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Research Hotspot Prediction and Regular Evolutionary Pattern Identification Based on NSFC Grants Using NMF and Semantic Retrieval.
Jinli Wang
Yong Fan
Libo Feng
Zhiwen Ye
Hui Zhang
Published in:
IEEE Access (2019)
Keyphrases
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semantic retrieval
negative matrix factorization
nonnegative matrix factorization
image retrieval
computer vision
image annotation
image segmentation
feature extraction
high dimensional
low level