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Theses and Dissertations (Statistics): Recent submissions
Now showing items 1-20 of 121
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(University of Pretoria, 2024-02-13)Target 9.1 of the United Nations Sustainable Development Goals specifies the need for affordable, equitable access for all. In South Africa, where most travel occurs via the road network, apartheid policies designed the ...
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(University of Pretoria, 2023-12-07)In the era of social media, the analysis of Twitter data has become increasingly important for understanding the dynamics of online discourse. This research introduces a novel approach for tracking the spatial and temporal ...
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(University of Pretoria, 2023-11-17)In cricket, the traditional batting average is the most common measure of a cricket player’s batting performance. However, the batting average can easily be inflated by a high number of not-out innings. Therefore, in this ...
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An interactive R shiny application for learning multivariate data analysis and time series modelling (University of Pretoria, 2024-02-07)Multivariate analysis and time series modelling are essential data analysis techniques that provide a comprehensive approach for understanding complex datasets and supporting data-driven decision-making. Multivariate ...
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(University of Pretoria, 2017-05)Chapter 1 of this mini-dissertation gives an introduction to Statistical Process Control (SPC) and provides some background on the Shewhart, CUSUM and the EWMA control charts. The bootstrap by [9] Efron (1979) is discussed ...
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(University of Pretoria, 2019-08)If a known distribution on a real line is given, it can be wrapped on the circumference of a unit circle. This research entails the study of a univariate skew-normal distribution where the skew-normal distribution is ...
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(University of Pretoria, 2020)Quantile estimation is a vital aspect of statistical analyses in a variety of fields. For example, lower quantile estimation is crucial to ensure the safety and reliability of wood-built structures. Various statistical ...
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(University of Pretoria, 2019)A new body and tail generalisation of the normal distribution is introduced, the spliced generalised normal (SGN). A special case of the SGN, the tail-adjusted normal distribution, is further generalised with two-piece ...
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(University of Pretoria, 2016)This study emanates from a practical problem in the statistical process control (SPC) environment where the quality of a process is monitored. Speci cally, where the variance of a process is being assessed to be the same ...
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(University of Pretoria, 2017)The increased complexity and dimensionality of data necessitates the development of new models that can adequately model the data. Advances in computational approaches have pathed the way for consideration and implementation ...
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(University of Pretoria, 2016-10)The generalised gamma distribution has received much attention due to its exibility and also for having some well-known distributions as special cases. This study originates from a statistic de ned as the ratio of ...
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(University of Pretoria, 2017-06)Please read abstract in the document
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(University of Pretoria, 2017-08)The normal distribution is popular in many statistical contexts. However, due to its symmetry and tail behavior it may not necessarily be the best choice to use in many real world applications. In order to alleviate the ...
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(University of Pretoria, 2023)A linear network is a combination of line segments, or edges, that run between their defined endpoints, or nodes. They have become increasingly prevalent within spatial statistics due to the potential for representing ...
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(University of Pretoria, 2022)Cluster analysis is a popular unsupervised statistical method used to group observations into clusters. Identifying latent segments and groupings in the data aids in the understanding of natural phenomena. The data driven ...
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(University of Pretoria, 2023)Mixtures of quantile regressions are explored through the lens of a kernel density based EM-type algorithm and a newly proposed CEM-type algorithm. This allows the simultaneous clustering and modeling of conditional ...
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(University of Pretoria, 2022-12-07)Analysing unstructured data with minimal contextual information is a challenge faced in spatial applications such as movement data. Movement data are sequences of time-stamped locations of a moving entity analogous to text ...
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(University of Pretoria, 2023)Rarely has the world undertaken a public health effort equal in scale or scope to the one it faced in response to the COVID-19 pandemic. Countries around the world implemented government interventions such as lockdowns and ...
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(University of Pretoria, 2022-11-30)This mini-dissertation proposes constructing a family of spliced distributions at a point different from the median, hence k=1/4 instead of k=1/2, using the method of quantile splicing proposed by Mac'Oduol et al. (2020). ...
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(University of Pretoria, 2022)The volume of big data increases daily. Big data poses challenges in storage, management, processing, analysis and visualisation. One technique of handling big data is the use of subset or sample that is good representation ...
Now showing items 1-20 of 121