Search for dissertations about: "linear models"

Showing result 1 - 5 of 1000 swedish dissertations containing the words linear models.

  1. 1. Linear Models of Nonlinear Systems

    University dissertation from Institutionen för systemteknik

    Author : Martin Enqvist; Linköpings universitet.; Linköpings universitet.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; linear models; nonlinear systems; system identification; stochastic processes; linearization; mean-square error; TECHNOLOGY Information technology Automatic control; TEKNIKVETENSKAP Informationsteknik Reglerteknik;

    Abstract : Linear time-invariant approximations of nonlinear systems are used in many applications and can be obtained in several ways. For example, using system identification and the prediction-error method, it is always possible to estimate a linear model without considering the fact that the input and output measurements in many cases come from a nonlinear system. READ MORE

  2. 2. Model Selection and Sparse Modeling

    University dissertation from Uppsala : Institutionen för informationsteknologi

    Author : Yngve Selén; Uppsala universitet.; Uppsala universitet.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; model selection; model order selection; model averaging; nested models; sparse models; Bayesian inference; MMSE estimation; MAP estimation; ML estimation; AIC; BIC; GIC; RAKE receivers; pulse compression; radar; linear models; linear regression models; TECHNOLOGY Information technology Signal processing; TEKNIKVETENSKAP Informationsteknik Signalbehandling;

    Abstract : Parametric signal models are used in a multitude of signal processing applications. This thesis deals with signals for which there are many candidate models, and it is not a priori known which model is the most appropriate one. READ MORE

  3. 3. Translation as Linear Transduction Models and Algorithms for Efficient Learning in Statistical Machine Translation

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Markus Saers; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; linear transduction; linear transduction grammar; inversion transduction; zipper finite-state automaton; zipper finite-state transducer; formal language theory; formal transduction theory; translation; automatic translation; machine translation; statistical machine translation; HUMANITIES and RELIGION Languages and linguistics Linguistic subjects Computational linguistics; HUMANIORA och RELIGIONSVETENSKAP Språkvetenskap Lingvistikämnen Datorlingvistik; HUMANITIES and RELIGION Languages and linguistics Linguistic subjects Language technology; HUMANIORA och RELIGIONSVETENSKAP Språkvetenskap Lingvistikämnen Språkteknologi; Computational Linguistics; Datorlingvistik;

    Abstract : Automatic translation has seen tremendous progress in recent years, mainly thanks to statistical methods applied to large parallel corpora. Transductions represent a principled approach to modeling translation, but existing transduction classes are either not expressive enough to capture structural regularities between natural languages or too complex to support efficient statistical induction on a large scale. READ MORE

  4. 4. Seasonal Adjustment and Dynamic Linear Models

    University dissertation from Stockholm : Department of Statistics, Stockholm University

    Author : Can Tongur; Stockholms universitet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dynamic linear models; DLM; direct and indirect seasonal adjustment; relative efficiency; Huber loss function; Polls of polls; Wiener process; Swedish elections; statistik; Statistics;

    Abstract : Dynamic Linear Models are a state space model framework based on the Kalman filter. We use this framework to do seasonal adjustments of empirical and artificial data. A simple model and an extended model based on Gibbs sampling are used and the results are compared with the results of a standard seasonal adjustment method. READ MORE

  5. 5. Some Results on Linear Models of Nonlinear Systems

    University dissertation from Linköping, Sweden : Linköpings universitet

    Author : Martin Enqvist; Linköpings universitet.; Linköpings universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; System identification; Linear models; Nonlinear systems; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Linear time-invariant approximations of nonlinear systems are used in many a pplications. Such approximations can be obtained in many ways. READ MORE