Search for dissertations about: "nonlinear programming"

Showing result 1 - 5 of 63 swedish dissertations containing the words nonlinear programming.

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

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

   Abstract : 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. READ MORE

4. 2. Nonlinear Programming - Robust Models and Applications

   Author : Christoffer Cromvik; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; optimization; robustness; multi-objective optimization; stochastic mathematical programs with equilibrium constraints; conditional value-at-risk; IMRT; traffic network design; airbag folding; Origami; airbag folding;

   Abstract : The major theme of this thesis is nonlinear programming with an emphasis on applications and robust models. The thesis has two parts. The first three papers comprise the first part. Here, we discuss robustness properties of optimal solutions to a variety of models. READ MORE

5. 3. Approaches to accelerate methods for solving systems of equations arising in nonlinear optimization

   Author : David Ek; Anders Forsgren; Jacek Gondzio; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nonlinear optimization; mathematical programming; interior-point methods; approximate solutions to systems of linear equations; method of conjugate gradients; quasi-Newton methods; modified Newton methods; Ickelinjär optimering; matematisk programmering; inre-punktsmetoder; approximativa lösningar till linjära ekvationssystem; konjugerade gradientmetoden; kvasi-Newtonmetoder; modifierade Newtonmetoder.; Optimization and Systems Theory; Optimeringslära och systemteori;

   Abstract : Methods for solving nonlinear optimization problems typically involve solving systems of equations. This thesis concerns approaches for accelerating some of those methods. In our setting, accelerating involves finding a trade-off between the computational cost of an iteration and the quality of the computed search direction. READ MORE

6. 4. Feasible Direction Methods for Constrained Nonlinear Optimization : Suggestions for Improvements

   Author : Maria Mitradjieva-Daneva; Maud Göthe-Lundgren; Torbjörn Larsson; Clas Rydergren; Anders Forsgren; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; constrained nonlinear optimization; feasible direction methods; conjugate directions; traffic equilibrium problem; sequential linear programming algorithm; stochastic transportation problem; Optimization; systems theory; Optimeringslära; systemteori;

   Abstract : This thesis concerns the development of novel feasible direction type algorithms for constrained nonlinear optimization. The new algorithms are based upon enhancements of the search direction determination and the line search steps. READ MORE

7. 5. Self-organization and Intervention of Nonlinear Multi-agent Systems

   Author : Yuecheng Yang; Xiaoming Hu; Torkel Glad; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multi-agent system; linear system; nonlinear system; opinion dynamics; crowd dynamics; leader-follower based model; optimal control; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

   Abstract : This dissertation concerns the self-organization behaviors in different types of multi-agent systems, and possible ways to apply interventions on top ofthat to achieve certain goals. A bounded confidence opinion dynamics modelis considered for the first two papers. READ MORE