Methods for comparing rankings of search engine results

Judit Bar-Ilan, Mazlita Mat-Hassan, Mark Levene

Research output: Contribution to journalArticlepeer-review

103 Scopus citations


In this paper we present a number of measures that compare rankings of search engine results. We apply these measures to five queries that were monitored daily for two periods of 14 or 21 days each. Rankings of the different search engines (Google, Yahoo! and Teoma for text searches and Google, Yahoo! and Picsearch for image searches) are compared on a daily basis, in addition to longitudinal comparisons of the same engine for the same query over time. The results and rankings of the two periods are compared as well.

Original languageEnglish
Pages (from-to)1448-1463
Number of pages16
JournalComputer Networks
Issue number10
StatePublished - 14 Jul 2006


  • Longitudinal analysis
  • Ranking
  • Search engines
  • Similarity measures


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