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《Computer Engineering and Design》 2010-01
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Web cache replacement algorithm based on prediction

HAN Xiang-chun,TIAN Yu-gen(College of Information and Engineering,Yanshan University,Qinhuangdao 066004,China)  
To improve the performance of web cache,a new cache replacement algorithm named PGDSF is proposed,which is based on the GDSF algorithm and joined the prediction mechanism.Firstly,the web log is used to construct prediction model,then prediction model is forcasted and current user access sequence to predict the target set of the prediction is formed.When the cache had not enough space to accommodate new requests,to replace the key which is the smallest key of GDSF and does not belong to the target set of pre-diction.The PGDSF algorithm takes into account factors of the target of web.The simulation shows that the current algorithm have higher percentage of hit rate and byte hit rate than the GDSF replacement algorithm in the certain cache space.
【CateGory Index】: TP393.02
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 LIN Yong wang,\ ZHANG Da jiang,\ QIAN Hua lin(Computer Network Information Center, The Chinese Academy of Sciences, Beijing 100080, China);A Novel Replacement Algorithm for Web Caching[J];Journal of Software;2001-11
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【Co-citations】
Chinese Journal Full-text Database 5 Hits
1 ZENG Bo1,2,LIU Si-feng2(1.Strategical Planning College,Chongqing Technology and Business University,Chongqing 400067;2.School of Economics and Management,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China);Small Sample Prediction Model based on Grey Incidence Degree[J];Statistics & Information Forum;2009-12
2 YANG Jing1,2,LI Run-zhi1,2,WANG Zong-min1,2(1.School of Information Engineering,Zhengzhou University,Zhengzhou 450052,China;2.Henan Provincial Key Lab on Information Network,Zhengzhou 450052,China);P2P streaming media broadcast system caching algorithm based on time-interval[J];Computer Engineering and Design;2010-01
3 NIU Jun-qing,ZHENG Hao-ran,LI Heng,WANG Xu-fa (Department of Computer Science and Technology, University of Science and Technology of China,Hefei 230027,China);Limited History Based Multi-LRU Web Cache Replacement Algorithm[J];Journal of Chinese Computer Systems;2008-06
4 TONG Han WU Qing-bo YANG Sha-zhou;The Discussion of a Dynamic Web Acceleration Technology Mechanisms[J];Microcomputer Information;2009-27
5 ZENG Bo,LIU Si-feng,FANG Zhi-geng,XIE Nai-ming(School of Economics and Management,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China);Grey Combined Forecast Models and Its Application[J];Chinese Journal of Management Science;2009-05
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 HE Chen 1, CHEN Zhao Xiong 2, HUANG He yan 2 1 (Nanjing University of Science & Technology, Nanjing 210094,China) 2 (Research Center of Computer & Language Information Engineering, Chinese Academy of Sciences, Beijing 100083, China);Summary of Web Caching Technology[J];Mini-micro Systems;2004-05
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