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Feature weighting, which is considered as an extension of feature selection techniques, has been successfully applied to improve the performance of clustering. Focusing on the clustering based on a similarity matrix, we design an optimization model to minimize the fuzziness of similarity matrix by learning feature weights. The objective of this model is to get a more reasonable result of clustering...
For the virtues such as simplicity, high generalization capability, and few training cost, the K-Nearest-Neighbor (KNN) classifier is widely used in pattern recognition and machine learning. However, the computation complexity of KNN classifier will become higher when dealing with large data sets classification problem. In consequence, its efficiency will be decreased greatly. This paper proposes...
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