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An efficient approach to scale up k-medoid based algorithms in large databases

Maria Camila N. BarioniHumberto L. RazenteAgma J. M. TrainaCaetano Traina Jr.

Scalable data mining algorithms have become crucial to efficiently support KDD processes on large databases. In this paper, we address the task of scaling up k-medoids based algorithms through the utilization of metric access methods, allowing clustering algorithms to be executed by database management systems in a fraction of the time usually required by the traditional approaches. Experimental results based on several datasets, including synthetic and real data, show that the proposed algorithm may reduce the number of distance calculations by a factor of more than a thousand times when compared to existing algorithms while producing clusters of comparable quality.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbbd/2006/018.pdf

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