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An improvement of the NEC criterion for assessing the number of clusters in a mixture model. (English) Zbl 0933.68117

Summary: The entropy criterion NEC showed good performances for choosing the number of clusters arising from a mixture model. But it was not valid to decide between one and more than one clusters. This note presents a natural extension of this criterion to deal with this situation. Illustrative experiments exhibit good behavior of this modified entropy criterion.

MSC:

68T10 Pattern recognition, speech recognition
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