A Fast Semidirect Least Squares Algorithm for Hierarchically Block Separable Matrices.
Kenneth L. HoLeslie GreengardPublished in: SIAM J. Matrix Anal. Appl. (2014)
Keyphrases
- least squares
- learning algorithm
- computational complexity
- optimization algorithm
- search space
- k means
- significant improvement
- simulated annealing
- dynamic programming
- experimental evaluation
- matching algorithm
- objective function
- neural network
- preprocessing
- recognition algorithm
- detection algorithm
- distance matrix
- worst case
- eigendecomposition
- convex hull
- clustering method
- maximum likelihood
- np hard
- optimal solution