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arXiv 1004.1677cs.DB
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一种改进的挖掘算法在分布式数据库中的应用

Mining The Data From Distributed Database Using An Improved Mining Algorithm

J. Arokia Renjit, K. L. Shunmuganathan

摘要:

关联规则挖掘是一个活跃的数据采掘研究领域,大多数ARM算法适合于集中式环境。集中式数据采掘在分布式数据库中发现有用的模式并不总是可行的,因为合并来自不同站点的数据集会产生巨大的网络通信成本。本文提出了一种基于良好性能水平的数据采掘改进算法。在本地站点,运行基于改进的LMatrix算法的应用程序,该算法用于计算本地支持数。本地站点还找到一个中心站点来管理交换的每一条消息,以获得所有全球频繁项集。利用LMatrix减少了分区数据库的扫描时间,提高了算法的性能。因此,本研究旨在开发一种分布式算法,用于地理上分布的数据集,该算法比直接在分布式数据库中应用顺序算法降低通信成本,具有更高的运行效率和更强的可扩展性。

英文摘要:

Association rule mining is an active data mining research area and most ARM algorithms cater to a centralized environment. Centralized data mining to discover useful patterns in distributed databases isn't always feasible because merging data sets from different sites incurs huge network communication costs. In this paper, an Improved algorithm based on good performance level for data mining is being proposed. In local sites, it runs the application based on the improved LMatrix algorithm, which is used to calculate local support counts. Local Site also finds a centre site to manage every message exchanged to obtain all globally frequent item sets. It also reduces the time of scan of partition database by using LMatrix which increases the performance of the algorithm. Therefore, the research is to develop a distributed algorithm for geographically distributed data sets that reduces communication costs, superior running efficiency, and stronger scalability than direct application of a sequential algorithm in distributed databases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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