Recommender systems: the case of repeated interaction in matrix factorization.

Felix Sommer Fabian Lecron François Fouss

Published in: WI (2017)

Keyphrases

matrix factorization
recommender systems
collaborative filtering
low rank
negative matrix factorization
cold start problem
data sparsity

nonnegative matrix factorization
probabilistic matrix factorization
factorization methods
item recommendation
factor analysis
missing data
human computer interaction

implicit feedback
user preferences
latent factor models
variational bayesian
user interaction
stochastic gradient descent
recommendation systems

search engine
personalized ranking
binary matrix
feature extraction
least squares
cold start
user profiles