External Knowledge Sources for Question Answering.
Boris KatzGregory MartonGary C. BorchardtAlexis BrownellSue FelshinDaniel LoretoJesse Louis-RosenbergBen LuFederico MoraStephan StillerÖzlem UzunerAngela WilcoxPublished in: TREC (2005)
Keyphrases
- question answering
- external knowledge
- knowledge sources
- domain knowledge
- wordnet
- natural language processing
- information retrieval
- information extraction
- text categorization
- document clustering
- natural language
- information sources
- named entities
- data sources
- databases
- bag of words
- knowledge structures
- semantic features
- text mining
- domain specific
- knowledge base