Patent ID: 6345265
Filing Date: 2002-02-05
Classification: G06K,G06N,Y10S

Abstract:
In a decision support system that receives, as an input on a signal-bearing medium, a set of data representing plural individual cases, an apparatus for determining membership of an individual case in a cluster based upon the set of data of plural individual cases, comprising:a processor; a memory having executable instructions stored therein; wherein said processor, in response to instructions stored in memory: constructs a mixture of Bayesian networks (MBN) using said set of data, said MBN comprising plural HSBNs corresponding to a hidden class variable having plural states being in a particular one of said states, each of said states corresponding to a respective cluster of said cases; computes with the MBN the probability of each of said HSBNs generating the data of said individual case; assigns said individual case to the cluster of the HSBN with the highest probability of generating the data of the case.