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Improvement of Non-Linear Mapping Computation for Dimensionality Reduction in Data Visualization and Classification
Kitakyushu, Japan December 05-December 08
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICHIS.2004.60Fourth International Conference on Hy ...
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Kuncup Iswandy, University of Kaiserslautern, Germany
Andreas K?nig, University of Kaiserslautern, Germany
The projection of high-dimensional data by linear or non-linear techniques is a well established technique in pattern recognition and other scientific and industrial application fields. Commonly, methods affiliated to multidimensional-scaling, projection pursuit or Sammons non-linear distance preserving mapping are applied, based on gradient descent techniques. These suffer from well known dependence on initial or starting value and their limited ability to reach only local minimum. In this paper, stochastic search techniques are applied to the NLM to achieve lower residual stress or error value in competitive time. Encouraging results have been obtained for a particular developed local algorithm both with regard to convergence time and residual error.
Index Terms:
dimensionality reduction, non-linear mapping, gradient descent optimization, stochastic optimization
Citation:
Kuncup Iswandy, Andreas K?nig, "Improvement of Non-Linear Mapping Computation for Dimensionality Reduction in Data Visualization and Classification," his, pp.260-265, Fourth International Conference on Hybrid Intelligent Systems (HIS'04), 2004
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