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GeoMF: joint geographical modeling and matrix factorization for point-of-interest recommendation.
Defu Lian
Cong Zhao
Xing Xie
Guangzhong Sun
Enhong Chen
Yong Rui
Published in:
KDD (2014)
Keyphrases
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matrix factorization
collaborative filtering
recommender systems
item recommendation
data sparsity
cold start problem
latent factor models
low rank
implicit feedback
nonnegative matrix factorization
factorization methods
missing data
negative matrix factorization
personalized ranking
factor analysis
probabilistic matrix factorization
personalized recommendation
stochastic gradient descent
user preferences
cold start
variational bayesian
data matrix
recommendation systems
co occurrence
nearest neighbor