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Previously, eight popular information-theoretic-based cluster validity indices have been generalized and tested for probabilistic partitions built by the expectation-maximization (EM) algorithm for the Gaussian mixture model. However, the analysis was limited to probabilistic clusters, and there were limited explanations for differences in the performance of the indices. In this paper, we extend the...
An accurate two-dimensional-three-dimensional (2D-3D) image registration method is introduced in this paper, which is used in image-guided surgery to detect and correct patient movement during image-guided intervention treatment. In this paper, we decompose a 3D rigid transformation in the 3D patient coordinate into in-plane transformations and out-of-plane rotations in two orthogonal 2D projections,...
Alternative clustering aims at exploring another reasonable clustering which is distinctively different from an existing one. This paper presents a novel alternative clustering algorithm based on the IB method, named Alt_sIB. Our approach aims to ensure the clustering quality by maximizing the mutual information between clustering labels and data observation, whilst ensuring the clustering distinctiveness...
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