Clustering and Feature Selection using Sparse Principal Component Analysis

Details Clustering and Feature Selection using Sparse Principal Component Analysis Clustering and Feature Selection using Sparse Principal Component Analysis

2007-07-04

arxiv.org/abs/0707.0701v2

Computer Science

Artificial Intelligence

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In this paper, we study the application of sparse principal component analysis (PCA) to clustering and feature selection problems. Sparse PCA seeks sparse factors, or linear combinations of the data variables, explaining a maximum amount of variance in the data while having only a limited number of nonzero coefficients. PCA is often used as a simple clustering technique and sparse factors allow us here to interpret the clusters in terms of a reduced set of variables. We begin with a brief introduction and motivation on sparse PCA and detail our implementation of the algorithm in d'Aspremont et al. (2005). We then apply these results to some classic clustering and feature selection problems arising in biology.

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