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Simultaneously modeling semantics and structure of threaded discussions: a sparse coding approach and its applications.
Chen Lin
Jiang-Ming Yang
Rui Cai
Xin-Jing Wang
Wei Wang
Lei Zhang
Published in:
SIGIR (2009)
Keyphrases
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sparse coding
dictionary learning
sparse representation
natural images
image classification
generative model
unsupervised learning
image representation
linear combination
image patches
computer vision
object recognition
threaded discussions
feature space
multiscale
face recognition
image processing