Essays about: "Icke-linjär optimering"

Showing result 1 - 5 of 8 essays containing the words Icke-linjär optimering.

  1. 1. On the Equivalence of Time-Varying CBF-Based Control and Prescribed Performance Control : Conversion and Qualitative Comparison

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Ryo Namerikawa; [2023]
    Keywords : Control Barrier Function; Invariance control; Nonlinear control; Prescribed Performance Control; Safety-critical system; Icke-linjär reglering; invariansreglering; säkerhetskritiska system; prestandasäkring;

    Abstract : These days, a wide range of autonomous systems, such as automobiles, delivery drones, and embedded household systems, are becoming more and more common in our society. This trend is projected to continue in the future. To effectively manage these dynamic systems, ensuring their safe operation is crucial for the well-being of our lives. READ MORE

  3. 2. Optimization of Collateral Allocation for Corporate Loans : A nonlinear network problem minimizing the expected loss in case of default

    University essay from KTH/Matematik (Avd.)

    Author : Sofia Grägg; Paula Isacson; [2022]
    Keywords : Nonlinear optimization; network problem; transportation problem; Markowitz; credit risk; Loss Given Default; Loan to Value; collateral management; many-to-many relations; modern portfolio theory; expected loss; risk management; optimization; allocation; portfolio; modeling; Icke-linjär optimering; nätverksproblem; transportproblem; Markowitz; kreditrisk; förlust givet fallisemang; belåningsgrad; säkerhetshantering; många-till-många relationer; modern portföljteori; förväntad förlust; riskhantering; optimering; allokering; portfölj; modellering.;

    Abstract : Collateral management has become an increasingly valuable aspect of credit risk. Managing collaterals and constructing accurate models for decision making can give any lender a competitive advantage and decrease overall risks. READ MORE

  4. 3. On the Identification of Nonlinear Optima in Spatially Developing Boundary Layer Flow

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Emanuel Taschner; [2021]
    Keywords : transition to turbulence; nonlinear stability analysis; boundary layer flow; övergång till turbulens; icke-linjär stabilitetsanalys; gränsskiktsflöden;

    Abstract : The present thesis studies transition to turbulence in a spatially developing bound-ary layer for subcritical Reynolds numbers. A fully nonlinear iterative direct-adjoint optimisation technique is employed to identify finite amplitude perturbations triggering transition in an energy efficient way. READ MORE

  5. 4. Conceptual Design of an Air-Launched Three-Staged Orbital Launch Vehicle

    University essay from KTH/Rymdteknik

    Author : Måns Rasmussen; [2021]
    Keywords : Air-launched; Launch Vehicle; Three-staged; Rocket; Sun-Synchronous orbit; Solid propellant; Liquid propellant; Trajectory optimization; Nonlinear programming; JAS 39 Gripen; Fighter aircraft; Luftlanserad; Trestegsraket; Solsynkron bana; Fast bränsle; Flytande bränsle; Bananalys; Icke-linjär optimering; JAS 39 Gripen; Jaktflygplan;

    Abstract : The objective of this study was to design a launch vehicle capable of deploying a nanosatellite into a Sun-synchronous orbit at 500 km orbital altitude from the JAS 39E/F Gripen fighter aircraft. This was achieved by first performing theoretical calculations for the required nozzles and solid propellant grain configurations for the first two solid stages, followed by the necessary liquid propellant configuration for the third stage. READ MORE

  6. 5. Portfolio Performance Optimization Using Multivariate Time Series Volatilities Processed With Deep Layering LSTM Neurons and Markowitz

    University essay from KTH/Matematisk statistik

    Author : Aron Andersson; Shabnam Mirkhani; [2020]
    Keywords : Recurrent Neural network RNN ; long short-term memory LSTM ; portfolio optimization; markowitz; exponential moving average; sharpe ratio; heteroskedasticity; Markowitz;

    Abstract : The stock market is a non-linear field, but many of the best-known portfolio optimization algorithms are based on linear models. In recent years, the rapid development of machine learning has produced flexible models capable of complex pattern recognition. READ MORE