Social Bookmarking Induced Active Page Ranking

Tsubasa TAKAHASHI  Hiroyuki KITAGAWA  Keita WATANABE  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E93-D   No.6   pp.1403-1413
Publication Date: 2010/06/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Info-Plosion)
Category: Information Retrieval
Keyword: 
social bookmark,  activation analysis,  ranking algorithm,  web mining,  

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Summary: 
Social bookmarking services have recently made it possible for us to register and share our own bookmarks on the web and are attracting attention. The services let us get structured data: (URL, Username, Timestamp, Tag Set). And these data represent user interest in web pages. The number of bookmarks is a barometer of web page value. Some web pages have many bookmarks, but most of those bookmarks may have been posted far in the past. Therefore, even if a web page has many bookmarks, their value is not guaranteed. If most of the bookmarks are very old, the page may be obsolete. In this paper, by focusing on the timestamp sequence of social bookmarkings on web pages, we model their activation levels representing current values. Further, we improve our previously proposed ranking method for web search by introducing the activation level concept. Finally, through experiments, we show effectiveness of the proposed ranking method.