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Unsupervised sentence representations as word information series: Revisiting TF-IDF.
Ignacio Arroyo-Fernández
Carlos-Francisco Méndez-Cruz
Gerardo Sierra
Juan-Manuel Torres-Moreno
Grigori Sidorov
Published in:
Comput. Speech Lang. (2019)
Keyphrases
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tf idf
term frequency
term weighting
unsupervised learning
text categorization
contextual information
search engine
feature selection
domain knowledge
knowledge discovery
information extraction
image classification