Keyphrases
- context aware
- matrix factorization
- collaborative filtering
- recommendation systems
- cold start
- recommender systems
- contextual information
- data sparsity
- mobile devices
- low rank
- context awareness
- ubiquitous computing
- ambient intelligence
- probabilistic matrix factorization
- negative matrix factorization
- nonnegative matrix factorization
- cold start problem
- user preferences
- ubiquitous learning
- factorization methods
- factor analysis
- smart home
- context aware systems
- context aware services
- variational bayesian
- trust model
- latent factors
- mobile users
- tensor factorization
- context aware ubiquitous learning
- personalized recommendation
- user profiles
- ubiquitous computing environments
- smart spaces
- ubiquitous environment
- missing data
- item recommendation
- context aware mobile
- digital libraries
- user ratings
- current context
- implicit feedback
- user model
- context aware computing