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This work presents a study of cache replacement strategies designed for static web content. Proxy servers can improve performance by caching static web content such as cascading style sheets, java script source files, and large files such as images. This topic is particularly important in wireless ad hoc networks, in which mobile devices act as proxy servers for a group of other mobile devices. Opening chapters present an introduction to web requests and the characteristics of web objects, web proxy servers and Squid, and artificial neural networks. This is followed by a comprehensive review of cache replacement strategies simulated against different performance metrics. The work then describes a novel approach to web proxy cache replacement that uses neural networks for decision making, evaluates its performance and decision structures, and examines its implementation in a real environment, namely, in the Squid proxy server.

Multimedia communications. --- Web proxy servers --- Distributed shared memory --- Cache memory --- Engineering & Applied Sciences --- Computer Science --- Web servers. --- Cache memory. --- Web proxy servers. --- Proxy servers. --- Application-level gateways --- Gateways, Application-level --- Proxies (Proxy servers) --- Servers, Proxy --- HTTP proxy servers --- Proxies, Web (Servers) --- Proxies (Web proxy servers) --- Servers, HTTP proxy --- Servers, Web proxy --- Web proxies (Servers) --- Cache (Computers) --- Cache storage --- Servers, Web --- Webservers --- World Wide Web servers --- WWW servers --- Computer science. --- Computer communication systems. --- Computer system failures. --- Computer simulation. --- Computer Science. --- Simulation and Modeling. --- Computer Communication Networks. --- System Performance and Evaluation. --- Client/server computing --- Proxy servers --- Web servers --- Computer storage devices --- Cookies (Computer science) --- Web hosting --- Equipment and supplies --- Computer system performance. --- Computer modeling --- Computer models --- Modeling, Computer --- Models, Computer --- Simulation, Computer --- Electromechanical analogies --- Mathematical models --- Simulation methods --- Model-integrated computing --- Computer failures --- Computer malfunctions --- Computer systems --- Failure of computer systems --- System failures (Engineering) --- Fault-tolerant computing --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Electronic data processing --- Network computers --- Failures --- Distributed processing