在位置相关查询(LDQ)中由于用户的移动性和数据的位置相关性，给缓存替换策略带来了新的挑战。
Because of the user's mobility and the location dependency of data, new challenge has been brought to cache replacement strategy for location Dependent Query (LDQ).
通过实验对比，PLAC比其他位置相关缓存替换策略更为有效地提高了缓存命中率，缩短了查询平均响应时间。
The contrast experiments show that the PLAC increases cache hit rate and shortens query average response time more effectively than other location dependent cache replacement strategies.
对于系统的缓存管理和替换策略，SQUID提供了其经典的实现方式。
As for the caching management and replacement policies, SQUID can provide classic realization model.
描述该框架的组成结构与工作原理，对缓存设计时需要解决的透明性、一致性、替换算法和预取策略等主要问题进行讨论并给出性能测试和分析。
It describes in structure and principle of ABWC and discusses transparency, consistency, replacement algorithm, prefetching policy and other main problems which need to be solved in cache designing.
设计使用基于查询相关查询的缓存代替传统缓存，对于缓存的结构、查询匹配、一致性维护策略及替换策略均作了详细设计。
Using correlative query cache to replace tradition cache, the article designs and implements the cache structure, query matching, strategy of consistency and strategy of replacement.
设计使用基于查询相关查询的缓存代替传统缓存，对于缓存的结构、查询匹配、一致性维护策略及替换策略均作了详细设计。
Using correlative query cache to replace tradition cache, the article designs and implements the cache structure, query matching, strategy of consistency and strategy of replacement.
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