Randomized block Krylov subspace algorithms for low-rank quaternion matrix approximations.
Chaoqian LiYonghe LiuFengsheng WuMaolin ChePublished in: Numer. Algorithms (2024)
Keyphrases
- low rank
- rank minimization
- factorization methods
- eigendecomposition
- matrix factorization
- convex optimization
- minimization problems
- high dimensional data
- singular value decomposition
- matrix completion
- trace norm
- low rank representation
- regularized regression
- linear combination
- missing data
- low rank matrices
- matrix decomposition
- kernel matrices
- low rank matrix
- learning algorithm
- kernel matrix
- affinity matrix
- low rank approximation
- low dimensional
- similarity measure
- approximation methods
- data matrix
- high dimensional
- feature space
- feature extraction