Essays about: "approximationer"

Showing result 1 - 5 of 61 essays containing the word approximationer.

1. 1. Randomized Diagonal Estimation

   University essay from KTH/Matematik (Avd.)

   Author : Niclas Joshua Popp; [2023]
   Keywords : Diagonal estimation; randomized numerical linear algebra; low-rank approximation; matrix functions; Diagonalestimering; randomiserad numerisk linjär algebra; lågrankad approximation; matrisfunktioner;

   Abstract : Implicit diagonal estimation is a long-standing problem that is concerned with approximating the diagonal of a matrix that can only be accessed through matrix-vector products. It is of interest in various fields of application, such as network science, material science and machine learning. READ MORE

3. 2. Simulations of a self-stabilizing fully submerged hydrofoil

   University essay from KTH/Matematik (Avd.)

   Author : Henry Jacobson; [2023]
   Keywords : Hydrofoil; Self-Stabilizing; Lifting Line Theory; Fluid Mechanics; Numerical Methods; Backward Differentiation Formula; Fully Submerged Hydrofoil; Bärplan; bärplansbåt; självstabiliserande; lyftande linjeteori; strömningsme- kanik; numeriska metoder; Backward Differentiation Formula; fullt nedsänkt bärplan;

   Abstract : Two models of a self-stabilizing hydrofoil system is developed where the effects from the struts and hydrofoil give torques for angular rotations. Lifting line theory for the hydrofoil which can twist is used. Nonlinear versions of the models are also developed and compared to find that the linear models use valid approximations. READ MORE

4. 3. Methods for local energy and climate planning : A Case stuudy on the Urban Community of Dunkirk

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Sacha Thibault; [2023]
   Keywords : Energy transition - Climate and energy policy - Renewable energy - Decision-Support Tools - Local authorities; Energiomställning - Klimat- och energipolitik - Förnybar energi - Verktyg för beslutsstöd - Lokala myndigheter;

   Abstract : Energy management concerns were raised in France after the oil crisis in the 1970s. From then, the local actors developed policies to better control the energy production and consumption on the territories. Climate considerations and the need to limit greenhouse gases (GHG) emissions were then added to these energy issues in the early 2000s. READ MORE

5. 4. Solving Ordinary Differential Equations and Systems using Neural Network Methods

   University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

   Author : Mimmi Westrin; [2023]
   Keywords : Neural network methods; trial solutions; numerical methods; Lotka-Volterra system; SEIR model;

   Abstract : The applications of differential equations are many. However, many differential equations modelling real-world scenarios are very complex and it can be of great difficulty to find an exact solution if one even exists. Thus, it is of importance to be able to approximate solutions of differential equations. READ MORE

6. 5. Multi-factor approximation : An analysis and comparison ofMichael Pykhtin's paper “Multifactor adjustment”

   University essay from Umeå universitet/Institutionen för matematik och matematisk statistik

   Author : Michael Zanetti; Philip Güzel; [2023]
   Keywords : Credit risk; Value at Risk; Expected Shortfall; Monte Carlo simulation; Advanced Internal Rantings-Based models; Kreditrisk; Value at Risk; Expected Shortfall; Monte Carlo simulation; Advanced Internal Rantings-Based-modeller;

   Abstract : The need to account for potential losses in rare events is of utmost importance for corporations operating in the financial sector. Common measurements for potential losses are Value at Risk and Expected Shortfall. These are measures of which the computation typically requires immense Monte Carlo simulations. READ MORE