Simultaneous Dempster-Shafer clustering and gradual determination of number of clusters using a neural network structure

Details Simultaneous Dempster-Shafer clustering and gradual determination of number of clusters using a neural network structure Simultaneous Dempster-Shafer clustering and gradual determination of number of clusters using a neural network structure

2003-05-16

arxiv.org/abs/cs/0305025v1

in Proceedings of the 1999 Information, Decision and Control Conference (IDC'99), pp. 401-406, Adelaide, Australia, 8-10 Febru

Computer Science

Artificial Intelligence

6 pages, 10 figures

Scientific paper

In this paper we extend an earlier result within Dempster-Shafer theory ["Fast Dempster-Shafer Clustering Using a Neural Network Structure," in Proc. Seventh Int. Conf. Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU'98)] where several pieces of evidence were clustered into a fixed number of clusters using a neural structure. This was done by minimizing a metaconflict function. We now develop a method for simultaneous clustering and determination of number of clusters during iteration in the neural structure. We let the output signals of neurons represent the degree to which a pieces of evidence belong to a corresponding cluster. From these we derive a probability distribution regarding the number of clusters, which gradually during the iteration is transformed into a determination of number of clusters. This gradual determination is fed back into the neural structure at each iteration to influence the clustering process.

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