燕山大学学报Issue(2)：139-144,151,7.DOI:10.3969/j.issn.1007-791X.2015.02.007
一种新的基于推荐的流媒体代理缓存替换机制
A new proxy cache replacement mechanism of multimedia streams based on recommendation
摘要
Abstract
Streaming media proxy cache is the key technology of reducing load of streaming media server and transmission network. Recommendation algorithm is based on the historical access behavior of users to predict which media data would be probably re⁃quested in the further.The traditional cache replacement mechanisms have not concluded user′s recommendation influences.Firstly, CFCD (Collaborative Filtering Recommendation Algorithm Combined with Dissimilarity) algorithm is proposed.Secondly,Recom⁃mended Degree of a media file is defined based on the analysis of the CFCD recommendation result.And then CRA_CFCD(Cache Replacement Algorithm Based on CFCD) is proposed.Finally,Extensive simulations show that the CFCD algorithm can enhance the accuracy of the recommendations,CRA_CFCD is more effective in cache hit ratio and start⁃up latency.关键词
代理缓存/缓存替换算法/协同过滤推荐算法/相异度/推荐度Key words
proxy cache/cache replacement algorithm/collaborative filtering recommendation/dissimilarity/recommended degree分类
信息技术与安全科学引用本文复制引用
胡玉琦,李晓娜..一种新的基于推荐的流媒体代理缓存替换机制[J].燕山大学学报,2015,(2):139-144,151,7.基金项目
教育部科技发展中心专项研究课题基金资助项目 （）
