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Entendendo os Efeitos da Localidade de Referência em Hierarquias de Caches na Web

Fernando DuarteVirgílio Augusto Fernandes AlmeidaFabrício Benevenuto

This work presents an extensive evaluation of the filtering effect thatoccurs in proxy servers organized as a hierarchy of caches. Using a recentlyproposed model called ADF (Aggregation, Disaggregation and Filtering) andentropy as a metric for Web traffic characterization, we present an evaluationof the effects that the locality of reference of request streams suffers when passingthrough a hierarchy of caches. Moreover, we consider the use of averageentropy for the comparison of reference locality among streams and we presentthe necessary information so that entropy can be dynamically calculated.

http://www.lbd.dcc.ufmg.br/colecoes/ctic/2005/004.pdf

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