Sökning: "convex programming"

Visar resultat 1 - 5 av 55 avhandlingar innehållade orden convex programming.

  1. 1. On Some Properties of Interior Methods for Optimization

    Författare :Göran Sporre; KTH; []
    Nyckelord :Interior method; primal-dual interior method; linear programming; quadratic programming; nonlinear programming; semidefinite programming; weighted least-squares problems; central path;

    Sammanfattning : This thesis consists of four independent papers concerningdifferent aspects of interior methods for optimization. Threeof the papers focus on theoretical aspects while the fourth oneconcerns some computational experiments. LÄS MER

  3. 2. Model Reduction Using Semidefinite Programming

    Författare :Aivar Sootla; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; semidefinite programming; model reduction; convex optimization;

    Sammanfattning : In this thesis model reduction methods for linear time invariant systems are investigated. The reduced models are computed using semidefinite programming. Two ways of imposing the stability constraint are considered. However, both approaches add a positivity constraint to the program. LÄS MER

  4. 3. Approximate Dynamic Programming with Applications

    Författare :Andreas Wernrud; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis studies approximate optimal control of nonlinear systems. Particular attention is given to global solutions and to the computation of approximately optimal feedback controllers. The solution to an optimal control problem is characterized by the optimal value function. LÄS MER

  5. 4. Optimal Powertrain Dimensioning and Potential Assessment of Hybrid Electric Vehicles

    Författare :Nikolce Murgovski; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; powertrain sizing; plug-in slide-in HEV; Dynamic Programming; convex optimization; Hybrid electric vehicle; power management;

    Sammanfattning : Hybrid electric vehicles (HEVs), compared to conventional vehicles, complement the traditional combustion engine with one, or several electric motors and an energy buffer, typically a battery and/or an ultracapacitor. This gives the vehicle an additional degree of freedom that allows for a more efficient operation, by e.g. LÄS MER

  7. 5. Conditional Subgradient Methods and Ergodic Convergence in Nonsmooth Optimization

    Författare :Ann-Brith Strömberg; Vladimir F. Dem'yanov; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ergodic convergence; nonsmooth optimization; primal convergence; subgradient methods; conditional subgradient; Convex programming; Lagrangean relaxation;

    Sammanfattning : The topic of the thesis is subgradient optimization methods in convex, nonsmooth optimization. These methods are frequently used, especially in the context of Lagrangean relaxation of large scale mathematical programs where they are remarkably often able to quickly identify near-optimal Lagrangean dual solutions. LÄS MER