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Virtual Reality Visual Data Mining via Neural Networks obtained from Multi-objective Evolutionary Optimization: Application to Geophysical Prospecting

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2 Author(s)
Valdes, J.J. ; Nat. Res. Council Canada, Ottawa ; Barton, A.J.

A method for the construction of virtual reality spaces for visual data mining using multi-objective optimization with genetic algorithms on non-linear discriminant (NDA) neural networks is presented. Two neural network layers (output and last hidden) are used for the construction of simultaneous solutions for: a supervised classification of data patterns and an unsupervised similarity structure preservation between the original data matrix and its image in the new space. A set of spaces are constructed from selected solutions along the Pareto front. This strategy represents a conceptual improvement over spaces computed by single-objective optimization. In addition, genetic programming (in particular gene expression programming) is used for finding analytic representations of the complex mappings generating the spaces (a composition of NDA and orthogonal principal components). The presented approach is domain independent and is illustrated via application to the geophysical prospecting of caves.

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Neural Networks, 2006. IJCNN '06. International Joint Conference on

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