Sökning: "HMM"

Visar resultat 1 - 5 av 31 avhandlingar innehållade ordet HMM.

  1. 1. Face Recognition A Single View Based HMM Approach

    Detta är en avhandling från Umeå : Tillämpad fysik och elektronik

    Författare :Hung Son Le; Umeå universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; face recognition; pattern recognition; computer vision; HMM; Hidden Markov Models; contrast enhancement; pyramid fusion; image processing; TECHNOLOGY Information technology Computer science; TEKNIKVETENSKAP Informationsteknik Datavetenskap;

    Sammanfattning : This dissertation addresses the challenges of giving computers the ability of doing face recognition, i.e. discriminate between different faces. Face recognition systems are commonly trained with a database of face images, becoming “familiar” with the given faces. LÄS MER

  2. 2. Novel Approaches to ECG-Based Modeling and Characterization of Atrial Fibrillation

    Detta är en avhandling från Umeå : Tillämpad fysik och elektronik

    Författare :Frida Sandberg; Lunds universitet.; Lund University.; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HMM; ECG; Biomedical Signal Processing; Time-Frequency Analysis; Atrial Fibrillation; Sample Entropy; AV modeling;

    Sammanfattning : Popular Abstract in Swedish Förmaksflimmer är den vanligaste rytmrubbningen i hjärtat som kräver behandling. Risken att drabbas ökar med åldern och 8% av alla åttioåringar lider av förmaksflimmer. LÄS MER

  3. 3. Efficient Methods for Automatic Speech Recognition

    Detta är en avhandling från Stockholm : KTH

    Författare :Alexander Seward; KTH.; [2003]
    Nyckelord :speech recognition; algorithms; hidden markov models; HMM; weigted finite-state transducers;

    Sammanfattning : This thesis presents work in the area of automatic speech recognition (ASR). The thesis focuses on methods for increasing the efficiency of speech recognition systems and on techniques for efficient representation of different types of knowledge in the decoding process. LÄS MER

  4. 4. Analysis and Applications of the Heterogeneous Multiscale Methods for Multiscale Elliptic and Hyperbolic Partial Differential Equations

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Doghonay Arjmand; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Multiscale Methods; HMM; Multiscale Wave Equation; Multiscale Elliptic Equation; Long Time Wave Propagation; SRA - E-Science SeRC ; SRA - E-vetenskap SeRC ;

    Sammanfattning : This thesis concerns the applications and analysis of the Heterogeneous Multiscale methods (HMM) for Multiscale Elliptic and Hyperbolic Partial Differential Equations. We have gathered the main contributions in two papers. LÄS MER

  5. 5. Two Problems in non-linear PDE’s with Phase Transitions

    Detta är en avhandling från KTH Royal Institute of Technology

    Författare :Karl Jonsson; KTH.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Conductivity jump; Free boundary problem; Quasilinear elliptic equation; Mathematical techniques; Nonlinear analysis; Free boundary; Free-boundary problems; Quasi-linear elliptic; Quasilinear elliptic equations; Hele-Shaw flow; non-local; implicit function theorem; Heterogeneous Multi Scale; HMM; Finite Element; FEM; FE; Matematik; Mathematics;

    Sammanfattning : This thesis is in the field of non-linear partial differential equations (PDE), focusing on problems which show some type of phase-transition. A single phase Hele-Shaw flow models a Newtoninan fluid which is being injected in the space between two narrowly separated parallel planes. LÄS MER