Combining Structured and Unstructured Knowledge Sources for Question Answering in Watson.
Ken BarkerPublished in: DILS (2012)
Keyphrases
- question answering
- knowledge sources
- structured data
- multiple knowledge sources
- information extraction
- knowledge based systems
- domain specific
- knowledge acquisition
- cultural algorithms
- cross language
- natural language processing
- qa clef
- information retrieval
- semantic relations
- semi structured
- knowledge base
- domain knowledge
- natural language
- natural language questions
- named entities
- question classification
- passage retrieval
- expert systems
- syntactic information
- answer validation
- question answering systems
- semantic roles
- data sets
- qa systems
- information sources
- relation extraction
- data sources
- text mining
- answer extraction
- semantic information
- learning algorithm
- query expansion