A Question Answering System Supported by Information Extraction.
Rohini K. SrihariWei LiPublished in: ANLP (2000)
Keyphrases
- information extraction
- question answering
- open domain
- natural language
- natural language processing
- named entity recognition
- text mining
- free text
- semi structured
- structured data
- question classification
- precision and recall
- machine learning
- ontology based information extraction
- question answering systems
- relational learning
- web mining
- text processing
- named entities
- web documents
- conditional random fields
- information retrieval
- text documents
- machine translation
- word sense disambiguation
- expert systems
- relation extraction
- data mining
- knowledge base
- case study
- text summarization
- probabilistic model
- semi supervised
- co occurrence