A retrieval model for question in community question answering system.
Yueping SunXiaojie WangSong LiuCaixia YuanXuwen WangPublished in: CCIS (2012)
Keyphrases
- retrieval model
- question answering systems
- document retrieval
- question classification
- language model
- information retrieval systems
- test collection
- language modeling
- retrieval effectiveness
- information retrieval
- vector space model
- question answering
- query expansion
- relevance feedback
- passage retrieval
- text retrieval
- vector space
- answer extraction
- retrieval framework
- retrieval systems
- sentence retrieval
- answer validation
- tf idf
- user queries
- natural language
- statistical language models
- databases
- query terms
- effective retrieval
- retrieval functions
- relevant documents
- n gram
- document collections
- co occurrence
- term dependencies
- natural language processing
- data analysis
- pattern recognition
- decision trees
- community question answering
- data sets
- named entity recognizer