Assessing Impacts of a Power User Attack on a Matrix Factorization Collaborative Recommender System.
Carlos E. SeminarioDavid C. WilsonPublished in: FLAIRS Conference (2014)
Keyphrases
- recommender systems
- matrix factorization
- collaborative filtering
- item recommendation
- cold start problem
- user preferences
- implicit feedback
- user profiles
- data sparsity
- low rank
- user feedback
- negative matrix factorization
- recommendation quality
- information overload
- probabilistic matrix factorization
- factor analysis
- factorization methods
- recommendation systems
- user interests
- user model
- user ratings
- cold start
- nonnegative matrix factorization
- data matrix
- variational bayesian
- product recommendation
- recommendation algorithms
- latent factor models
- tensor factorization
- stochastic gradient descent
- personalized recommendation
- missing data
- dimensionality reduction
- least squares