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Research Articles (Statistics): Recent submissions
Now showing items 301-320 of 486
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(South African Statistical Association, 2018)An important question when modelling option prices is which of the multitude of option pricing models to use. In this paper, the calculation of barrier option prices is considered. These exotic options are found in many ...
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(Sage, 2019-12)Real phenomena often leads to challenges in data. One of these is outliers or influential values. Especially in a small sample, these values can have a major influence on the modeling process. In the beta regression ...
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(Health and Medical Publishing Group, 2018)BACKGROUND : Anterior cruciate ligament (ACL) injuries are common among athletes and the general public. These injuries may lead to significant absence from all activities with associated financial and social burdens for ...
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(Taylor and Francis, 2020)Some characteristics of the normal distribution may not be ideal to model in many applications. We develop a skew generalized normal (SGN) distribution by applying a skewing method to a generalized normal distribution, and ...
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(Taylor and Francis, 2018)Count data with structural zeros are common in public health applications. There are considerable researches focusing on zero-inflated models such as zero-inflated Poisson (ZIP) and zero-inflated Negative Binomial (ZINB) ...
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(Wiley, 2019-02)Since the inception of control charts by W. A. Shewhart in the 1920s, they have been increasingly applied in various fields. The recent literature witnessed the development of a number of nonparametric (distribution‐free) ...
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(Wiley, 2018-09)Early phase 2 tuberculosis (TB) trials are conducted to characterize the early bactericidal activity (EBA) of anti‐TB drugs. The EBA of anti‐TB drugs has conventionally been calculated as the rate of decline in colony ...
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(Elsevier, 2019-01)In this article, the weighted version of a probability density function is considered as a mapping of the original distribution. Generally, the properties of the distribution of a random matrix and the distributions of its ...
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(Elsevier, 2018-12)Kernel smoothing is commonly used in spatial point patterns to construct intensity plots. Kernels allow for visually and subjectively inferring on first-order stationarity. Formal objective tests exist for testing first-order ...
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(Elsevier, 2018-12)The Discrete Pulse Transform (DPT) is a nonlinear decomposition of a signal and extracts the structures in a signal at discrete scale levels. This study models the image structure extracted using the DPT as connected ...
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(Taylor and Francis, 2018)In this paper, the long term (also known as the steady-state mode) run-length theoretical properties of the four different types of synthetic and runs-rules monitoring schemes, that were empirically analysed in part 1 of ...
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(Taylor and Francis, 2018)In this paper, we discuss the short-term (also known as zero-state mode) run-length theoretical properties of the four different types of synthetic and runs-rules monitoring schemes that were empirically analyzed in another ...
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(Emerald, 2018)PURPOSE : The purpose of this paper is to emphasise the importance of high levels of trust and collaboration for increasing the likelihood of project management (PM) success. However, the link between these three constructs ...
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(Health and Medical Publishing Group, 2017)BACKGROUND : Athletes need to recover fully to maximise performance in competitive sport. Athletes who replenish more quickly and more efficiently are able to train harder and more intensely. Elite athletes subjectively ...
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(Elsevier, 2018-01)Descriptions of several oral, maxillofacial and dental conditions/diseases exist for a variety of captive large felids, but little is reported on the pathology of free roaming large felids. Apart from focal palatine erosions ...
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(Lippincott Williams and Wilkins, 2019-07)OBJECTIVE : To describe the incidence and patterns of injury and illness of male and female participants during a 94.7 km distance cycling event. DESIGN : Descriptive study. SETTING : Momentum 94.7 Cycle Challenge 2014. ...
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(Education Association of South Africa, 2018-02)Learner-to-teacher bullying is a focus area that has not been widely researched. The current research, underpinned by the ecosystemic paradigm, examined the proportion of teachers who reported exposure to bullying by ...
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(National Statistical Institute of Portugal, 2020-07)This paper paves the way when the assumption of normality is challenged within the wireless communications systems arena. Innovative results pertaining to the distributions of quadratic forms and their associated eigenvalue ...
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(Health and Medical Publishing Group, 2017)BACKGROUND : Professional mixed martial arts (MMA) has gained international popularity. No African-based studies have reported the prevalence or severity of injuries, risk factors associated with injuries or return-to-play ...
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(AOSIS OpenJournals, 2017-02-27)BACKGROUND AND OBJECTIVE : Children with attention-deficit hyperactivity disorder (ADHD) experience difficulty with expressive language, including form (e.g. grammatical construction) and content (e.g. coherence). The ...
Now showing items 301-320 of 486