Search for dissertations about: "convex variational optimization"

Found 4 swedish dissertations containing the words convex variational optimization.

  2. 1. Multidimensional inverse problems in imaging and identification using low-complexity models, optimal mass transport, and machine learning

    Author : Axel Ringh; Johan Karlsson; Rodolphe Sepulchre; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inverse problems; convex optimization; variational regularization; trigonometric moment problems; optimal mass transport; computed tomography; machine learning; analytic interpolation; delay systems; Inversa problem; konvex optimering; variationell regularisering; trigonometriska momentproblem; optimal masstransport; datortomografi; maskininlärning; analytisk interpolation; system med tidsfördröjning; Mathematics; Matematik;

    Abstract : This thesis, which mainly consists of six appended papers, primarily considers a number of inverse problems in imaging and system identification.In particular, the first two papers generalize results for the rational covariance extension problem from one to higher dimensions. READ MORE

  4. 2. Global Optimization in Computer Vision: Convexity, Cuts and Approximation Algorithms

    Author : Carl Olsson; Matematik LTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Spectral Relaxation; Normalized Cuts; Continuous Cuts; Segmentation; Generalized Convexity; 3D-Reconstruction; Global Optimization; Multiple View Geometry; Trust Region Subproblem;

    Abstract : Computer vision is today a wide research area including topics like robot vision, image analysis, pattern recognition, medical imaging and geometric reconstruction problems. Over the past decades there has been a rapid development in understanding and modeling different computer vision applications. READ MORE

  5. 3. Parameter Estimation Using Sparse Modeling: Algorithms and Performance Analysis

    Author : Ashkan Panahi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; compressed sensing; linear regression; spatial sparsity; convex variational optimization; DOA estimation; continuous LASSO; Complex LASSO;

    Abstract : The idea of representing a signal in a classical computing machine has played a central role in the field of signal processing. The last two decades have witnessed an important breakthrough in this by taking all possible linear transforms and domains into account. READ MORE

  6. 4. Aspects of Static Multi-Class Traffic equilibria under Congestion Pricing

    Author : Per Olov Lindberg; Lars-Göran Mattsson; David Watling; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; traffic; congestion pricing; equilibria; marginal social cost; Other civil engineering and architecture; Övrig samhällsbyggnadsteknik och arkitektur;

    Abstract : Congestion charging is a now accepted means of influencing traffic to behave in a more socio-economic optimal way, like e.g. in the Stockholm project. Already early work, in the 1920’s, showed that road use can be inefficient due externalities, i. READ MORE