Keyphrases
- named entities
- named entity recognition
- information extraction
- conditional random fields
- named entity extraction
- natural language processing
- relation extraction
- co occurrence
- question answering
- text mining
- graphical models
- contextual features
- pairwise
- unsupervised learning
- global context
- proper names
- annotated corpus
- markov random field
- maximum entropy
- weakly supervised
- machine learning
- linguistic features
- noun phrases
- higher order
- maximum entropy model
- person names
- semi supervised
- information retrieval
- probabilistic model
- data mining
- generative model