The Impact of Named Entity Normalization on Information Retrieval for Question Answering.
Mahboob Alam KhalidValentin JijkounMaarten de RijkePublished in: ECIR (2008)
Keyphrases
- question answering
- named entities
- information retrieval
- information extraction
- named entity recognition
- relation extraction
- passage retrieval
- natural language processing
- natural language
- text documents
- qa systems
- linguistic features
- text mining
- expert systems
- document collections
- cross language
- question answering systems
- document retrieval
- information access
- vector space model
- noun phrases
- query expansion
- artificial intelligence