Scouts, promoters, and connectors: The roles of ratings in nearest-neighbor collaborative filtering.
Bharath Kumar MohanBenjamin J. KellerNaren RamakrishnanPublished in: ACM Trans. Web (2007)
Keyphrases
- collaborative filtering
- nearest neighbor
- recommender systems
- k nearest neighbor
- knn
- matrix factorization
- training set
- data sparsity
- collaborative filtering algorithms
- data points
- recommendation systems
- netflix prize
- high dimensional data
- nearest neighbor search
- rating matrix
- user ratings
- personalized recommendation
- user preferences
- pearson correlation coefficient
- cold start problem
- cold start
- transfer learning
- active user
- deal with information overload
- recommendation algorithms
- high dimensional
- nearest neighbor algorithm
- rating prediction
- index structure
- computational modeling
- implicit feedback
- binding sites
- demographic information
- making recommendations
- user interests
- decision trees