Improving collaborative filtering's rating prediction coverage in sparse datasets by exploiting the 'friend of a friend' concept.
Dionisis MargarisCostas VassilakisPublished in: Int. J. Big Data Intell. (2020)
Keyphrases
- collaborative filtering
- rating prediction
- social networks
- matrix factorization
- recommender systems
- social networking
- online social networks
- social network analysis
- user ratings
- sentiment analysis
- recommendation algorithms
- user preferences
- customer reviews
- dimensionality reduction
- weakly supervised
- social relations
- fully supervised
- high dimensional