Replication and caching strategies are being used to reduce user perceived delay and wide area network traffic. Numerous such strategies have been proposed to manage replication while maintaining consistency among the replicas. In earlier research, we demonstrated that no single strategy can perform optimal for all documents, and proposed a system where strategies are selected on a per-document...

Research on replication techniques to reduce tra c and minimize the latency of information retrieval in a distributed system has concentrated on client based caching whereby recently frequently accessed informa tion is cached at a client or at a proxy thereof in anticipation of future accesses We believe that such myopic solutions focussing exclusively on a particu lar client or set of clients ...

Research on replication techniques to reduce traac and minimize the latency of information retrieval in a distributed system has concentrated on client-based caching, whereby recently/frequently accessed information is cached at a client (or at a proxy thereof) in anticipation of future accesses. We believe that such myopic solutions|focussing exclusively on a particular client or set of client...

In this technical report we describe a storage system aimed on supporting collaborative applications in large-scale environments that include mobile computers. To maximize availability, it uses weakly consistent server replication and client caching with a read any/write any model of data access. To allow easy management of concurrent updates it provides an object framework that isolates the pr...

Content adaptation is an essential concept to meet the heterogeneous requirements of clients in Pervasive Computing environments. However, content adaptation interferes with replication applied in content networks to improve the performance of information access. Leveraging the advantages of replication in the world of Pervasive Computing is the subject of this paper. We introduce the notion of...

This paper outlines the need for replication of resources on the Internet to combat the huge growth in user population and bandwidth requirements. It describes deeciencies in an existing hierarchical ca-ching scheme for document replication and presents an alternative approach that more widely distributes the load across multiple servers, and provides additional resource discovery features. A s...

Data replication is particularly important for mobile computers, since disconnected or poorly connected portable computers must rely primarily on their own data resources. If those resources also need to be shared by other users, or require a more stable permanent location for backup and reliability, the best alternative is to replicate a copy of the data on the portable computer. Full replicat...

Caching and replication techniques can improve latency of the Web, while reducing network traffic and balancing load among servers. However, no single strategy is optimal for replicating all documents. Depending on its access pattern, each document should use the policy that suits it best. This paper presents an architecture for adaptive replicated documents. Each adaptive document monitors its...

Pure peer-to-peer (P2P) networks is widely used, however they broadcast query packets, and cause excessive network traffic in particular. Addressing this issue, we propose a new strategy for content replication which prioritizes popular and attracting contents. Our strategy is based on replication adjustment, being cooperated with index caching, as well as LRU-based content replacement, and a m...