Search for dissertations about: "least"

Showing result 1 - 5 of 4213 swedish dissertations containing the word least.

  2. 1. Algorithms for a Partially Regularized Least Squares Problem

    Author : Ingegerd Skoglund; Tommy Elfving; Inge Söderkvist; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Least squares; Regularization; Block-matrices; Conjugate gradient; QR-factorization; Cross-validation; Numerical analysis; Numerisk analys;

    Abstract : Vid analys av vattenprover tagna från t.ex. ett vattendrag betäms halten av olika ämnen. Dessa halter är ofta beroende av vattenföringen. READ MORE

  4. 2. Analysis of Some Methods for Identifying Dynamic Errors-in-variables Systems

    Author : Mei Hong; Torsten Söderström; Magnus Jansson; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; system identification; errors-in-variables; least squares; instrumental variable; maximum likelihood; bias compensated least squares; bias eliminating least squares; Frisch scheme; higher-order statistics; accuracy analysis; periodic data; Signal processing; Signalbehandling;

    Abstract : A system where errors or noises are present on both the inputs and the outputs is called an errors-in-variables (EIV) system. EIV systems appear in industrial and agricultural processes, medical sciences, economical systems, biotechnology, as well as in many other areas. READ MORE

  5. 3. Fast Algorithms for Integral Equations and Least Squares Identification Problems

    Author : Stefan Ljung; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fast algorithms; Integral equations; Least squares; Identification;

    Abstract : This work is concerned with fast algorithms for integral equations and least squares identification problems.The presentation is divided into three parts. In the first part a fast algorithm for solving systems oflinear equations with a matrix that is alm ost Toeplitz is derived and applied to Fredholm integral equations with stationary kernels. READ MORE

  6. 4. "At Least There is Something!" : Strategic decision-making by female farmers in Western Kenya

    Author : Helen Nyberg; Mats Widgren; Peter Kinlund; Anders Närman; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Western Kenya; Luo; Luhya; female farmers; gender system; gender contract; intensification of agriculture; diversification of agriculture; diversification of economic sources; Human geography; Kulturgeografi;

    Abstract : In rural sub-Saharan Africa women are often described as the most important farmers, producing the bulk of subsistence food. In this study it is shown that female farmers in the four visited villages of Western Kenya are much more than farmers. READ MORE

  7. 5. Bilinear Regression and Second Order Calibration

    Author : Marie Linder; Pieter Kroonenberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; chemometrics; calibration; multivariate; hyphenated methods; matrix data; bilinear model; least squares; singular value decomposition; generalized rank annihilation; trilinear decomposition; parallel factor analysis; principal components regression; partial least squares; prediction; matematisk statistik; Mathematical Statistics;

    Abstract : We consider calibration of second-order (or "hyphenated") instruments for chemical analysis. Many such instruments generate bilinear two-way (matrix) type data for each specimen. The bilinear regression model is to be estimated from a number of specimens of known composition. READ MORE