in this paper by combining caching and replication techniques proposed a hybrid heuristic method based on the greedy algorithm to use the benefit of each other techniques. the algorithm in each interaction compares all the contents and one that made the best benefit value is selected for replication. the hybrid approach tested in a simulation environment and the results show that hybrid algorit...

Web Caching and replication have received considerable attention in the past years due to effectiveness in reducing client response time and network traffic. In this paper we describe a tool to improving the Web caching and replication study. An important difference with other tools is this tool try to take advantage of two tools very useful in caching and computer networks study, Proxycizer[Ga...

Web caching and replication tune capacity with performance and they have become essential components of the Web. In practice, caching and replication techniques have been applied in proxy servers and Content Distribution Networks (CDNs) respectively. In this paper, we investigate the benefits of integrating caching policies on a CDN’ s infrastructure. Using a simulation testbed, our results ind...

Introduction As the Internet has become an essential part of everyday life, hundreds of millions of users now connect to the Internet. At the same time, more resource-hungry and performance-sensitive applications have emerged. Expectations of scalability and performance have made caching and replication common features of the infrastructure of the Web. By directing the workload away from possib...

Coherent wide-area data caching can improve the scalability and responsiveness of distributed services such as wide-area le access, database and directory services, and content distribution. However, distributed services differ widely in the frequency of read/write sharing, the amount of contention between clients for the same data, and their ability to make tradeoffs between consistency and av...

Web caching is an important technology for reducing Internet access latency, alleviating network traffic, and spreading server load. An important issue that affects the performance of web caching is caching architecture, in which several caches are usually federated for making caches cooperate on a large scale and effectively increase the cache population. Transparent data replication is such a...

The increased using of the Internet and its accelerated growth leads to reduced network bandwidth and the capacity of servers; therefore, the quality of Internet services is unacceptable for users while the efficient and effective delivery of content on the web has an important role to play in improving performance. Content distribution networks were introduced to address this issue. Replicatin...

This paper discusses the benefits and drawbacks of caching and replication strategies in the WWW with respect to the Internet infrastructure. Bandwidth consumption, latency, and overall error rates are considered to be most important from a network point of view. The dependencies of these values with input parameters like degree of replication, document popularity, actual cache hit rates, and e...