Improving Chemical Named Entity Recognition in Patents with Contextualized Word Embeddings.
Zenan ZhaiDat Quoc NguyenSaber A. AkhondiCamilo ThorneChristian DruckenbrodtTrevor CohnMichelle GregoryKarin VerspoorPublished in: CoRR (2019)
Keyphrases
- named entity recognition
- information extraction
- named entities
- natural language processing
- text summarization
- semi supervised
- maximum entropy
- conditional random fields
- maximum entropy classifier
- information retrieval
- relation extraction
- sequence labeling
- co occurrence
- named entity recognizer
- annotated corpus
- classifier ensemble
- word sense disambiguation
- n gram
- proper names
- noun phrases
- text mining
- pos taggers
- data mining
- artificial intelligence
- chinese named entity recognition