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A flexible method of creating HMM using block-diagonalization of covariance matrices.
Ryosuke Koshiba
Mitsuyoshi Tachimori
Hiroshi Kanazawa
Published in:
ICSLP (1998)
Keyphrases
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covariance matrices
covariance matrix
hidden markov models
pairwise
feature selection
similarity measure
objective function
lower bound
maximum likelihood
em algorithm
training samples
closed form