Research of Knowledge Acquisition and System Development by Data Mining

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We conducted research on knowledge acquisition and system development and got the following results :1. Knowledge acquisition and system development under steady state environments(1) We have developed a clustering method using support vector machines (SVMs) by dividing the image data in segments and feature selection method using SVM ensembles.(2) We have developed an incremental training method that keeps only support vector candidates and demonstrated that the generalization ability was maintained while deleting training data.2. Knowledge acquisition by data mining and system development under dynamic environments(1) Dynamic feature space learning : we have developed incremental learning algorithms of Principal Component Analysis (PCA) and Kernel PCA (KPCA), and demonstrated that the feature selection was successfully carried out by adapting to the variation of data distributions.(2) System development : We proposed a method to integrate the developed dynamic feature selection algor … More ithm into a classifier model, in which the k-nearest neighbor method was combined with a dynamic clustering algorithm, and a neural network model. We demonstrated that the proposed method enabled the classifier to conduct stable incremental learning, and that the developed system had excellent performance for not only bench-mark datasets but also facial recognition datasets. Although we tried to develop an incremental SVM system, it has not been completed yet. This is reserved as our future work.3. Development of image segmentation system by data mining(1)Development of clustering method for image segmentation : we have developed a basic system to detect and classify the uncertain object imagery and demonstrated that the detection and classification of crystal imagery was properly carried out using image database of protein crystallizations.(2) Development of feature extraction method for image segmentation : we have developed a feature extraction method based on the multiresolution spectral histograms by wavelet transformation and demonstrated that the proposed feature is available for the image retrieval. Less