如何提高副本定位服务的可扩展性和自适应性，是大规模数据网格系统面临的重要难题。

It's a challenging problem to improve the scalability, adaptability and performance of replica location service in large-scale data grids.

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本文将P 2 P资源定位技术应用到数据网格的副本定位服务中，提出基于对等模式的自适应副本定位方法—PSRL。

This thesis applies peer-to-peer resource location techniques to data grids and proposes PSRL, a peer-to-peer based self-adaptive replica location approach.

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