MODEL LEARNING DEVICE, MODEL GENERATION METHOD, AND COMPUTER PROGRAM PRODUCT
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Aug 15, 2013
filing date -
Sep 6, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
According to an embodiment, a model learning device learns a model having a full covariance matrix shared among a plurality of Gaussian distributions. The device includes a first calculator to calculate, from training data, frequencies of occurrence and sufficient statistics of the Gaussian distributions contained in the model; and a second calculator to select, on the basis of the frequencies of occurrence and the sufficient statistics, a sharing structure in which a covariance matrix is shared among Gaussian distributions, and calculate the full covariance matrix shared in the selected sharing structure.
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