Unsupervised Learning of Finite Mixture Models
IEEE Transactions on Pattern Analysis and Machine Intelligence
Stochastic Complexity in Statistical Inquiry Theory
Stochastic Complexity in Statistical Inquiry Theory
A Greedy EM Algorithm for Gaussian Mixture Learning
Neural Processing Letters
Efficient greedy learning of Gaussian mixture models
Neural Computation
A cost-function approach to rival penalized competitive learning (RPCL)
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
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Gaussian mixture model (GMM) has been widely used in fields of image processing and investment data mining. However, in many practical applications, the number of the components is not known. This paper proposes a kind of greedy merge EM (GMEM) learning algorithm such that the number of Gaussians can be determined automatically with the minimum message length (MML) criterion. Moreover, the greedy merge learning algorithm is successfully applied to unsupervised data analysis. It is demonstrated well by the experiments that the proposed greedy merge EM (GMEM) learning algorithm can make both parameter learning and decide the number of the Gaussian mixture.