Sökning: "begränsningar matematik"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden begränsningar matematik.

  1. 1. Matematiken i yrkesutbildningen : möjligheter och begränsningar

    Författare :Lisbeth Lindberg; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Yrkesutbildning; matematik; affordances and constraints;

    Sammanfattning : Syftet med denna avhandling är att bidra med kunskap om matematikens möjligheter och begränsningar i yrkesutbildningar. Vid analysen har flera olika teorier använts s.k. theory-guided bricolage. LÄS MER

  3. 2. On the optimal stopping time of learning

    Författare :Anna Fedyszak-Koszela; Richard Bonner; Dmitrii Silvestrov; Jacek Malec; Mälardalens högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stopping time; MATHEMATICS; MATEMATIK;

    Sammanfattning :  The goal of this thesis is to study the economics of computational learning. Attention is also paid to applications of computational learning models, especially Valiant's so-called `probably approximately correctly' (PAC) learning model, in econometric situations. LÄS MER

  4. 3. Methods for quantitative analysis of myocardial perfusion SPECT : validated with magnetic resonance imaging, phantom studies and expert readers

    Författare :Helen Fransson; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Segmentation; Quantification; Spline; Image registration; Cardiac image analysis; Myocardial perfusion SPECT;

    Sammanfattning : In this thesis, methods for automated analysis of myocardial perfusion single photon emission computer tomography (myocardial perfusion SPECT, MPS) images have been successfully developed and evaluated. MPS images show the perfusion of the myocardium and are used for diagnosing patients with suspected ischemic heart disease. LÄS MER

  5. 4. Matematiken i yrkesutbildningen : möjligheter och begränsningar

    Författare :Lisbeth Lindberg; Astrid Pettersson; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Mathematics Education; Matematik och lärande;

    Sammanfattning : The aim of this thesis is to contribute to knowledge regarding affordances and constraints of mathematics in vocational education. Different theories, i.e. theory-guided bricolage, has been used for the analyses. LÄS MER

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

    Författare :David Ek; Anders Forsgren; Jacek Gondzio; KTH; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER