摘要
In traditional proxy caches, any visited page from any Web server is cachedindependently, ignoring connections between pages. And users still have to frequently visit indexingpages just for reaching useful informative ones, which causes significant waste of caching space andunnecessary Web traffic. In order to solve the above problem, this paper introduced a site graphmodel to describe WWW and a site-based replacement strategy has been built based on it. Theconcept of "access frequency" is developed for evaluating whether a Web page is worth beingkept in caching space. On the basis of user's access history, auxiliary navigation information isprovided to help him reach target pages more quickly. Performance test results have shown thatthe proposed proxy cache system can get higher hit ratio than traditional ones and can reduceuser's access latency effectively.
基金
高等学校博士学科点专项科研项目，国家自然科学基金
