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An new algorithm called automatic spectral clustering (ASC) is proposed based on eigengap and orthogonal eigenvector in this paper. It mainly focuses on how to automatically determine the suitable class number in clustering and explores some intrinsic characteristics of the spectral clustering method. The proposed method firstly constructs the affinity matrix of data and carries on eigen-decomposition,...
This paper presents a MSV-based clustering method for face detection in color images. The method relies on the assumption that faces are well separated from the background by skin color detection. These faces can be located automatically by the minimum scatter volume (MSV) clustering method. The proposed method adopting gradient descent and iteration to search for the optimum solution of cost function...
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