Keyphrases
- named entities
- web search
- named entity recognition
- information extraction
- natural language processing
- co occurrence
- text mining
- named entity extraction
- web search engines
- question answering
- relation extraction
- chinese named entity recognition
- search engine
- text documents
- person names
- entity search
- search queries
- search result
- web pages
- global context
- machine learning
- personal names
- news corpus
- web queries
- annotated corpus
- unsupervised learning
- information retrieval
- learning algorithm
- text corpus
- automatic extraction
- knowledge base
- reinforcement learning
- feature space