Sökning: "Douglas-Rachford"
Hittade 4 avhandlingar innehållade ordet Douglas-Rachford.
1. Rank Reduction with Convex Constraints
Sammanfattning : This thesis addresses problems which require low-rank solutions under convex constraints. In particular, the focus lies on model reduction of positive systems, as well as finite dimensional optimization problems that are convex, apart from a low-rank constraint. LÄS MER
2. Analyses and Applications of the Peaceman--Rachford and Douglas--Rachford Splitting Schemes
Sammanfattning : Splitting methods are widely used as temporal discretizations of evolution equations. Such methods usually constitute competitive choices whenever a vector field can be split into a sum of two or more parts that each generates a flow easier to compute or approximate than the flow of the sum. LÄS MER
3. Convergence Analysis and Improvements for Projection Algorithms and Splitting Methods
Sammanfattning : Non-smooth convex optimization problems occur in all fields of engineering. A common approach to solving this class of problems is proximal algorithms, or splitting methods. These first-order optimization algorithms are often simple, well suited to solve large-scale problems and have a low computational cost per iteration. LÄS MER
4. Novel Algorithms for Optimal Transport via Splitting Methods
Sammanfattning : This thesis studies how the Douglas–Rachford splitting technique can be leveraged for scalable computational optimal transport (OT). By carefully splitting the problem, we derive an algorithm with several advantages. LÄS MER