A Site-Based Proxy Cache

In traditional proxy caches, any visited page from any Web server iscached independently, ignoring connections between pages. And users stillhave to frequently visit indexing pages just for reaching usefulinformative ones, which causes significant waste of caching space andunnecessary Web traffic. In order to solve the above problem, this paperintroduced a site graph model to describe WWW and a site-basedreplacement strategy has been built based on it. The concept of "accessfrequency" is developed forevaluating whether a Web page is worth being kept in caching space.On the basis of user's access history, auxiliary navigation informationis provided to help him reach target pages more quickly. Performancetest results have shown that the proposed proxy cache system can gethigher hit ratio than traditional ones and can reduce user's access latencyeffectively.