A study of caching proxy mechanisms realized on wide area distributed networks

Abstract

The information retrieval systems on a wide area distributed network, such as the World-Wide W e b ( W ) , become popular among the extremely large number of users. The caching proxy has an important role on these systems for improving their accessibility and serviceability.The caching proxy mechanism is discussed in this paper as follows: First, the role and structure of the caching proxy are explained, and two major problems of existing systems are pointed out. Our solution to overcome these problems is proposed next. Changing afile size, by controlling a quality level of cached multimedia data, is proposed as a measure to overcome one problem. As a solution to the other problem, making a cluster among neighboring caching proxies, using hyperlink information, is proposed. Finally, an improved caching proxy mechanism based upon these ideas is shown.

Web Caching and its Applications

“…Oguchi and Ono [420,419] study proxy cache mechanisms for wide area distributed networks and also give some proposals concerning them. They mention that some files such as multimedia files may not get cached because they may exceed size limits set for caching files.…”