Candid Covariance-Free Incremental Principal Component Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
2005 Special issue: Incremental learning of feature space and classifier for face recognition
Neural Networks - 2005 Special issue: IJCNN 2005
Incremental linear discriminant analysis for classification of data streams
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Algorithms for accelerated convergence of adaptive PCA
IEEE Transactions on Neural Networks
Incremental Learning of Chunk Data for Online Pattern Classification Systems
IEEE Transactions on Neural Networks
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We have proposed an online feature extraction method called Chunk Incremental Principal Component Analysis (Chunk IPCA) where a chunk of data is trained at a time to update an eigenspace model. In this paper, we propose an extended version of Chunk IPCA in which a proper threshold for the accumulation ratio is adaptively determined such that the highest classification accuracy is maintained for a validation data set. Whenever a new chunk of training data is given, the validation set is updated in an online fashion by using the k-means clustering or through the prototype selection based on the classification results. The experimental results show that the extended version of Chunk IPCA can determine a proper threshold on an ongoing basis, resulting in keeping higher classification accuracy than the original Chunk IPCA.