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.
Results
Showing 1 to 20 of 24 for “"Main Model"”.
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Fine-grained sentiment analysis for customer review
… provide more useful information, the proposed models' performance were relative poor compared with document-level or sentence-level sentiment analysis due to the lack of well-labeled aspect-level dataset. This thesis propose a semi-supervised approach using pre-trained BERT model to conduct the …
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Statistical approaches to population genetics
… pressures occurring in the population. Three main model types, the branching processes, the Markov chains, and the diffusion processes are discussed. Published results on the subject are presented along with some new investigations. Comparable results obtained by various authors are checked, …
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Accelerated optimisation methods for low-carbon building design
… of optimisation using Kriging surrogate models on low-carbon building design problems. Their performance is compared with established genetic algorithms operating without a surrogate on a range of different types of building-design problems. The advantages and disadvantages of a Kriging …
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Mathematical modelling of evaporation mechanisms and instabilities in cryogenic liquids
<p class="MsoNormal">In this thesis we propose a model for laminar natural convection within a mixture of two cryogenic fluids with preferential evaporation. </p> <p class="MsoNormal">This full model was developed after a number of smaller models of the behaviour of the surface of the fluid had …
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A review of current Rough Volatility Methods
… those wishing to implement these techniques. The models of rough dynamics are built upon the fractional Brownian Motion and its associated powerlaw kernel. One such model is called the Rough Heston, an extension of the Classical Heston model, and is the main model of focus for this dissertation. …
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Essays on inequality, interest rates and macroeconomic policies
… First, I show that in many common macroeconomic models consumption is a linear function of permanent (labor) income. This implies that macroeconomic aggregates are neutral with respect to shifts in the distribution of permanent income. Motivated by this neutrality result, I develop novel …
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Exploring the impact of narrative interactivity and visual styles on HPV vaccination communication outcomes
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-12-01
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Simulation of delamination in composite materials under static and fatigue loading by cohesive zone models
… simulations with a proper choice of the main model parameters. Moreover, a simplified mathematical model for the study of fatigue driven delamination is described. This model is particularly useful for investigating the performance of various formulations of interface elements that are …
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Combating Problematic Information Online with Dual Process Cognitive Affordances
… NudgeCred, I use cognitive heuristics from the MAIN model to design automatic affordances for better credibility assessment of news tweets from mainstream and misinformative sources. In TransparencyCue, I show the promise of value-centered automatic affordance design inside news articles …
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Population ecology of the dinoflagellate species Lingulodinium Polyedrum in southern California
… a HAB species, but functions as one of the main model organisms for dinoflagellate biology. As such, knowledge about this species also contributes significantly to the understanding of dinoflagellate population dynamics at a more general level. In an attempt to understand some of the complex …
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Ancient origins of the chordate forebrain: Conserved patterning of the anterior neuroectoderm in amphioxus
… of this key aspect of the chordate body plan remains obscure. In recent years, a conserved anterior gene regulatory network (aGRN) has been shown to pattern the larval anterior nervous system of several invertebrates, including the two non-chordate deuterostome phyla (echinoderms and …
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Constructions, Lower Bounds, and New Directions in Cryptography and Computational Complexity
… in public and private-key cryptography. Our main result answers in the negative the question of whether we can base Identity Based Encryption (IBE) on Trapdoor Permutations. Furthermore, we make progress towards the black-box separation of IBE from the Decisional Diffie-Hellman assumption. We …
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Excitations in superfluids of atoms and polaritons
… cases, i.e. equilibrium and non equilibrium, the main model corresponding to the semiclassical wave is the Gross-Pitaevskii equation (GPE), which includes certain mathematical adaptions depending on the physical context of the consideration and the nature of particles/quasiparticles, such as …
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Correlation between arrival and service patterns as a means of queue regulation
… is concerned with single server "correlated" models, defined to be such that either the service mechanism is somehow tailored to the arrival pattern, or vice versa. The greatest attention is given to a particular model in which the service time allotted to the nth arrival is λ Tn , where λ is …
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Dynamic pricing of wireless network resources in a competitive provider setting
… opens up a tremendous potential for new business models and is expected to significantly alter the way mobile and wireless services are provided. An important field of study is about understanding the implications on the competitive structure of the wireless market. With the technical barriers …
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Estimation of Cable Forces at the Ashton Bridge through Ambient Vibration Testing
… is important during construction and for bridge maintenance purposes because they are the main elements that determine the integrity of the structure. Superstructure and cable vibration data was collected on site after the final stage of cable tensioning. Finite element models of each cable were …
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Some combinational optimization problems on radio network communication and machine scheduling
… in the setting of random networks. Two different models are considered: one is random geometric networks, the main model used to study properties of sensor and ad-hoc networks, where ri points are randomly placed in a unit square and two points are connected by an edge if they are at most a …
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The effect of corporate governance characteristics on performance and capital structure: an empirical study of Saudi listed companies
… in Saudi listed companies. Specifically, three main topics are empirically examined: the relationship between board structure and performance, the relationship between ownership structure and performance and the determinants of capital structure with respect to corporate governance. Saudi Arabia …
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The Interaction of Policy, Credit Demand and Credit Supply in Banking System
… banks to make major changes within credit risk modeling, risk tolerance and capital management. Therefore, the objective of this study is to assess CECL’s treatment effect on bank’s lending strategy and risk profile management. My main model is a difference-in-difference model to study the …
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Tracing fifth-grade students' epistemologies in modeling through their participation in a model-based curriculum unit
… focuses on studying the practice of scientific modeling. There is a body of prior studies on students' epistemological understandings about models and modeling. None have examined how students' epistemologies about modeling changes over time and why they change the way they do. This research …
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