Search for dissertations about: "subspace methods"

Showing result 1 - 5 of 44 swedish dissertations containing the words subspace methods.

  1. 1. Identification of stochastic systems Subspace methods and covariance extension

    University dissertation from Stockholm : Matematik

    Author : Anders Dahlen; KTH.; [2001]
    Keywords : Subspace identification; Time series; ARMA-modeling; Spectral estimation; Covariance extension; Asymptotic analysis;

    Abstract : .... READ MORE

  2. 2. Numerical Methods for Wave Propagation Analysis and Applications in Quantum Dynamics

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Emil Kieri; Uppsala universitet.; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; computational wave propagation; quantum dynamics; time-dependent Schrödinger equation; spectral methods; Gaussian beams; splitting methods; low-rank approximation; Scientific Computing; Beräkningsvetenskap;

    Abstract : We study numerical methods for time-dependent partial differential equations describing wave propagation, primarily applied to problems in quantum dynamics governed by the time-dependent Schrödinger equation (TDSE). We consider both methods for spatial approximation and for time stepping. READ MORE

  3. 3. On performance analysis of subspace methods in system identification and sensor array processing

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Magnus Jansson; KTH.; [1995]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; subspace methods; system identification; state-space models; linear regression; sensor array processing; performance analysis; EM algorithm; minimum redundancy array;

    Abstract : This thesis addresses the issue of performance analysis of subspace-based parameter estimation methods in two different applications, namely system identification and sensor array processing.  The objective is to study the quality of the estimated models as the amount of data increases, and to suggest improvements and give user guidelines. READ MORE

  4. 4. Hidden Markov models - Traffic modeling and subspace methods

    University dissertation from Centre for Mathematical Sciences, Lund University

    Author : Sofia Andersson; Lunds universitet.; Lund University.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; programming; actuarial mathematics; Statistik; operationsanalys; Statistics; operations research; subspace identification; state space representation; likelihood estimation; Poissonification; traffic analysis; hidden Markov model; Markov-modulated Poisson process; programmering; aktuariematematik;

    Abstract : The main motivation for this thesis, however not the only one, is the search for models for traffic in telecommunication networks. Traffic characterization and modeling are of great importance in the analysis and dimensioning of communication systems. During the last decades we have experienced an explosive growth of our telecommunication networks. READ MORE

  5. 5. Information Retrieval Using Krylov Subspace Methods

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Katarina Blom; Göteborgs universitet.; Gothenburg University.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this dissertation we discuss how simple Krylov subspace methods can be used for information retrieval (IR). The dissertation consists of two parts. The first part gives a background of IR and introduces the vector space model for IR and the Krylov subspace methods that we use. The second part consists of four articles. READ MORE