Intelligent retrieval system and method based on domain ontology

Abstract

The invention relates to the field of Chinese information retrieval (IR), in particular to an intelligent retrieval method based on domain ontology (DO) and an intelligent retrieval system including the method. The system comprises an ontology inference module used for analyzing natural query language input by users, an index processing module used for creating an index database, a query processing module used for performing special query, and a result optimizing ordering module used for processing query results. In addition, the system also comprises a domain library, a data repository, and the index database, which are built based on a certain domain. The intelligent retrieval system and the intelligent retrieval method based on the domain ontology make full use of concepts in the domain library and interrelation thereof, can correctly understand the demand of users, optimize retrieval results, return professional domain information for the users more accurately and comprehensively, and significantly improve the property of the information retrieval in the field of professional technology.

Description

technical field [0001] The invention relates to the field of Chinese information retrieval (IR), in particular to an intelligent retrieval method based on domain ontology (Domain ontology), and an intelligent retrieval system including the method. Background technique [0002] The emergence of information retrieval technology is a milestone in the history of network development, which brings great convenience to network users. Google and Baidu are typical representatives in this field. As long as the user enters a search term or a search sentence, the information retrieval system will quickly return all web pages containing the search term or search sentence for the user according to a certain sorting rule. Therefore, for an information retrieval system, it is very important to correctly understand the user's retrieval needs and optimize the results sorting method. [0003] However, the existing general search engines cannot accurately understand and process all kinds of in...

AI Technical Summary

Problems solved by technology

At present, in the related intelligent retrieval technology, there is no sentence pattern matching method based on user input on the domain ontology and an optimal ranking method for semantic distance measurement results, and there is no intelligent retrieval system that includes this method, which leads to a problem for the intelligent retrieval system. A series of technical problems, did not significantly improve and improve the retrieval performance compared with the traditional retrieval system as expected

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