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Research on the Technology of Chinese Web Page Automatic Categorization Based on Structural Information

Author: LiuXin
Tutor: ZhangYong
School: Nanjing University of Aeronautics and Astronautics
Course: Applied Computer Technology
Keywords: Web Page Automatic Categorization Naive Bayes Structure is divided Combined Classifier Hierarchical classification
CLC: TP393.092
Type: Master's thesis
Year: 2010
Downloads: 59
Quote: 0
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Abstract


The rapid development of Internet technology to promote the explosive growth of the network information . How to find valuable information from these exceptionally rich network information resources , has become a field of information processing urgent problem . Page automatic classification technology can solve the information clutter to a greater extent , and the problem of \Web page as a semi- structured document , containing a wealth of structural information . Most Chinese page classification tend to a web page into plain text processing , use plain text classification techniques to classify pages . These studies ignore the text where the structure of the classification , it is difficult to achieve satisfactory classification results . Starting from the analysis of site characteristics , and study how to use the page structure information to enhance web page classification effect . The paper first analyzes the research status of Chinese web page classification problems, carried out a detailed analysis and discussion of the key technologies involved in the classification of Chinese web pages . Then study the web classification method based on structural information . Web content based on the idea of the structure is divided in accordance with the structural elements which they divide , each structure element individually training a sub- classification , the results of the sub - classifier combining web classification combined classifiers . Experiments show that the combined classifiers method can improve the classification results . Finally, research web page hierarchical classification method based on structural information structure by web - based classification method used in hierarchical classification is proposed based on the structure by hierarchical classification method . The experiments show that hierarchical classification can be overcome the plane classification problems , reduce the time complexity of the classification , at the same time also improved in terms of classification accuracy . Hierarchical classification method based on the structure by hierarchical classification method is superior to the traditional topic-based text , can achieve better classification results .

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