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CLUSTERING CALCULATION DEVICE, CLUSTERING CALCULATION METHOD, CLUSTERING CALCULATION PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM RECORDED WITH THE PROGRAM
CLUSTERING CALCULATION DEVICE, CLUSTERING CALCULATION METHOD, CLUSTERING CALCULATION PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM RECORDED WITH THE PROGRAM
PROBLEM TO BE SOLVED: To provide clustering technology for accurately estimating the number of speakers and a parameter for characterizing each speaker, in dialization.;SOLUTION: A clustering calculation device 3 includes: an observation amount creation section 26 which reads a power vector extracted from recorded conversation data, to convert it to an observation amount of the vector corresponding to dynamic Hierarchical Dirichlet Process (dHDP) approximation model; a storage means 10 for accumulating and storing a collection data of the converted observation amount; a variation post-distribution inference section 30 in which a value of post-distribution of a plurality of parameters when the plurality of clusters are created from the collection data of the observation amount by dHDP approximation model, is respectively estimated by an expectation-maximization (EM) algorithm, and sequentially stored and updated in the storage means 10; and an output control section 28 for outputting a latest estimation value of the post-distribution of the plurality of parameters, which are stored in the storage means 10, when a finishing condition set beforehand is satisfied.;COPYRIGHT: (C)2010,JPO&INPIT
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