Search for dissertations about: "Likelihood ratio"

Showing result 1 - 5 of 126 swedish dissertations containing the words Likelihood ratio.

2. 1. Likelihood-Based Tests for Common and Idiosyncratic Unit Roots in the Exact Factor Model

   Author : Martin Solberger; Rolf Larsson; Johan Lyhagen; Jean-Pieree Urbain; Uppsala universitet; []
   Keywords : panel unit root; dynamic factors; maximum likelihood; Lagrange multiplier; likelihood ratio; factor analysis; Statistics; Statistik;

   Abstract : Dynamic panel data models are widely used by econometricians to study over time the economics of, for example, people, firms, regions, or countries, by pooling information over the cross-section. Though much of the panel research concerns inference in stationary models, macroeconomic data such as GDP, prices, and interest rates are typically trending over time and require in one way or another a nonstationary analysis. READ MORE

4. 2. Selection and ranking procedures based on likelihood ratios

   Author : Jayanti Chotai; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Subset selection; likelihood ratio; hypothesis testing; order restrictions; normal distribution; uniform distribution; complete ranking; P* -condition; loss function;

   Abstract : This thesis deals with random-size subset selection and ranking procedures• • • )|(derived through likelihood ratios, mainly in terms of the P -approach.Let IT , . .. READ MORE

5. 3. Semiparametric survival models for routine register data

   Author : Frank Eriksson; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Survival; transformation; clustered; likelihood; random effects; case-cohort; routine register; semiparametric; clustered;

   Abstract : Routine registers offer researchers opportunities to carry out studies of covariate effects on lifetimes of rare diseases otherwise infeasible because of the large cohorts required. Familial relationships necessary for analysis of environmental or genetic factors can be identified by record linking. READ MORE

6. 4. On Bit-Wise Decoders for Coded Modulation

   Author : Mikhail Ivanov; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bit-error probability; L-values; labeling; Gray code; coded modulation; log-likelihood ratio; maximum likelihood decoder; Additive white Gaussian noise; quadrature amplitude modulation.; interleaver; flat fading channel; pairwise error probability;

   Abstract : Coded modulation is a technique that emerged as a response to the growing demand for high data rates. It was devised to achieve high spectral efficiency with high reliability, potentially approaching Shannon’s capacity. The main idea of coded modulation consists in combining error-correcting coding with higher-order modulation. READ MORE

7. 5. Assessment of balance control in relation to fall risk among older people

   Author : Ellinor Nordin; Lillemor Lundin-Olsson; Anna Ramnemark; Gun-Britt Jarnlo; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; older people; falls; interactive gait; TUG; GUG; balance confidence; likelihood ratio; validity; reliability; risk factors; assessment; balance; gait; mobility; physical function; dual-task costs; step width; Physiotherapy; Sjukgymnastik fysioterapi;

   Abstract : Falls and their consequences among older people are a serious medical and public health problem. Identifying individuals at risk of falling is therefore a major concern. READ MORE