Dissertations / Theses on the topic 'Modelling, Markov chain'
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Samci, Karadeniz Rukiye. "Modelling share prices as a random walk on a Markov chain." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40129.
Full textGallagher, Raymond. "Uncertainty modelling in quantitative risk analysis." Thesis, University of Liverpool, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367676.
Full textPang, Wan-Kai. "Modelling ordinal categorical data : a Gibbs sampler approach." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323876.
Full textKawale, Sujay J. "Implication of Terrain Topology Modelling on Ground Vehicle Reliability." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/31241.
Full textMaster of Science
Bray, Isabelle Cella. "Modelling the prevalence of Down syndrome with applications of Markov chain Monte Carlo methods." Thesis, University of Plymouth, 1998. http://hdl.handle.net/10026.1/2408.
Full textLoza, Reyes Elisa. "Classification of phylogenetic data via Bayesian mixture modelling." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519916.
Full textGarzon, Rozo Betty Johanna. "Modelling operational risk using skew t-copulas and Bayesian inference." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/25751.
Full textBleki, Zolisa. "Efficient Bayesian analysis of spatial occupancy models." Master's thesis, University of Cape Town, 2020. http://hdl.handle.net/11427/32469.
Full textHenriques, Bruno M. "Hybrid galaxy evolution modelling : Monte Carlo Markov Chain parameter estimation in semi-analytic models of galaxy formation." Thesis, University of Sussex, 2010. http://sro.sussex.ac.uk/id/eprint/2334/.
Full textDao, Trong Nghia Electrical Engineering & Telecommunications Faculty of Engineering UNSW. "Modelling 802.11 networks for multimedia applications." Publisher:University of New South Wales. Electrical Engineering & Telecommunications, 2008. http://handle.unsw.edu.au/1959.4/41222.
Full textWanderley, Matos de Abreu Thiago. "Modeling and performance analysis of IEEE 802.11-based chain networks." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10030/document.
Full textThe IEEE 802.11 protocol, based on the CMSA/CA principles, is widely deployed in current communications, mostly due to its simplicity and low cost implementation. One common usage can be found in multi-hop wireless networks, where communications between nodes may involve relay nodes. A simple topology of these networks including one source and one destination is commonly known as a chain. In this thesis, a hierarchical modeling framework, composed of two levels, is presented in order to analyze the associated performance of such chains. The upper level models the chain topology and the lower level models each of its nodes. It estimates the performance of the chain in terms of the attained throughput and datagram losses, according to different patterns of channel degradation. In terms of precision, the model delivers, in general, accurate results. Furthermore, the time needed for solving it remains very small. The proposed model is then applied to chains with 2, 3 and 4 nodes, in the presence of occasional hidden nodes, finite buffers and non-perfect physical layer. Moreover, the use of the proposed model allows us to highlight some inherent properties to such networks. For instance, it is shown that a chain presents a performance maximum (with regards to the attained throughput) according to the system workload level, and this performance collapses with the increase of the workload. This represents a non-trivial behavior of wireless networks and cannot be easily identified. However, the model captures this non-trivial effect. Finally, some of the impacts in chains performance due to the IEEE 802.11 mechanisms are analyzed and detailed. The strong synchronization among nodes of a chain is depicted and how it represents a challenge for the modeling of such networks. The proposed model overcomes this obstacle and allows an easy evaluation of the chain performance
Zijerveld, Leonardus Jacobus Johannes. "Integrated modelling and Bayesian inference applied to population and disease dynamics in wildlife : M.bovis in badgers in Woodchester Park." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7733.
Full textAl-Saadony, Muhannad. "Bayesian stochastic differential equation modelling with application to finance." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1530.
Full textMuhammad, Sayyed Auwn. "Probabilistic Modelling of Domain and Gene Evolution." Doctoral thesis, KTH, Beräkningsvetenskap och beräkningsteknik (CST), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-191352.
Full textQC 20160904
Singh, Karandeep. "Statistical modelling and analysis of traffic : a dynamic approach." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/9421.
Full textLopez, lopera Andres Felipe. "Gaussian Process Modelling under Inequality Constraints." Thesis, Lyon, 2019. https://tel.archives-ouvertes.fr/tel-02863891.
Full textConditioning Gaussian processes (GPs) by inequality constraints gives more realistic models. This thesis focuses on the finite-dimensional approximation of GP models proposed by Maatouk (2015), which satisfies the constraints everywhere in the input space. Several contributions are provided. First, we study the use of Markov chain Monte Carlo methods for truncated multinormals. They result in efficient sampling for linear inequality constraints. Second, we explore the extension of the model, previously limited up tothree-dimensional spaces, to higher dimensions. The introduction of a noise effect allows us to go up to dimension five. We propose a sequential algorithm based on knot insertion, which concentrates the computational budget on the most active dimensions. We also explore the Delaunay triangulation as an alternative to tensorisation. Finally, we study the case of additive models in this context, theoretically and on problems involving hundreds of input variables. Third, we give theoretical results on inference under inequality constraints. The asymptotic consistency and normality of maximum likelihood estimators are established. The main methods throughout this manuscript are implemented in R language programming.They are applied to risk assessment problems in nuclear safety and coastal flooding, accounting for positivity and monotonicity constraints. As a by-product, we also show that the proposed GP approach provides an original framework for modelling Poisson processes with stochastic intensities
Dannenberg, Frits Gerrit Willem. "Modelling and verification for DNA nanotechnology." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:a0b5343b-dcee-44ff-964b-bdf5a6f8a819.
Full textSzymczak, Marcin. "Programming language semantics as a foundation for Bayesian inference." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/28993.
Full textShahtahmassebi, Golnaz. "Bayesian modelling of ultra high-frequency financial data." Thesis, University of Plymouth, 2011. http://hdl.handle.net/10026.1/894.
Full textSha, Sha. "Performance Modelling and Analysis of Handover and Call Admission Control Algorithm for Next Generation Wireless Networks." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5509.
Full textReynolds, Toby J. "Bayesian modelling of integrated data and its application to seabird populations." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/1635.
Full textVierheller, Janine. "Modelling excitation coupling in ventricular cardiac myocytes." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19158.
Full textExcitation contraction coupling (ECC) is of central importance to enable the contraction of the cardiac myocyte via calcium in ux. The electrical signal of a neighbouring cell causes the membrane depolarization of the sarcolemma and L-type Ca2+ channels (LCCs) open. The amplifcation process is initiated. This process is known as calcium-induced calcium release (CICR). The calcium in ux through the LCCs activates the ryanodine receptors (RyRs) of the sarcoplasmic reticulum (SR). The Ca2+ release of the SR accumulates calcium in the cytoplasm. For many decades models for these processes were developed. However, previous models have not combined the spatially resolved concentration dynamics of the dyadic cleft including the stochastic simulation of individual calcium channels and the whole cell calcium dynamics with a whole cardiac myocyte electrophysiology model. In this study, we developed a novel approach to resolve concentration gradients from single channel to whole cell level by using quasistatic approximation and finite element method for integrating partial differential equations. We ran a series of simulations with different RyR Markov chain models, different parameters for the SR components, sodium-calcium exchanger conditions, and included mitochondria to approximate physiological behaviour of a rabbit ventricular cardiac myocyte. The new multi-scale simulation tool which we developed makes use of high performance computing to reveal detailed information about the distribution, regulation, and importance of components involved in ECC. This tool will find application in investigation of heart contraction and heart failure.
Roy, Shubhabrata. "A Complete Framework for Modelling Workload Volatility of VoD System - a Perspective to Probabilistic Management." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2014. http://tel.archives-ouvertes.fr/tel-01061418.
Full textFilatenkova, Milana S. "Quantitative tool for in vivo analysis of DNA-binding proteins using High Resolution Sequencing Data." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/20414.
Full textGaletti, Erica. "Seismic interferometry and non-linear tomography." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10506.
Full textTrabelsi, Brahim. "Simulation numérique de l’écoulement et mélange granulaires par des éléments discrets ellipsoïdaux." Phd thesis, Toulouse, INPT, 2013. http://oatao.univ-toulouse.fr/9300/1/trabelsi.pdf.
Full textWidén, Joakim. "System Studies and Simulations of Distributed Photovoltaics in Sweden." Doctoral thesis, Uppsala universitet, Fasta tillståndets fysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-132907.
Full textFelaktigt tryckt som Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 711
Dorff, Rebecca. "Modelling Infertility with Markov Chains." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/4070.
Full textO'Leary, Rebecca A. "Informed statistical modelling of habitat suitability for rare and threatened species." Queensland University of Technology, 2008. http://eprints.qut.edu.au/17779/.
Full textDixon, William J., and bill dixon@dse vic gov au. "Uncertainty in Aquatic Toxicological Exposure-Effect Models: the Toxicity of 2,4-Dichlorophenoxyacetic Acid and 4-Chlorophenol to Daphnia carinata." RMIT University. Biotechnology and Environmental Biology, 2005. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070119.163720.
Full textClark, Edward Blair. "A framework for modelling stochastic optimisation algorithms with Markov chains." Thesis, University of York, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.495863.
Full textErlwein, Christina. "Applications of hidden Markov models in financial modelling." Thesis, Brunel University, 2008. http://bura.brunel.ac.uk/handle/2438/7898.
Full textGroen, Maria Margaretha de. "Modelling interception and transpiration at monthly time steps : introducing daily variability through Markov chains /." Lisse : Swets & Zeitlinger, 2002. http://www.loc.gov/catdir/enhancements/fy0647/2003275124-d.html.
Full text"Dissertation submitted in fulfillment of the requirements of the Board for Doctorates of Delft University of Technology and of the Academic Board of the International Institute for Infrastructural, Hydraulic and Environmental Engineering for the Degree of Doctor to be defended in public on Monday, 29 April 2002 at 13:30 hours in Delft, The Netherlands." Includes bibliographical references (p. [191]-199).
Bondesson, Carl. "Modelling of Safety Concepts for Autonomous Vehicles using Semi-Markov Models." Thesis, Uppsala universitet, Signaler och System, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353060.
Full textGreening, Philip. "The influence of market structure, collaboration and price competition on supply network disruptions in open and closed markets." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8473.
Full textVoskoglou, Michael Gr. "Mathematical modelling in classroom: The importance of validation of the constructed model." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-83164.
Full textZingmark, Per-Henrik. "Models for Ordered Categorical Pharmacodynamic Data." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis: Univ.-bibl. [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6125.
Full textDobay, Eduardo Sangiorgio. "Complexidade e tomada de decisão." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-22012015-135228/.
Full textIn this work we developed a simple probabilistic modeling framework that could describe the process of decision making in human agents that are presented with the task of predicting elements of a random sequence generated by a Markov chain with memory L. Such framework arised from a Bayesian approach in which the agent infers a probability distribution from a series of observations on the sequence and on its own answers, and considers that the agent\'s memory has length K. As a result of the Bayesian approach, the agent adopts an optimal strategy that consists in perseveration of the most likely alternative given the history of the last few trials; because of that and of experimental evidence that humans tend, in such kinds of problems, to adopt suboptimal strategies such as probability matching, variations on that model were developed in an attempt to have a closer description of the behavior adopted by humans. In that sense, the `shift\' (possible action taken by the agent on its response) and `reward\' (possible result of the action) variables were adopted in the formulation of the model, and parameters inspired by models of dopaminergic action were added to allow deviation from the optimal strategy that resulted from the Bayesian approach. The models developed in that framework were computationally simulated for many values of the parameters, including the agent\'s and the Markov chain\'s memory lengths K and L respectively. Through correlation analysis these results were compared to experimental data, from a research group from the Biomedical Science Institute at USP, regarding decision making tasks that involved people of various ages (3 to 73 years old) and Markov chains of orders 0, 1 and 2. In this comparison it was concluded that the differences between age groups in the experiment can be explained in our modeling through variation of the agent\'s memory length K children up to 5 years old exhibited a limitation of K = 1, and those up to 12 years old were limited to K = 2 and through variation of a learning reinforcement parameter depending on the group and the decision situation to which the candidates were exposed, the fitted value for that parameter ranged from 10% below to 30% above its original value according to the Bayesian approach.
Razetti, Agustina. "Modélisation et caractérisation de la croissance des axones à partir de données in vivo." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4016/document.
Full textHow the brain wires up during development remains an open question in the scientific community across disciplines. Fruitful efforts have been made to elucidate the mechanisms of axonal growth, such as pathfinding and guiding molecules. However, recent evidence suggests other actors to be involved in neuron growth in vivo. Notably, axons develop in populations and embedded in mechanically constrained environments. Thus, to fully understand this dynamic process, one must take into account collective mechanisms and mechanical interactions within the axonal populations. However, techniques to directly measure this from living brains are today lacking or heavy to implement. This thesis emerges from a multidisciplinary collaboration, to shed light on axonal development in vivo and how adult complex axonal morphologies are attained. Our work is inspired and validated from images of single wild type and mutated Drosophila y axons, which we have segmented and normalized. We first proposed a mathematical framework for the morphological study and classification of axonal groups. From this analysis we hypothesized that axon growth derives from a stochastic process, and that the variability and complexity of axonal trees result from its intrinsic nature, as well as from elongation strategies developed to overcome the mechanical constraints of the developing brain. We designed a mathematical model of single axon growth based on Gaussian Markov Chains with two parameters, accounting for axon rigidity and attraction to the target field. We estimated the model parameters from data, and simulated the growing axons embedded in spatially constraint populations to test our hypothesis. We dealt with themes from applied mathematics as well as from biology, and unveiled unexplored effects of collective growth on axonal development in vivo
Khayyat, Khalid M. Jamil. "Performance modelling and QoS support for wireless Ad Hoc networks." Thesis, 2011. http://hdl.handle.net/1828/3632.
Full textGraduate
Thyer, Mark Andrew. "Modelling Long-Term Persistence in Hydrological Time Series." 2001. http://hdl.handle.net/1959.13/24891.
Full textPhD Doctorate
PUTRA, MARWAN SURACHMAN, and Marwan Surachman Putra. "MODELLING LAND USE AND LAND COVER CHANGE BY INTEGRATING CELLULAR AUTOMATA AND MARKOV CHAIN- A CASE STUDY IN CILIWUNG WATERSHED, INDONESIA." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ee26d6.
Full text國立臺北大學
城市治理英語碩士學位學程
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The steep increase in the urban population in Jakarta city has exerted heavy pressure on the land resources periphery since the last few decades, especially in the Ciliwung watershed that significantly contributes to the environmental issue in Jakarta. Land use simulations are of particular interest to rural-urban, regional planners, and the government owing to the future impacts of actions and policies are decisive in order for a more sustainable future. The purposes of this thesis are to explore drivers and components and to simulate future land use and land cover change. Remote Sensing data were used to generate classification maps for 1997, 2007, and 2018 classified as forest, waterbody, vegetation, and built-up area, respectively. Multicriteria decision-making and fuzzy parameter standardisation approaches were applied to produce transition suitability image. Cramer's V method was used to determine the significant contributor and driver of land use and land cover change, and the results showed that transportation and land price are two of the most influential factors. Markov chain and cellular automata were employed to generate simulated maps of the Ciliwung watershed in 2028 and 2038. The model was validated against actual land use map in 2018 and the Kappa value is 0.6907, indicating acceptable simulation accuracy. Based on the simulation, it is found that the area of the forest might decrease from 4.987 ha to 4.916 ha. Moreover, the vegetation cover might decrease from 10.666 ha to 8.560 ha, and water body might slightly decrease from 84 ha to 81 ha. Conversely, the built-up area might increase significantly from 22.873 ha to 25.052 ha. In the end, this thesis indicates that it is essential to simulate land use and land cover to help local authorities and government centres to give better understand a complex land-use system and to develop an improved land use management strategy considering the possible development trend in the future.
Seyed, Momen Kaveh. "Identifying Nursing Activities to Estimate the Risk of Cross-contamination." Thesis, 2012. http://hdl.handle.net/1807/34914.
Full textAbhinav, S. "Stochastic Modelling of Vehicle-Structure Interactions : Dynamic State And Parameter Estimation, And Global Response Sensitivity Analysis." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2736.
Full textKvanta, Hugo. "Modelling Safety of Autonomous Driving with Semi-Markov Processes." Thesis, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444617.
Full textDeus, Raquel Margarida Viana Faria de. "GIS-BASED MEASUREMENT, ANALYSIS AND MODELLING OF LAND-USE AND LAND-COVER CHANGE IN COASTAL AREAS. THE CASE OF THE ALGARVE, PORTUGAL." Doctoral thesis, 2015. http://hdl.handle.net/10362/16262.
Full textŠejnová, Gabriela. "Vliv stochastického chování iontových kanálů na přenos signálu a informace na excitabilních neuronálních membránách." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-356195.
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