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Semantic web object ordering method based on Pagerank

A sorting method and Semantic Web technology, applied in the field of search engines, can solve the problems of insufficient utilization and achieve the effect of wide applicability and high sorting accuracy

Inactive Publication Date: 2009-03-18
ZHEJIANG UNIV
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Problems solved by technology

[0004] At the same time, a common shortcoming of existing methods is that they do not make full use of the information contained in the link network structure

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  • Semantic web object ordering method based on Pagerank

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Embodiment Construction

[0026] In order to make the purpose, technical solutions 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:

[0027] There are two key points in the implementation of the present invention: the establishment of the semantic ranking network, and the calculation of the sorting value when inquiring. Among them, the semantic sorting network is the basis for the implementation of the present invention.

[0028] 1. Collect Semantic Web documents from the Internet and analyze the Semantic Web terms in them

[0029] The process of collecting Semantic Web documents utilizes the web crawler technology commonly used in web searches today, which is a program that automatically extracts web pages and downloads web pages and semantic documents from the World Wide Web. It starts from the URL of one or several initial webpages, obtains the URLs on the initial ...

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Abstract

The invention relates to a semantic web object-ordering method based on Pagerank, which comprises steps of (1) collecting semantic web files from internet and acquiring semantic web terms from the files, wherein the semantic web terms refer to semantic elements in the semantic web files, equal to words which have types of subjects or objects, or attributes of predicates, (2) adding additional paths among the semantic web files, among the semantic web terms, and between the semantic web files and the terms so as to construct a semantic object web with rich links, and (3) calculating order values for objects of the semantic web by adopting Pagerrank link analysis algorithm according to the adjacent relation of the semantic object web with rich links. The invention has the advantages that the invention is established on the base of the semantic object ordering web containing richer links and is added with self-definable links and weights thereof which are retractable in terms of describing network links, thereby guaranteeing higher ordering accuracy and wider application.

Description

technical field [0001] The invention relates to search engines, search sorting and semantic network fields, in particular to a Pagerank-based semantic network object sorting method. Background technique [0002] In recent years, search engines have been paid more and more attention because they can find the information they need for users in almost unlimited resources. Excellent search engines are also emerging, such as Google, ODP, etc. Among them, the third-generation search engines based on link analysis (such as Google) have become the mainstream of current search engines by virtue of their high search accuracy. [0003] However, the current search engine still has the problem of low precision, and the search results are filled with too much useless information. The Semantic Web emerged as the times require, but the traditional network ranking model cannot analyze the internal structure of the Semantic Web files, so it is not suitable for the Semantic Web. Therefore, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 吴朝晖宓金华姜晓红
Owner ZHEJIANG UNIV
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