Building on Redundancy: Factoid Question Answering, Robust Retrieval and the "Other".
Dmitri RoussinovElena FilatovaMichael ChauJose Antonio Robles-FloresPublished in: TREC (2005)
Keyphrases
- question answering
- passage retrieval
- information retrieval
- sentence retrieval
- natural language processing
- question answering systems
- answer extraction
- information extraction
- question classification
- natural language
- document retrieval
- syntactic information
- named entities
- open domain
- test collection
- retrieval model
- qa clef
- qa systems
- information retrieval systems
- answer validation
- relation extraction
- natural language questions
- open domain question answering
- cross language
- semantic roles
- retrieval systems
- relevance feedback
- answering questions
- image retrieval
- machine learning
- candidate answers
- text retrieval
- query expansion
- language model