Internet Mathematics

Time-Aware Authority Rankings

Klaus Berberich, Michalis Vazirgiannis, and Gerhard Weikum

Full-text: Open access

Abstract

The link structure of the web is analyzed to measure the authority of pages, which can be taken into account for ranking query results. Due to the enormous dynamics of the web, with millions of pages created, updated, deleted, and linked to every day, temporal aspects of web pages and links are crucial factors for their evaluation. Users are interested in important pages (i.e., pages with high authority score) but are equally interested in the recency of information. Time—and thus the freshness of web content and link structure—emanates as a factor that should be taken into account in link analysis when computing the importance of a page. So far only minor effort has been spent on the integration of temporal aspects into link-analysis techniques. In this paper we introduce T-Rank Light and T-Rank, two link-analysis approaches that take into account the temporal aspects freshness (i.e., timestamps of most recent updates) and activity (i.e., update rates) of pages and links. Experimental results show that T-Rank Light and T-Rank can produce better rankings of web pages.

Article information

Source
Internet Math. Volume 2, Number 3 (2005), 301-332.

Dates
First available in Project Euclid: 16 June 2006

Permanent link to this document
http://projecteuclid.org/euclid.im/1150474885

Mathematical Reviews number (MathSciNet)
MR2212368

Zentralblatt MATH identifier
05035616

Citation

Berberich, Klaus; Vazirgiannis, Michalis; Weikum, Gerhard. Time-Aware Authority Rankings. Internet Mathematics 2 (2005), no. 3, 301--332. http://projecteuclid.org/euclid.im/1150474885.


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