Scouts, promoters, and connectors: the roles of ratings in nearest neighbor collaborative filtering.
Bharath Kumar MohanBenjamin J. KellerNaren RamakrishnanPublished in: EC (2006)
Keyphrases
- collaborative filtering
- nearest neighbor
- k nearest neighbor
- recommender systems
- knn
- matrix factorization
- high dimensional data
- high dimensional
- collaborative filtering algorithms
- user ratings
- user preferences
- training set
- data sparsity
- nearest neighbor search
- pearson correlation coefficient
- data points
- index structure
- implicit feedback
- computational modeling
- cold start problem
- recommendation systems
- escherichia coli
- rating matrix
- nearest neighbor algorithm
- deal with information overload
- personalized recommendation
- transfer learning
- cold start
- product recommendation
- user interests
- gene expression
- netflix prize
- probabilistic matrix factorization
- user profiles
- neural network
- nearest neighbor queries
- latent factor models
- making recommendations