PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Lempel R., Silvestri F., Donato D. Web search result caching and prefetching. Ling Liu, M. Tamer Özsu (eds.). New York: Springer, 2009.
 
 
Abstract
(English)
Caching is a well-known concept in systems with multiple tiers of storage. For simplicity, consider a system storing N objects in relatively slow memory, that also has a smaller but faster memory buffer ofproposed a two-level caching scheme that combines caching of search results with the caching of frequently accessed postings lists. Prefetching of search engine results was studied from a theoretical point of view by Lempel and Moran in 2002 [6]. They observed that the work involved in query evaluation scales in a sub-linear manner with the number of results computed by the search engine. Then they proceeded to minimize the computations involved in query evaluations by opti- mizing the number of results computed per query. The optimization is based on a workload function that models both (i) the computations performed by the search engine to produce search results and (ii) the probabilistic manner by which users advance through result pages in a search session.
URL: http://www.springerlink.com/content/k4397767ln128651/
DOI: 10.1007/978-0-387-39940-9_464
Subject Search engine caching and prefetching
Search engine query result caching
Paging in Web search engines
A.1 INTRODUCTORY AND SURVEY


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