Approximate Grammar for Information Extraction
V. SriramB. Ravi Sekar ReddyRajeev SangalPublished in: CoRR (2003)
Keyphrases
- information extraction
- natural language
- precision and recall
- open domain
- natural language processing
- question answering
- information retrieval
- semi structured
- machine learning
- named entity recognition
- conditional random fields
- ontology based information extraction
- free text
- text mining
- structured data
- relation extraction
- text processing
- grammatical inference
- broad coverage
- text documents
- inductive inference
- relational learning
- neural network
- phrase structure
- natural language parsing
- semantic tagging
- data sets