Keyphrases
- named entity recognizer
- relation extraction
- named entities
- information extraction
- named entity recognition
- automatic extraction
- coreference resolution
- domain specific
- natural language processing
- reference resolution
- precision and recall
- question answering
- high precision
- semantic relations
- information retrieval
- text mining
- co occurrence
- database
- conditional random fields
- text classification
- text summarization
- website