Spoerri, Anselm How the Overlap Between the Search Results of Different Retrieval Systems Correlates with Document Relevance., 2005 . In 68th Annual Meeting of the American Society for Information Science and Technology (ASIST), Charlotte (US), 28 October - 2 November 2005. [Conference paper]
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English abstract
This paper provides an analysis of the overlap between the search results of retrieval systems that participated in TREC 3, 6, 7 and 8 to provide empirical support for some of the key assumptions guiding the design of data fusion methods. It shows that the potential relevance of a document increases exponentially as the number of search methods retrieving it increases – called the Authority Effect. It also shows that documents higher up in ranked lists and found by more systems are more likely to be relevant – called the Ranking Effect. Both effects can help explain why major data fusion methods perform well.
Item type: | Conference paper |
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Keywords: | information relevance ; search services |
Subjects: | I. Information treatment for information services > IC. Index languages, processes and schemes. |
Depositing user: | Norm Medeiros |
Date deposited: | 10 Mar 2006 |
Last modified: | 02 Oct 2014 12:02 |
URI: | http://hdl.handle.net/10760/7006 |
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