DWCS : a dynamic web cache selection algorithm

The main aim of cache selection algorithms in current proxy servers is to get higher hit-ratio, they usually don't concern the validation and update of outdate pages. In this paper a new cache benefit model is defined, the relevant factors including validation cost and update cost are considere...

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Bibliographic Details
Main Authors: Zhang, Baili, Hu, Xinping, Zhang, Zhizheng, Fang, Ning
Other Authors: School of Physical and Mathematical Sciences
Format: Conference or Workshop Item
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/96741
http://hdl.handle.net/10220/13058
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Institution: Nanyang Technological University
Language: English
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Summary:The main aim of cache selection algorithms in current proxy servers is to get higher hit-ratio, they usually don't concern the validation and update of outdate pages. In this paper a new cache benefit model is defined, the relevant factors including validation cost and update cost are considered to obtain the optimal cache set. According to the cache model, an algorithm - DWCS (Dynamic Web Cache Selection) is presented, and it is proved to be optimal under the reasonable hypothesis. The experimental results show the efficiency of DWCS algorithm.