantic ontology-based retrieval system and method. Background technique [0002] With the rapid development of retrieval technology, text-based information retrieval technology has gradually matured, forming a complete set of ideas and perfect algorithms, and has been widely used in various search engines, such as Google (Google), AltaVista, etc. , Lycos, Yahoo (Yahoo), etc. [0003] figure 1 It is a structural block diagram of an existing text search engine. Such as figure 1 As shown, the existing text search engine includes: spider control module 101, uniform resource location (URL) database 102, web spider 103, URL extraction module 104, webpage database 105, link information extraction module 106, text index module 107, link Database 108 , Index Database 109 , Web Page Rating Module 110 and Query Server 111 . [0004] The web spider 103 crawls web pages from the In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 王伟舒琦方琦钟杰萍
Owner HUAWEI TECH CO LTD
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