Proceedings of the 1998 conference on Advances in neural information processing systems II
Stochastic Complexity in Statistical Inquiry Theory
Stochastic Complexity in Statistical Inquiry Theory
Unsupervised Image Clustering Using the Information Bottleneck Method
Proceedings of the 24th DAGM Symposium on Pattern Recognition
Minimum Distortion Color Image Retrieval Based on Lloyd-Clustered Gauss Mixtures
DCC '05 Proceedings of the Data Compression Conference
CIVR'06 Proceedings of the 5th international conference on Image and Video Retrieval
On the efficient evaluation of probabilistic similarity functions for image retrieval
IEEE Transactions on Information Theory
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In this paper we present an improved method for hierarchical clustering of Gaussian mixture components derived from Hierarchical Gaussian Mixture Expectation Maximization (HGMEM) algorithm. As HGMEM performs, it is efficient in reducing a large mixture of Gaussians into a smaller mixture while still preserving the component structure of the original mode. Compared with HGMEM algorithm, it takes covariance into account in Expectation-Step without affecting the Maximization-Step, avoiding excessive expansion of some components, and we simply call it Cov-HGMEM. Image retrieval experiments indicate that our proposed algorithm outperforms previously suggested method.