Document retrieval for question answering: a quantitative evaluation of text preprocessing.
Gracinda CarvalhoDavid Martins de MatosVítor RocioPublished in: PIKM (2007)
Keyphrases
- quantitative evaluation
- document retrieval
- question answering
- passage retrieval
- information retrieval
- text retrieval
- question answering systems
- cross language
- ground truth
- syntactic information
- document collections
- text summarization
- language model
- retrieval model
- information extraction
- text mining
- relevance feedback
- relevant documents
- quality assessment
- free text
- sentence retrieval
- named entities
- natural language processing
- semantic information
- test collection
- information retrieval systems
- natural language
- text documents
- language modeling
- information access
- keywords
- feature extraction