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Conversation clustering based on PLCA using within-cluster sparsity constraints.
Yohei Kawaguchi
Masahito Togami
Published in:
EUSIPCO (2012)
Keyphrases
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sparsity constraints
clustering algorithm
sparse representation
data clustering
sparse coding
nonnegative matrix factorization
dictionary learning
negative matrix factorization
cluster analysis
low rank
image processing
pattern recognition
natural language
text classification