Reducing Question Answering Input Data Using Named Entity Recognition.
Elisa NogueraAntonio ToralFernando LlopisRafael MuñozPublished in: TSD (2005)
Keyphrases
- question answering
- named entity recognition
- named entities
- natural language processing
- information extraction
- text summarization
- relation extraction
- natural language
- data sets
- information retrieval
- qa clef
- semi supervised
- text documents
- linguistic features
- cross language
- conditional random fields
- question answering systems
- maximum entropy
- text mining
- noun phrases
- natural language questions
- word sense disambiguation
- wordnet
- unsupervised learning
- qa systems
- hidden markov models
- machine learning