Title
Correlation of Expert and Search Engine Rankings
Abstract
In previous research it has been shown that link-based web page metrics can be used to predict experts' assessment of quality. We are interested in a related question: do expert rankings of real-world entities correlate with search engine rankings of corresponding web resources? For example, each year US News & World Report publishes a list of (among others) top 50 graduate business schools. Does their expert ranking correlate with the search engine ranking of the URLs of those business schools? To answer this question we con- ducted 9 experiments using 8 expert rankings on a range of academic, athletic, financial and popular culture topics. We compared the expert rankings with the rankings in Google, Live Search (formerly MSN) and Yahoo (with list lengths of 10, 25, and 50). In 57 search engine vs. expert comparisons, only 1 strong and 4 moderate correlations were statistically significant. In 42 inter-search engine comparisons, only 2 strong and 4 moderate correlations were statistically signif- icant. The correlations appeared to decrease with the size of the lists: the 3 strong correlations were for lists of 10, the 8 moderate correlations were for lists of 25, and no correla- tions were found for lists of 50.
Year
Venue
Keywords
2008
Clinical Orthopaedics and Related Research
search engine,statistical significance,web pages,popular culture,digital library,rank correlation
Field
DocType
Volume
Web resource,Data science,Data mining,World Wide Web,Search engine,Information retrieval,Ranking,Web page,Computer science,Correlation,Popular culture
Journal
abs/0809.2
Citations 
PageRank 
References 
3
0.50
18
Authors
3
Name
Order
Citations
PageRank
Michael L. Nelson11458198.74
Martin Klein23210.07
Manoranjan Magudamudi330.50