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 16 of 16 for “"statistical aspects"”.
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Statistical aspects of bioavailability
… The objective of this thesis is to review the statistical aspects associated with (i) measuring the bioavailability of a drug (Chapter 2) (ii) establishing the equivalence of a new and standard formulation of a drug (Chapter 3). In the process of reviewing the literature two problems were …
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Statistical aspects of credit scoring
This thesis is concerned with statistical aspects of credit scoring, the process of determining how likely an applicant for credit is to default with repayments. In Chapters 1-4 a detailed introduction to credit scoring methodology is presented, including evaluation of previous published work on …
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Statistical aspects of optimal transport
… and more. In this thesis, we study several statistical problems at the forefront of applied optimal transport, prioritizing statistically and computationally practical results. We begin by considering one of the most popular applications of OT in practice, the barycenter problem, providing …
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Statistical Aspects of a New Latent Trait Model
Current achievement and aptitude test modeling--item response theory--is based on the overly-optimistic assumption of local independence: that examinee's responses to different test questions will be independent conditional on the latent trait (ability) being measured by the questions. A more …
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Statistical aspects of elastic scattering spectroscopy with applications to cancer diagnosis
… precancerous changes. This thesis focuses on the statistical issue on how to eliminate irrelevant variations in the high-dimensional ESS spectra and extract the most useful information to enable the classification of tissue as normal or abnormal. Multivariate statistical methods have been used to …
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Stability, Range and Statistical Aspects of non-Abelian X-ray tomography
… ∂M. This thesis is concerned with several aspects related to the inverse problem of determining an unknown A from possibly noisy observations of CA. One focus lies on theoretical guarantees for the Bayesian approach to inverse problems, advocated for by Stuart (2010), where inference on A …
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Near-Optimal Learning and Planning in Separated Latent MDPs
We study computational and statistical aspects of learning Latent Markov Decision Processes (LMDPs). In this model, the learner interacts with an MDP drawn at the beginning of each epoch from an unknown mixture of MDPs. To sidestep known impossibility results, we consider several notions of …
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Toward an Episodic Process of Corruption: An analysis of the State Integrity Risk Assessment Tool
… that scale’s conceptual, methodological, and statistical aspects and suggests ways to improve it. Method: The indicators from the assessment’s scales are broken down conceptually, in terms of both historical and contemporary relevance, and the data are analyzed to determine their reliability …
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Sparse learning : statistical and optimization perspectives
In this thesis, we study the computational and statistical aspects of several sparse models when the number of samples and/or features is large. We propose new statistical estimators and build new computational algorithms - borrowing tools and techniques from areas of convex and discrete …
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Application of quality control and other statistical methods to the precision wood industry
Investigations were conducted of the statistical aspects of basic research, engineering development, and economic problems pertinent to the Lane Company, Altavista, Virginia, cedar chest manufacturer. Estimations were made of the quality level and variability of various manufacturing operations, …
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An investigation of academic reading skills of science foundation students at a rural university
… was predominantly quantitative, because of the statistical aspects of the data from NBT, however, it had some elements of qualitative approach through the use of a case study and the designing of an intervention strategy in response to the profile. The results of the study indicated that the …
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Experimental design and mathematical modelling methods for the study of anthelmintic resistance in UK livestock populations
… resistant nematodes in cattle. In this thesis, statistical aspects such as the analysis of cattle faecal egg count (FEC) data and the identification of statistically robust experimental study designs for the FECRT, are examined. Using field study cattle FECRT data, the validity of current …
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Statistical Methods for Studies Using Respondent Driven Sampling with Applications to Urban Indigenous Health
… information about their connectedness. However, statistical methods for data arising from RDS studies are still being developed. The objective of this thesis was to evaluate the statistical aspects of RDS as a technique for studying the health of urban Indigenous communities. Methods: Four …
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Software Reliability Models
… ML equations were derived. Some of the important statistical aspects of G -0 and Yamada <em>et al</em> models, like conditions for the existence and uniqueness of the ML equations, were not worked out so far in the literature. We have derived these conditions and proved uniqueness of the roots for …
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Cluster detection and analysis with geo-spatial datasets using a hybrid statistical and neural networks hierarchical approach
… mainly concentrated on either computational or statistical aspects of cluster detection. Each clustering algorithm has its own strengths and weakness. Their main weaknesses causing their unreliability can be estimating the number of clusters, testing the number of components, selecting initial …
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Interfacial Mechanics in Fiber-Reinforced Composites: Mechanics of Single and Multiple Cracks in CMCs
Several critical issues in the mechanics of the interface between the fibers and matrix in ceramic matrix composites (CMCs) are studied. The first issue is the competition between crack deflection and penetration at the fiber/matrix interface. When a matrix crack, the first fracture mode in a CMC, …