Sparse representation of High Dimensional Data for Classification (Paperback) (ISBN-13: 9783639132991)

In this book you will find the use of sparse Principal Component Analysis (PCA) for representing high dimensional data for classification. Sparse transformation reduces the data volume/dimensionality without loss of critical information, so that it can be processed efficiently and assimilated by a human. We obtained sparse representation of high dimensional dataset using Sparse Principal Component Analysis (SPCA) and Direct formulation of Sparse Principal Component Analysis (DSPCA). Later we performed classification using k Nearest Neighbor (kNN) Method and compared its result with regular PCA. The experiments were performed on hyperspectral data and various datasets obtained from University of California, Irvine (UCI) machine learning dataset repository. The results suggest that sparse data representation is desirable because sparse representation enhances interpretation. It also improves classification performance with certain number of features and in most of the cases classification performance is similar to regular PCA.

Author: Salman Siddiqui
ISBN-10: 3639132998
ISBN-13: 9783639132991
Publisher: VDM Verlag
Language: English
Published: 03/05/2009
Pages: 64
Format: Paperback
Weight: 0.23lbs
Size: 9.00h x 6.00w x 0.15d