The Importance of Prior Probabilities for Entry Page Search

Kraaij, W. and Westerveld, T.H.W. and Hiemstra, D. (2002) The Importance of Prior Probabilities for Entry Page Search. In: Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval (SIGIR 2002), 11-15 Aug 2002, Tampere, Finland.

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Abstract:	An important class of searches on the world-wide-web has the goal to find an entry page (homepage) of an organisation. Entry page search is quite different from Ad Hoc search. Indeed a plain Ad Hoc system performs disappointingly. We explored three non-content features of web pages: page length, number of incoming links and URL form. Especially the URL form proved to be a good predictor. Using URL form priors we found over 70% of all entry pages at rank 1, and up to 89% in the top 10. Non-content features can easily be embedded in a language model framework as a prior probability.
Item Type:	Conference or Workshop Item
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Databases (DB)
Link to this item:	http://purl.utwente.nl/publications/63507
Official URL:	http://doi.acm.org/10.1145/564376.564383
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