Keyphrases
- named entity recognition
- information extraction
- named entities
- natural language processing
- maximum entropy
- text summarization
- semi supervised
- hand coded
- annotated corpus
- conditional random fields
- classifier ensemble
- proper names
- machine learning
- sequence labeling
- databases
- relation extraction
- knowledge base
- maximum entropy classifier
- unsupervised learning
- text mining
- knowledge discovery
- object recognition
- reinforcement learning
- artificial intelligence
- learning algorithm
- chinese named entity recognition