Query Expansion as a Matrix Factorization Problem: Extended Abstract.
Daniel ValcarceJavier ParaparÁlvaro BarreiroPublished in: CERI (2018)
Keyphrases
- extended abstract
- query expansion
- matrix factorization
- collaborative filtering
- information retrieval systems
- recommender systems
- language model
- factorization methods
- retrieval effectiveness
- relevance feedback
- information retrieval
- negative matrix factorization
- relevant documents
- pseudo relevance feedback
- retrieval model
- text retrieval
- missing data
- automatic query expansion
- nonnegative matrix factorization
- implicit feedback
- biomedical information retrieval
- search logs