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Correction to 'On the existence of positive-definite maximum-likelihood estimates of structured covariance matrices'.
Daniel R. Fuhrmann
Published in:
IEEE Trans. Inf. Theory (1997)
Keyphrases
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positive definite
covariance matrix
covariance matrices
maximum likelihood
sample size
principal component analysis
objective function
parameter estimation
closed form
machine learning
active learning
multi class
expectation maximization
em algorithm