Keyphrases
- named entity recognition
- conditional random fields
- information extraction
- maximum entropy
- sequence labeling
- named entities
- natural language processing
- text summarization
- probabilistic model
- graphical models
- annotated corpus
- higher order
- hand coded
- hidden markov models
- crf model
- classifier ensemble
- relation extraction
- pairwise
- markov random field
- segmentation method
- generative model
- semi supervised
- structured prediction
- data sets
- proper names
- prior knowledge
- chinese named entity recognition