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Information retrieval optimizing method based on domain ontology

A technology of domain ontology and optimization method, applied in the network field, can solve problems such as user dissatisfaction

Inactive Publication Date: 2011-06-01
熊晶 +2
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Since these are useless information irrelevant to the user's purpose, the user is obviously dissatisfied with such a result

Method used

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  • Information retrieval optimizing method based on domain ontology
  • Information retrieval optimizing method based on domain ontology
  • Information retrieval optimizing method based on domain ontology

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Embodiment Construction

[0048] The present invention will be further described in detail through a specific embodiment in the field of marine ecology below.

[0049] The present invention proposes an information retrieval optimization method based on domain ontology, taking the marine ecological domain as an example, combined with the accompanying drawings, the specific description is as follows.

[0050] The work flow chart of key steps of the present invention is as figure 2 As shown, taking the marine ecological field as an example, when a user submits the query "DIP", the specific implementation steps are:

[0051] 1. The server creates a marine ecological ontology (Ontology), which is stored in the format of ocean.ont, and its ontology fragments are as follows: figure 1 shown;

[0052] 2. On the client side through image 3 In the search interface shown, submit the query keyword "DIP" for query (Portal);

[0053] 3. The server obtains the query keyword submitted by the user, and uses HozoA...

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Abstract

The invention provides an information retrieval optimizing method based on domain ontology, comprising the steps of: obtaining query key words submitted by users via a retrieval interface of a retrieval system; performing lexeme expansion for the query key words submitted by users via domain ontology inference in a desired domain of users and according to the built domain ontology, so as to obtain one or more sets of new query strings; submitting the expanded query strings to one or more search engines for retrieval; performing repetition removal and re-sequencing integration for the results fed back by the various search engines; displaying the final result to the user via the retrieval interface. In the invention, the efficiency of the information retrieval relevant to the domain is improved by the lexeme advantage of the domain ontology.

Description

technical field [0001] The invention relates to a network technology, specifically an information retrieval method based on a search engine. Background technique [0002] The main means for people to obtain information from the Internet is to use search tools, such as Google, Baidu, Yahoo, etc. The working principle of a search engine basically includes three processes: (1) collect information from the Internet, and regularly crawl the information of all web pages on the Internet with web spiders. (2) Organize information and build an index database. The analysis and indexing system program analyzes the collected web pages, and extracts URL links, coding types, keywords contained in the page content, keyword positions, generation time, size, and others of relevant web pages. Information such as the link relationship of the webpage is calculated according to a certain correlation algorithm to obtain the relevance (or importance) of each webpage for each keyword in the page c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 熊晶王爱民徐建良王继鹏张长青郭涛梁燕军孙华
Owner 熊晶
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