Theme search algorithm based on body

A search algorithm and topic technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as the impact on the accuracy of results, and achieve the effects of improving accuracy, improving accuracy, and expressing precision

Inactive Publication Date: 2012-07-04
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is great variability in the user's interest behavior. Once the user's new search behavior does not match the previous interest model, the accuracy of the search results will be greatly affected.

Method used

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  • Theme search algorithm based on body
  • Theme search algorithm based on body

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Embodiment Construction

[0022] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0023] Please refer to figure 1 , figure 1 Shown is a flow chart of an ontology-based topic search algorithm in a preferred embodiment of the present invention. The present invention proposes a topic search algorithm based on ontology, comprising the following steps:

[0024] Step S100: Establish an ontology-based topic model;

[0025] Step S200: matching a suitable member search engine according to different topic models;

[0026] Step S300: Process the search results.

[0027] According to a preferred embodiment of the present invention, the ontology-based topic model is represented by a triplet Topic(C, P, S) to form a topic tree structure, wherein: C represents a noun concept in the topic field with the same attribute A collection of concept classes with behavioral structures; P describes ...

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Abstract

The invention provides theme search algorithm based on a body, which comprises steps of establishing theme models based on the body; matching appropriate member search engines according to different theme models; and processing search results. The theme search algorithm based on the body is the theme search algorithm with good performance based on the body, can effectively meet different search requirements for different themes of different users, and obtains a high precision ratio under the premise of ensuring the recall ratio.

Description

technical field [0001] The invention relates to the field of personalized information retrieval algorithms, and in particular to an ontology-based topic search algorithm. Background technique [0002] Among the many current search services, there are some personalized information search services for different users, such as personalized search services based on user behavior analysis. To a certain extent, identify the differences in the individual information needs of different users. [0003] However, since the user's query topic cannot be accurately determined and described, how to perform topic-based meta-search based on the user's different search topics during the search process has become a research hotspot for many scholars in the field of information retrieval. [0004] In some personalized information services, based on tracking the user's behavior, the user's interest model is established to determine the user's interested fields and topics. However, there is gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 闫俊英
Owner SHANGHAI DIANJI UNIV
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