Please use this identifier to cite or link to this item: https://doi.org/10.1109/TIFS.2007.916280
Title: Classification and feature extraction by simplexization
Authors: Fu, Y.
Yan, S. 
Huang, T.S.
Keywords: Discriminant simplex analysis (DSA)
Face recognition
K-nearest-neighbor simplex (kNNS)
Lipreading
Nearest feature line classifier
Subspace learning
Issue Date: Mar-2008
Citation: Fu, Y., Yan, S., Huang, T.S. (2008-03). Classification and feature extraction by simplexization. IEEE Transactions on Information Forensics and Security 3 (1) : 91-100. ScholarBank@NUS Repository. https://doi.org/10.1109/TIFS.2007.916280
Abstract: Techniques for classification and feature extraction are often intertwined. In this paper, we contribute to these two aspects via the shared philosophy of simplexizing the sample set. For general classification, we present a new criteria based on the concept of k-nearest-neighbor simplex (kNNS), which is constructed by the k nearest neighbors, to determine the class label of a new datum. For feature extraction, we develop a novel subspace learning algorithm, called discriminant simplex analysis (DSA), in which the intraclass compactness and interclass separability are both measured by kNNS distances. Comprehensive experiments on face recognition and lipreading validate the effectiveness of the DSA as well as the kNNS-based classification approach. © 2008 IEEE.
Source Title: IEEE Transactions on Information Forensics and Security
URI: http://scholarbank.nus.edu.sg/handle/10635/55299
ISSN: 15566013
DOI: 10.1109/TIFS.2007.916280
Appears in Collections:Staff Publications

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