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Lower Bounds for Matrix Factorization.
Ben Lee Volk
Mrinal Kumar
Published in:
Comput. Complex. (2021)
Keyphrases
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matrix factorization
lower bound
upper bound
collaborative filtering
recommender systems
missing data
low rank
negative matrix factorization
nonnegative matrix factorization
worst case
factor analysis
objective function
factorization methods
data sparsity
variational bayesian
stochastic gradient descent
factorization method
optimal solution
item recommendation
implicit feedback
supervised learning