Internet object caching based on semantics and access history

Alcides CalsavaraMarcelo Roberto Schuck

This paper presents a novel Internet object cache replacement strategy named LSR/H where semantics of objects and subject access history are employed as heuristics to evict objects from cache. It is shown that LSR/H performs better than well-established replacement strategies when multiple threads of interest exist and the multiple semantics stability property is verified. Our work shows that, depending on cache size, LSR/H can perform around 15% better than well-established replacement strategies, thus permiting an important gain in network performance. It can be a starting point to redesign the caching scheme currently in use in order to achieve better network performance. Also, our research work can be exploited in specific domains of applications, such as digital libraries and e-commerce, where taxonomy for objets are often well-established.

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