Search for dissertations about: "Autocorrelated data"

Showing result 1 - 5 of 11 swedish dissertations containing the words Autocorrelated data.

2. 1. Data mining of geospatial data: combining visual and automatic methods

   Author : Urška Demšar; Hans Hauska; Peter A. Burrough; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; geographic information science; geoinformatics; geovisualisation; spatial data mining; visual data mining; usability evaluation; Other information technology; Övrig informationsteknik;

   Abstract : Most of the largest databases currently available have a strong geospatial component and contain potentially useful information which might be of value. The discipline concerned with extracting this information and knowledge is data mining. Knowledge discovery is performed by applying automatic algorithms which recognise patterns in the data. READ MORE

4. 2. Essays on Capability Indices for Autocorrelated Data

   Author : Erik Wallgren; Anders Christoffersson; Jan Wretman; Uppsala universitet; []
   Keywords : Statistics; Capability Indices; Autocorrelated data; Monte Carlo Simulations; Statistik;

   Abstract : The use of process capability indices in the industry is traditionally based on the assumptions that a sample from a process are observations on independently, identically and normally distributed random variables, IIN. However, all three assumptions are open to discussion and in this thesis, the estimation of the indices is studied when the assumption of independence is not fulfilled. READ MORE

5. 3. Classification of Remotely Sensed Data Utilising the Autocorrelation between Spatio-Temporal Neighbours

   Author : Ann-Marie Flygare; Sweden Umeå Umeå University Department of Mathematical Statistics; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Image classification; strong mixing; spatio-temporal model; autocorrelation model; autocorrelation estimator; robustness aspects; strong consistency; asymptotic normality; evaluation; Statistik; Statistics;

   Abstract : The subject of this thesis is methods for classifying land using satellite images, and adherent parameter estimation. A satellite image consists of a set of pixels where measurements of spectral intensities are observed. Based on these spectral intensities, each pixel is assigned a class. READ MORE

6. 4. Random Models in Time and Space with Financial, Economics and Engineering Applications : Structural Covariance in Space and Stochastic Variability in Time

   Author : Nima Shariati; Statistiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Cross-border spillover; Inter- and intralocation effects; Multivariate spatial regression models; Panel data; Spatial econometric models; Gamma distributed variances; Generalized Laplace distribution; Modulated volatility; Non-Gaussian time series; Road profile; Spatial vector autoregressive model; Outlier; Robust control chart; Robust estimation;

   Abstract : In this thesis, we model stochastic processes in time and space. We focus on the processes whose covariance structure is either changing over the time span, or depends on the location in space. We develop models that appropriately describe and analyze such data behaviors in various different fields including finance, economics and engineering. READ MORE

7. 5. Application of Statistical Methods : Challenges Related to Continuous Industrial Processes

   Author : Peder Lundkvist; Bart De Ketelaere; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kvalitetsteknik; Quality Technology Management;

   Abstract : For decades, many efficient statistical improvement methods have been available to improve the quality of processes and products. Statistical process control (SPC), process capability analysis (CA), and design of experiments (DoE) are among the most powerful process monitoring and problem-solving methods in the quality engineering toolbox. READ MORE