An efficient MDS-based topographic mapping algorithm
Neurocomputing
Self organization of a massive document collection
IEEE Transactions on Neural Networks
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In order to solve multidimensional scaling (MDS) efficiently, we proposed an algorithm, which apply stochastic gradient algorithm to minimizing well-known MDS criteria [1]. In this paper, the efficient MDS algorithm is applied to the text mining and compared with the SOM [2]. The results verified the validity of our algorithm in the analysis of a massive document collection. Our algorithm could find out some interesting structures from about 100000 articles in Usenet (NetNews).