Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 120 for “"Statistical modelling"”.
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Statistical modelling of earthquake-induced liquefaction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1986.
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Statistical modelling and inference for financial auditing
… values. This situation is often encountered in statistical applications such as statistical auditing, reliability, insurance, meteorology and biostatistics. The motivating example underlying this research is that of auditing (see the report published by the National Academy Press entitled …
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Four essays on statistical modelling of environmental data
This dissertation deals with geostatistical, time series, and regression analytical approaches for modelling spatio-temporal processes, using air quality data in the applications. The work is structured into four essays the abstracts of which are given in the following. The first essay is titled …
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STATISTICAL MODELLING AND ANALYSIS FOR REGIONAL CLIMATE CHANGE
… adapted and extended to a multivariate multisite statistical downscaling (MMSD) approach for regional climate change study. Along with these statistical modeling approaches, observational investigation of the climate change signal in the gauge-based precipitation observations was also carried out. …
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Statistical modelling and variability of the subtropical front, New Zealand
… We therefore propose a new and innovative statistical modelling approach to detecting and monitoring ocean fronts from AVHRR SST images. Weighted local likelihood is used to provide a nonparametric description of spatial variations in the position and strength of individual fronts within an …
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Statistical modelling of environmental trends over both time and space
… data represents an opportunity to use statistical tools to provide a better understanding of changes over time and space, making it easier to tackle problems such as pollution, water quality or climate change. The analysis of environmental data requires methodologies that allow us to fit …
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Statistical modelling of body composition in children and their parents
Several methods of assessing body composition are presented and discussed in this thesis. The assessment of body composition has been a leading area of research for many years. The increasing prevalence of obesity in recent years has done nothing but stress the importance of having accurate and …
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Evaluation System for Craniosynostosis Surgeries with Computer Simulation and Statistical Modelling
Craniosynostosis is a pathology in infants when one or more sutures prematurely closed, leading to abnormal skull shape. It has been classified according to the specific suture that has been closed, each of which has a typical skull shape. Surgery is the common treatment to correct the deformed …
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Multivariate statistical modelling of family formation processes among women in Namibia
Family formation is a significant event in life-course of individuals. Many studies have revealed shifts in demographic processes including child-bearing patterns, age at sexual debut and first marriage, and marital status over the years. While there have been numerous studies in demographic …
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Statistical modelling of congruence and association between perceptual and complete networks
"Structural analysis of social networks using statistical techniques has been evolving into sophisticated models for the last 60 years. These statistical models and techniques have been predominantly concerned with the structure of a global network. Statistical approaches to the analysis of …
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Empirical statistical modelling for crop yields predictions: bayesian and uncertainty approaches
This thesis explores uncertainty statistics to model agricultural crop yields, in a situation where there are neither sampling observations nor historical record. The Bayesian approach to a linear regression model is useful for predict ion of crop yield when there are quantity data issue s and the …
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Statistical modelling of performance data for molecular amplification methods in diagnostic virology
… are identified. In particular, rigorous statistical methods are used and developed to interrogate, for the first time, the large reservoir of QCMD data and model participants’ performance over time for different pathogens. Furthermore, new scoring schemes are developed to assess …
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Statistical Modelling of Mosquito Abundance and West Nile Virus Risk with Weather Conditions
… of mosquito surveillance data and built the statistical forecasting models to predict the West Nile virus risk. In the first part, using mosquito data from the surveillance program in Peel Region, Ontario, we studied the distribution properties of Culex mosquito abundance data for the period …
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Statistical modelling of the transition toughness properties of low alloy pressure vessel steels
… and irradiation damage response of the material. Modelling of the inherent scatter of toughness measurements has received much academic interest since the mid-twentieth century and is found to be dependent on a number of metallurgical factors and failure modes; therefore, the micro-mechanisms of …
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Factors Associating with the Future Citation Impact of Published Articles: A Statistical Modelling Approach
This study investigates a range of metrics available when an article is published to see which metrics associate with its eventual citation count. The purposes are to contribute to developing a citation model and to inform policymakers about which predictor variables associate with citations in …
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MRI for gray matter: statistical modelling for in-vivo application and histological validation of dMRI
… and microstructure measures using phenotypic modelling of structural and diffusion MRI data obtained from a large twin and sibling population (N = 840). Results of this study showed that in GM, while sMRI measures like cortical thickness and GM volume are mainly affected by genetic factors, …
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Statistical modelling of the association between dietary diversity, dietary patterns and non-communicable diseases in Namibia
… diversity in Namibia, (ii) using bivariate count modelling approach in analyzing convenience and non-convenience consumption food preference in Windhoek, (iii) applying copula joint modelling of food insecurity indicators with application to food insecurity prevalence (FIP), household dietary …
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Integrating dynamic and statistical modelling approaches in order to improve predictions for scenarios of environmental change
… Therefore, it has often been suggested to link statistical and mechanistic modelling approaches in order to make more realistic predictions of species’ distributions for scenarios of environmental change. In this thesis, I present two different ways of such linkage. (i) Mechanistic modelling can …
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Statistical modelling for the prognostic classification of patients with pancreatic cancer for optimisation of treatment allocation
… factor studies were identified but size and statistical methods were inappropriate. Continuous variables are often simplified incorrectly i) assuming linear relationships between predictors and log-hazard or ii) using dichotomisation. Non-linearity is addressed for the first time in this …
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