WI-ENRE in CLEF eHealth Evaluation Lab 2015: Clinical Named Entity Recognition Based on CRF.
Jingchi JiangYi GuanChao ZhaoPublished in: CLEF (Working Notes) (2015)
Keyphrases
- named entity recognition
- conditional random fields
- information extraction
- named entities
- natural language processing
- maximum entropy
- question answering
- sequence labeling
- semi supervised
- relation extraction
- text summarization
- information retrieval
- named entity recognizer
- annotated corpus
- classifier ensemble
- higher order
- query expansion
- crf model
- markov random field
- co occurrence
- maximum entropy classifier
- databases
- hidden markov models
- web intelligence
- graphical models
- cross lingual
- pairwise
- image processing
- proper names
- generative model
- unsupervised learning