Step Size Determination for Finding Low-Rank Solutions Via Non-Convex Bi-Factored Matrix Factorization.
Reinhard PanhuberLudger PrüntePublished in: EUSIPCO (2020)
Keyphrases
- matrix factorization
- low rank
- step size
- stochastic gradient descent
- convex optimization
- collaborative filtering
- convergence rate
- low rank matrix
- cost function
- recommender systems
- convergence speed
- missing data
- matrix completion
- factorization methods
- nonnegative matrix factorization
- negative matrix factorization
- factor analysis
- data matrix
- low rank matrix factorization
- high order
- high dimensional data
- convex relaxation
- pattern recognition
- binary matrix
- wavelet coefficients
- closed form solutions
- signal processing
- higher order
- multiresolution
- high dimensional
- image processing