Search for dissertations about: "inverse problems"

Showing result 1 - 5 of 143 swedish dissertations containing the words inverse problems.

  1. 1. Numerical ice sheet modeling Forward and inverse problems

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Gong Cheng; Uppsala universitet.; Uppsala universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ice sheet modeling; finite element method; grounding line migration; inverse problems; adjoint method; Scientific Computing; Beräkningsvetenskap;

    Abstract : Ice sheets have strong influence on the climate system. Numerical simulation provides a mathematical tool to study the ice dynamics in the past and to predict their contribution to climate change in the future. Large scale ice sheets behave as incompressible non-Newtonian fluid. READ MORE

  2. 2. Inverse problems in signal processing Functional optimization, parameter estimation and machine learning

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Pol del Aguila Pla; KTH.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inverse problems; signal processing; machine learning; biomedical imaging; optimization; proximal optimization; regularization; mathematical modeling; identifiability; likelihood; logconcavity; immunoassays; convolutional coding; functional analysis; abstract inference; learned iterations; unrolled algorithms; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Inverse problems arise in any scientific endeavor. Indeed, it is seldom the case that our senses or basic instruments, i.e., the data, provide the answer we seek. READ MORE

  3. 3. Data-driven Methods in Inverse Problems

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Jonas Adler; KTH.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inverse Problems; Machine Learning; Tomography;

    Abstract : In this thesis on data-driven methods in inverse problems we introduce several new methods to solve inverse problems using recent advancements in machine learning and specifically deep learning. The main goal has been to develop practically applicable methods, scalable to medical applications and with the ability to handle all the complexities associated with them. READ MORE

  4. 4. Wave Splitting in Direct and Inverse Scattering Problems

    University dissertation from P.O. Box 118 SE 221 00 Lund Sweden

    Author : Mats Gustafsson; Lund University.; Lunds universitet.; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maxwell equations; inverse problem; Electronics; inverse scattering; wave splitting; Elektronik;

    Abstract : The focus of this thesis is on the use of wave splitting in electromagnetic direct and inverse scattering problems. Wave splitting offers a decomposition of wave fields into appropriate input and output wave constituents. READ MORE

  5. 5. Inverse Problems for Graph Laplacians

    University dissertation from Marlena Nowaczyk

    Author : Marlena Nowaczyk; Lund University.; Lunds universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spectral theory; Laplace operator; Trace formula; Quantum graphs;

    Abstract : This thesis is devoted to inverse spectral problems for Laplace operators on metric graphs, and it is based on the following papers: Paper I - P. Kurasov and M. Nowaczyk 2005 Inverse spectral problem for quantum graphs J. Phys. READ MORE