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.

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。

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Data hoarding technology means the technology of prefetching data which may access by user after disconnection later to cache.

数据收集技术是指在断接前把用户将来可能访问的数据预先存储到本地缓存的一种技术。

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Data Hoarding is a key issue in mobile database. It will support the autonomy operation of mobile hosts when they are disconnected from servers by prefetching important data into local cache.

数据收集是移动数据库中的一个关键问题，将数据收集到移动客户机的缓存中，使客户机在断接期间使用本地数据自主操作，提高了数据的可用性。

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