Usage Patterns in Cooperative Caching

A. Bhargava and H.P. Dommel (USA)


Cooperative proxy caching, distributed information systems, user patterns, traffic analysis.


The amount of information requested over the World Wide Web has increased enormously during the past decade. Web caching helps to reduce service times, balance the load to origin servers, and brings content closer to the user. Since duplicating and distributing files amongst proxy caches has proved to be insufficient, cooperative caching aims to ameliorate the shortcomings of basic replication caching through inter-cache communication. This paper categorizes and evaluates cooperative caching schemes with regard to user access patterns from established traffic archives. We use cache statistics at the proxy level and discuss possible causes for cache misses with the aim to bring greater understanding to the interplay of access and caching for web documents.

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