WWW2006 - What's Really New on the Web? Identifying New Pages from a Series of Unstable Web Snapshots
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What's Really New on the Web? Identifying New Pages from a Series of Unstable Web Snapshots

  • Masashi Toyoda, Institute of Industrial Science, University of Tokyo, Japan
  • Masaru Kitsuregawa, Institute of Industrial Science, University of Tokyo, Japan

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Track: Data Mining

Identifying and tracking new information on the Web is important in sociology, marketing, and survey research, since new trends might be apparent in the new information. Such changes can be observed by crawling the Web periodically. In practice, however, it is impossible to crawl the entire expanding Web repeatedly. This means that the novelty of a page remains unknown, even if that page did not exist in previous snapshots. In this paper, we propose a novelty measure for estimating the certainty that a newly crawled page appeared between the previous and current crawls. Using this novelty measure, new pages can be extracted from a series of unstable snapshots for further analysis and mining to identify new trends on the Web. We evaluated the precision, recall, and miss rate of the novelty measure using our Japanese web archive, and applied it to a Web archive search engine.

Citation

Toyoda, M. and Kitsuregawa, M. 2006. What's really new on the web?: identifying new pages from a series of unstable web snapshots. In Proceedings of the 15th International Conference on World Wide Web (Edinburgh, Scotland, May 23 - 26, 2006). WWW '06. ACM Press, New York, NY, 233-241.
DOI= http://doi.acm.org/10.1145/1135777.1135815

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