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- W2152865771 abstract "In this paper, we propose a simple but powerful method to visualize connection weights by SOM. The conventional SOM has been well established and extensively used to visualize complex data. There have been a number of methods to visualize final connection weights. However, even sophisticated visualization techniques may be ineffective in dealing with ambiguous connection weights due to the complexity of the data set. To cope with this problem, we retrain a network with connection weights obtained by SOM. At this time, we do not optimize networks in terms of errors but we train networks to enhance the characteristics of connection weights at the price of optimality. This enhancement can be realized by smaller Gaussian width. Though these smaller Gaussian widths are not optimal ones in terms of errors, it may give some insights into the characteristics of connection weights. We applied the method to the famous Iris problem and a classification problem for OECD countries. In both problems, we can obtain U-matrices with more explicit boundaries for easy interpretation." @default.
- W2152865771 created "2016-06-24" @default.
- W2152865771 creator A5079603834 @default.
- W2152865771 date "2009-01-01" @default.
- W2152865771 modified "2023-09-25" @default.
- W2152865771 title "Enhanced Visualization by Combing SOM and Mixture Models" @default.
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- W2152865771 doi "https://doi.org/10.1007/978-3-642-03040-6_33" @default.
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