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Named entity recognition of follow-up and time information in 20 000 radiology reports.
Yan Xu
Junichi Tsujii
Eric I-Chao Chang
Published in:
J. Am. Medical Informatics Assoc. (2012)
Keyphrases
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information extraction
named entity recognition
natural language processing
information retrieval
artificial intelligence
computer vision
feature selection
prior knowledge
semi supervised
semantic information
text summarization
relation extraction