With the recent explosion in usage of the world wide web the problem of caching web objects has gained considerable importance Caching on the web di ers from traditional caching in several ways The non homogeneity of the object sizes is probably the most important such di erence In this paper we give an overview of caching policies designed speci cally for web objects and provide a new algorith...

In this paper, we evaluate the performance of the CLIR (Cross-Layer Interception and Redirection) cooperative caching scheme for ad hoc networks. Although this caching scheme was developed for Mobile Ad Hoc Networks (MANET) we study the application of this kind of algorithms in static grid ad hoc networks. By means of simulations, we evaluate the mean traffic generated in the wireless network, ...

With the increasing popularity of the World Wide Web, the amount of information available and the use of Web servers are growing exponentially. As a consequence, the number of requests to popular Web servers increases exponentially as well. In order to reduce the overhead induced by frequent requests to the same documents, server caching, also referred to as main memory caching, has been propos...

Object-based client caching allows clients to keep more frequently accessed objects while discarding colder objects that reside on the same page. However, when these objects are modi ed and sent to the server, it may need to read the corresponding page from disk to install the update. These installation reads are not required with a page-based cache because whole pages are sent to the server. W...

The performance of computer systems is heavily dependent upon the caching systems used. This article investigates the eeect of two well known caching systems , Victim caching and Prefetching. Markov Models for memory systems are presented for the performance analysis of systems using the combination of these two techniques. Simulation results are presented and compared with standard caching met...

This paper discusses signature caching strategies to reduce power consumption for wireless broadcast and filtering services. The two-level signature scheme is used for indexing the information frames. A signature is considered as the basic caching entity in this paper. Four caching policies are compared in terms of tune-in time and access time. With reasonable access time delay, all of the cach...

Western scrub-jays (Aphelocoma californica) live double lives, storing food for the future while raiding the stores of other birds. One tactic scrub-jays employ to protect stores is "re-caching"-relocating caches out of sight of would-be thieves. Recent computational modelling work suggests that re-caching might be mediated not by complex cognition, but by a combination of memory failure and st...

Caching is an important technique for improving performance in distributed systems. However, in general, it has been performed on an ad-hoc basis, with each component of the system having to invent its own caching techniques. In the Spring operating system, we provide a unified caching architecture that can be used to cache a variety of different kinds of remote objects. For any given kind of o...

These days web caching suffers from many problems like scalability, robustness, metadata management etc. These problems degrade the performance of the network and can also create frustrating situations for the clients. This paper discusses several web caching schemes such as Distributed Web Caching (DWC), Distributed Web Caching with Clustering (DWCC), Robust Distributed Web Caching (RDWC), Dis...

Portals are one of the rapidly growing applications on the Web, providing a single interface to access different sources (providers). Providing fast response time is one of the critical issues in such applications. Dissatisfaction of users dramatically increases with increasing response time, resulting in abandonment of Web sites, which in turn could result in loss of revenue by businesses. In ...