Enhanced Proxy Caching with Content Management |
| |
Authors: | Kai Cheng Yahiko Kambayashi |
| |
Affiliation: | (1) Department of Social Informatics, Graduate School of Informatics, Kyoto University, Kyoto, Japan, JP |
| |
Abstract: | In this paper, we propose a novel approach to enhancing web proxy caching, an approach that integrates content management
with performance tuning techniques. We first develop a hierarchical model for management of web data, which consists of physical
pages, logical pages and topics corresponding to different abstraction levels. Content management based on this model enables
active utilization of the cached web contents. By defining priority on each abstraction level, the cache manager can make
replacement decisions on topics, logical pages, and physical pages hierarchically. As a result, a cache can always keep the
most relevant, popular, and high-quality content. To verify the proposed approach, we have designed a content-aware replacement
algorithm, LRU-SP+. We evaluate the algorithm through preliminary experiments. The results show that content management can
achieve 30% improvement of caching performance in terms of hit ratios and profit ratios (considering significance of topics)
compared to content-blind schemes.
Received 19 March 2001 / Revised 17 April 2001 / Accepted in revised form 25 May 2001 |
| |
Keywords: | : Content management Information retrieval Performance Proxy caching Web database |
本文献已被 SpringerLink 等数据库收录! |
|