Computing the density of states for optical spectra of molecules by low-rank and QTT tensor approximation.
Peter BennerVenera KhoromskaiaBoris N. KhoromskijChao YangPublished in: J. Comput. Phys. (2019)
Keyphrases
- low rank
- frobenius norm
- trace norm
- high order
- tensor decomposition
- matrix factorization
- matrix decomposition
- convex optimization
- missing data
- singular value decomposition
- matrix completion
- linear combination
- low rank matrix
- low rank approximation
- rank minimization
- kernel matrix
- high dimensional data
- semi supervised
- higher order
- reconstruction error
- kullback leibler divergence
- low rank matrices
- principal component analysis
- negative matrix factorization
- tensor factorization
- non rigid structure from motion
- robust principal component analysis
- minimization problems
- data matrix
- missing values
- small number
- total variation
- kernel function
- dimensionality reduction
- feature selection
- data sets