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 18 of 18 for “"Change point analysis"”.
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Neural Correlates of Stress Recovery in a Positive Emotional Context
… context assignment, we also investigated how changes in positive mood correlated with neural activation changes to the stressor. We found evidence for positive emotions facilitating negative emotion recovery through enhancing cognitive control (decentering thoughts) and providing positive …
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Developing Adiabatic Two-Phase Flow
… distance using a statistical method known as Change Point Analysis. The distance at which the phases become separated can be an important parameter in design of inlet tubes to evaporators. A method for determining the void fraction from the visualization results was developed and presented. …
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Variance Change Point Detection under A Smoothly-changing Mean Trend with Application to Liver Procurement
Literature on change point analysis mostly requires a sudden change in the data distribution, either in a few parameters or the distribution as a whole. We are interested in the scenario that the variance of data may make a significant jump while the mean of data changes in a smooth fashion. It is …
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Detecting change-points in a Compound Poisson Process
A statistical change point problem was first studied in the mid-1950s in the context of quality control in industrial processes. A change point is defined as a point in the time order when the probability distribution of a sequence of observations differs before and after that point. The literature …
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Algorithms And Tools For Computational Analysis Of Human Transcriptome Using Rna-Seq
… normalized base-wise read coverage signals and a change-point analysis, followed by a parametric statistical hypothesis test using Schwarz Information Criterion (SIC) to detect significant differential splicing events in the form of the five well-known splicing types. The results of both …
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Improving transit demand management with Smart Card data : general framework and applications
… possible data sources and methods for supporting analysis. This framework was applied to a fare incentive strategy implemented at Hong Kong's MTR system. In addition to establishing existing congestion patterns, a customer classification analysis was performed to understand the typical travel …
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High-dimensional change point detection for mean and location parameters
Change point inference refers to detection of structural breaks of a sequence observation, which may have one or more distributional shifts subject to models such as mean or covariance changes. In this dissertation, we consider the offline multiple change point problem that the sample size is fixed …
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Migratory Ecology of Sea Turtles
… capacity of these animals to adapt to climate change. Leatherback turtle populations may not be expected to respond directly to increasing global temperatures by shifting their nesting phenology, and so nesting under cooler seasonal conditions; however, this could still occur in populations …
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Modelling animal movement in heterogeneous environments: from statistical inferential models to individual-based models
… Chain Monte Carlo (MCMC) model, and a vector analysis, I illustrated that the behavioural states categorised by the MCMC model were actually a combination of movement behaviour and wind displacement. This analysis demonstrated how displacement by fluid external forces can change the …
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Inference and Estimation in Change Point Models for Censored Data
<p>In general, the change point problem considers inference of a change in distribution for a set of time-ordered observations. This has applications in a large variety of fields and can also apply to survival data. With improvements to medical diagnoses and treatments, incidences and mortality …
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Striped Bass and Summer Flounder Population Dynamics in the Chesapeake Bay: an Ecosystem Based Evaluation
… Striped bass and summer flounder have exhibited changes in abundance over recent years within the Chesapeake Bay. There is a lack of understanding of how environmental factors may be impacting striped bass and summer flounder abundance and how other species may be responding to these …
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Detecting examinees with item pre-knowledge in computer based large-scale assessment
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01
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The palaeolimnological record of regime shifts in lakes in response to climate change
… response to both abrupt and continuous climate change, and the imprints they leave in palaeolimnological records allow us to investigate and better understand patterns and processes governing ecological changes on geological time scales. This thesis aims at investigating palaeolimnological …
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The importance of data collection to support decision making in energy systems
… making, and show that Value of Information analysis (VoI) provides a clear and rigorous methodology for studying this. It begins by explaining the VoI framework, and then extends it to allow the study of complex decision making problems where decision policies are required, and the benefit …
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Statistical inference in complex networks: community detection, change-point detection, link prediction, and two-sample testing
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01
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Predictive design analytics for optimal system design
… tree for large-scale data, discrete choice analysis for demand modeling, and automatic time series forecasting for trend analysis. DTM dynamically reveals design attribute patterns that affect demands. A new design framework, Predictive Life Cycle Design (PLCD), is formulated, which connects …
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Analisi e gestione dei sistemi di accumulo dell’energia a batteria e degli impianti fotovoltaici
… come identificare il RUL secondo la cosiddetta change point analysis. Contestualmente, nell'ottica di una sempre più efficiente integrazione delle batterie negli impianti rinnovabili, sono stati studiati gli aspetti legati agli impianti fotovoltaici. Pertanto, il Capitolo 7 si concentra sulla …