Unifying nearest neighbors collaborative filtering.
Koen VerstrepenBart GoethalsPublished in: RecSys (2014)
Keyphrases
- collaborative filtering
- nearest neighbor
- k nearest neighbor
- recommender systems
- knn
- data points
- high dimensional data
- matrix factorization
- distance function
- data sparsity
- nearest neighbor search
- nearest neighbor algorithm
- decision boundary
- collaborative filtering algorithms
- recommendation systems
- probabilistic matrix factorization
- user preferences
- index structure
- high dimensional
- high dimensional spaces
- training set
- making recommendations
- data sets
- user profiles
- personalized recommendation
- web pages
- feature selection
- recommendation quality
- pearson correlation coefficient
- machine learning