XML (extensible markup language) document spectrum clustering method based on affinity propagation

A technology of neighbor propagation and spectral clustering, which is applied in the field of Web data management and can solve problems such as low retrieval accuracy.
CN102799680AInactive Publication Date: 2012-11-28NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Publication Date
2012-11-28
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an XML (extensible markup language) document spectrum clustering method based on affinity propagation in the technical field of Web data management. The method disclosed by the invention comprises the following steps: representing an XML document by virtue of a characteristic vector formed by an XML path; then calculating the initial similarity between every two XML document vectors to obtain an initial similarity matrix W, and further determining an initial affinity relation matrix N; then correcting the similarity between every two implied similar XML document vectors by adopting an affinity propagation algorithm, so as to obtain a final similarity matrix A; and finally determining the clustering number and clustering result by applying a first specified method according to the final similarity matrix A. According to the method disclosed by the invention, the initial similarity matrix between XML documents obtained by adopting the traditional similarity calculation method is corrected by adopting the affinity propagation algorithm, and similarity between the implied similar XML documents can be reflected; and the method disclosed by the invention is independent of sequence of the XML documents and is applicable to the clustering of XML document retrieval results which are arranged in any sequence.
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Description

technical field

[0001] The invention belongs to the technical field of Web data management, in particular to an XML document spectrum clustering method based on neighbor propagation. Background technique

[0002] Due to the massive appearance and wide application of XML format data on the web, the demand for searching XML documents is becoming more and more urgent. For a large number of free XML documents on the Internet, keyword-based XML document search technology does not require users to learn and master complex query languages, nor does it require users to understand XML schemas, so it is suitable for the retrieval needs of ordinary users. However, due to the phenomenon of synonyms and polysemous words in the element tags and element contents in the XML document, there will be a large number of documents that are not related to the user's retrieval semantic requirements in the retrieval result set based on the XML keyword search, the retrieval result accuracy is low, an...

Claims

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