A Multilevel Proximal Gradient Algorithm for a Class of Composite Optimization Problems.
Panos ParpasPublished in: SIAM J. Sci. Comput. (2017)
Keyphrases
- cost function
- experimental evaluation
- dynamic programming
- learning algorithm
- np hard
- k means
- simulated annealing
- optimization problems
- preprocessing
- computational cost
- segmentation algorithm
- times faster
- objective function
- combinatorial optimization
- graph cuts
- theoretical analysis
- improved algorithm
- gradient information
- optimization criteria
- convex hull
- matching algorithm
- optimization algorithm
- particle swarm optimization
- input image
- computational complexity
- video sequences
- similarity measure