Solving the Sparsity Problem in Recommender Systems Using Association Retrieval.
Yibo ChenChanle WuMing XieXiaojun GuoPublished in: J. Comput. (2011)
Keyphrases
- recommender systems
- data sparsity
- image database
- collaborative filtering
- information retrieval
- retrieval accuracy
- user profiling
- retrieval model
- high dimensional
- text retrieval
- document retrieval
- sparse representation
- user preferences
- information retrieval systems
- combinatorial optimization
- matrix factorization
- relevance feedback
- retrieval systems
- information filtering
- query expansion
- cold start problem
- trust aware