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 access pattern, and uses it to determine which strategy it should follow. When a change is detected in its access pattern, it re-evaluates its strategy to adapt to the new conditions. Adaptation comes at an acceptable cost considering to the benefits of per-document replication strategies. vrije Universiteit Faculty of Mathematics and Computer Science 1 Introduction Most Web users suffer from slow document transfers. The reasons for such high latencies include distance between the user and the document, and load of the intermediate network. One common solution is to maintain copies of ..
