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Semantic indexing-based data retrieval method

A data retrieval and semantic technology, applied in the field of data retrieval based on semantic index, can solve the problem that documents cannot effectively solve users

Inactive Publication Date: 2011-07-06
PERA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that only formal matching is performed in the retrieval method of the prior art, so that the retrieved documents cannot effectively solve the user's technical problems

Method used

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  • Semantic indexing-based data retrieval method
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  • Semantic indexing-based data retrieval method

Examples

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Comparison scheme
Effect test

example 1

[0067] Example 1: How to start / r / v car / n? / wp

[0068] (2) Subject ‖ verb + interrogative pronoun [object]

example 2

[0069] Example 2: British / j's / u capital / n selected / v where / r? / wp

[0070] (3) The main ‖ interrogative pronoun [the head of the predicate] (+"了" / "着")

example 3

[0071] Example 3: What happened to him / r / u? / wp

[0072] (4) The main ‖ interrogative pronoun [状]+verb / form / ...

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PUM

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Abstract

The invention provides a semantic indexing-based data retrieval method, which comprises the following steps of: performing semantic analysis on a user question, and extracting the functional description of the user question as a semantic retrieval formula, wherein the functional description is represented by 'action-object'; performing the semantic analysis on a technical document, and extracting the functional description of the technical document as a document semantic index; and matching the semantic retrieval formula with the document semantic index. By the method, the timeliness of technical data and a technical manual in assistance in the maintenance of a technical system is effectively improved, and the document effectively answering the user question can be retrieved with higher quality.

Description

Technical field [0001] The invention relates to the field of data retrieval, and more specifically, to a data retrieval method based on semantic indexing. Background technique [0002] In the field of engineering technology, the scale and complexity of technical systems continue to expand, making their maintenance more and more difficult. The number of technical documents used to help maintain technical systems such as technical materials and technical manuals has also increased dramatically. How to retrieve and timely provide the information required by users in a large number of technical documents is a practical problem that needs to be solved urgently. Traditional keyword retrieval methods occupy a very important position in the development of information retrieval, but their shortcomings are also very obvious. The keywords entered by the user cannot describe the technical problem that the user wants to find. The keyword index of the searched technical document is only a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 赵琦高建忠段海波宁保明
Owner PERA
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