Improving Collaborative Filtering's Rating Prediction Coverage in Sparse Datasets through the Introduction of Virtual Near Neighbors.
Dionisis MargarisDionysios VasilopoulosCostas VassilakisDimitris SpiliotopoulosPublished in: IISA (2019)
Keyphrases
- rating prediction
- collaborative filtering
- recommender systems
- matrix factorization
- user ratings
- recommendation algorithms
- high dimensional
- sentiment analysis
- customer reviews
- recommendation systems
- user preferences
- virtual environment
- nearest neighbor
- transfer learning
- user profiles
- personalized recommendation
- virtual world
- natural language processing
- sparse representation
- graph kernels