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Semi-supervised construction of general visualization hierarchies
(CSREA Press, 2002)
We have recently developed a principled approach to interactive non-linear hierarchical visualization [8] based on the Generative Topographic Mapping (GTM). Hierarchical plots are needed when a single visualization plot ...
Visualization of incomplete data using class information constraints
(Springer Nature, 2002)
We analyse how the training algorithm for the Generative Topographic Mapping (GTM) can be modifed to use class information to improve results on incomplete data. The approach is based on an Expectation-Maximisation (EM) ...