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Approximate Gaussian Mixtures for Large Scale Vocabularies.
Yannis Avrithis
Yannis Kalantidis
Published in:
ECCV (3) (2012)
Keyphrases
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gaussian mixture
em algorithm
covariance matrix
gaussian mixture model
probability density function
expectation maximization
density estimation
covariance matrices
closed form
kl divergence
mixture model
information retrieval
prior knowledge
text classification
generative model
unsupervised learning