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Automatic Web News Extraction Based on DS Theory Considering Content Topics

  • Kaihang Zhang
  • Chuang Zhang
  • Xiaojun Chen
  • Jianlong Tan
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10860)

Abstract

In addition to the news content, most news web pages also contain various noises, such as advertisements, recommendations, and navigation panels. These noises may hamper the studies and applications which require pre-processing to extract the news content accurately. Existing methods of news content extraction mostly rely on non-content features, such as tag path, text layout, and DOM structure. However, without considering topics of the news content, these methods are difficult to recognize noises whose external characteristics are similar to those of the news content. In this paper, we propose a method that combines non-content features and a topic feature based on Dempster-Shafer (DS) theory to increase the recognition accuracy. We use maximal compatibility blocks to generate topics from text nodes and then obtain feature values of topics. Each feature is converted into evidence for the DS theory which can be utilized in the uncertain information fusion. Experimental results on English and Chinese web pages show that combining the topic feature by DS theory can improve the extraction performance obviously.

Keywords

Content extraction Dempster-Shafer theory Maximal compatibility blocks Information fusion 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Kaihang Zhang
    • 1
    • 2
  • Chuang Zhang
    • 1
  • Xiaojun Chen
    • 1
  • Jianlong Tan
    • 1
  1. 1.Institute of Information EngineeringChinese Academy of SciencesBeijingChina
  2. 2.School of Cyber SecurityUniversity of Chinese Academy of SciencesBeijingChina

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