一种基于取回代价的LFU图片缓存算法及在WAP浏览器应用  

Recaption Cost Based LFU Image Application in WAP Cache Algorithm and Browser

作　　者：陈慧光[1] 肖创柏[1] 高允翔[1] 高朝勤[1] 

机构地区：[1]北京工业大学计算机学院,北京100124

出　　处：《中国电子商情（通信市场）》2009年第5期94-99,共6页

摘　　要：分析了WAP图片资源的特点，提出了取回代价的概念，对传统的缓存替换算法进行了改进，提出了一种基于取回代价的LFU图片缓存算法；在应用算法到WAP浏览器时，采取了浏览器退出缓存图片即销毁的策略，保证了缓存内容与服务器同步的同时，改善了浏览器的整体性能．This paper presents the ideal of recaption cost to characterize WAP sources of images and improve the classic cache removal policy. Then It gets a new policy of image caches, LFU based on recaption cost; using the algorithm in the wap browser, It adopts the strategy of destroying cached images when exiting the browser, in this way, it not only guarantees obtaining newest images when starting browser next time, but also improves the overall performance of the browser.

关 键 词：WAP 浏览器 图片缓存 取回代价 

分 类 号：TN929.53[电子电信—通信与信息系统] TP368.5[电子电信—信息与通信工程]