Dissertationen zum Thema „Differentiable model“
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Cowan, John D. „A billiard model for a gas of particles with rotation /“. Thesis, Connect to Dissertations & Theses @ Tufts University, 2004.
Den vollen Inhalt der Quelle findenAdviser: Boris Hasselblatt. Submitted to the Dept. of Mathematics. Includes bibliographical references (leaves 61-62). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
Collins, Jack T. „Simulation to reality and back: A robot's guide to crossing the reality gap“. Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/230537/1/Jack_Collins_Thesis.pdf.
Der volle Inhalt der QuelleOgden, Richard R. „Differential rotation and the geodynamo“. Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264156.
Der volle Inhalt der QuelleNagloo, Joel Chris Ronnie. „Model theory, algebra and differential equations“. Thesis, University of Leeds, 2014. http://etheses.whiterose.ac.uk/6813/.
Der volle Inhalt der QuelleBjørneng, Bjørn. „How to increase the understanding of differentials by using the Casio-calculator model 9860 G I/II to solve differential equations“. Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-79468.
Der volle Inhalt der QuelleKriwet, Gregor [Verfasser]. „Methods for Model Calibration and Design of Optimal Experiments for Partial Differential Equation Models / Gregor Kriwet“. Aachen : Shaker, 2016. http://d-nb.info/1118258258/34.
Der volle Inhalt der QuelleBaldi, Guillaume. „Contributions à la modélisation procédurale de structures cellulaires stochastoques 2D et à leur génération par l'exemple“. Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAD001.
Der volle Inhalt der QuelleThe creation of procedural materials and textures requires considerable expertise, and is time-consuming, tedious and costly. We are therefore looking to develop tools for the automatic generation of procedural textures and materials from input exemplars provided in the form of images: This is known as inverse procedural modeling.In this thesis, we propose a procedural model called Cellular Point Process Texture Basis Function (C-PPTBF) for representing 2D stochastic cellular structures, involving functions that are differentiable with respect to most of their parameters, making it possible to estimate these parameters from examples without resorting entirely to deep neural networks. We have set up a processing pipeline to estimate the parameters of our model from structural examples provided in the form of binary images, combining an estimation performed using a convolutional neural network trained on images produced with our C-PPTBF model and an estimation phase using gradient descent directly on the parameters of the procedural model
Francia, Giulio. „Differential display application to a Melanoma model“. Thesis, King's College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300029.
Der volle Inhalt der QuelleHanig, Marco. „Differential gaming models of oligopoly“. Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/14869.
Der volle Inhalt der QuelleTitle as it appeared in the Massachusetts Institute of Technology Graduate List, June 1987: Differential game models of oligopoly.
Bibliography: leaves 242-249.
by Marco Hanig.
Ph.D.
Cruz, Jorge Carlos Ferreira Rodrigues da. „Constraint reasoning for differential models“. Doctoral thesis, FCT - UNL, 2003. http://hdl.handle.net/10362/1061.
Der volle Inhalt der QuelleBailey, Fred Washington. „Models for differential age acceleration“. Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-12052009-020133/.
Der volle Inhalt der QuelleJUNQUEIRA, DANIEL HAANWINCKEL. „A COMPENSATING DIFFERENTIALS MODEL OF INFORMAL LABOR MARKETS“. PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=25494@1.
Der volle Inhalt der QuelleCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
FUNDAÇÃO DE APOIO À PESQUISA DO ESTADO DO RIO DE JANEIRO
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
Este trabalho desenvolve um modelo de busca por emprego com trabalhadores e firmas heterogêneos, salário mínimo e benefícios trabalhistas. Em equilíbrio, as firmas informais são menores, menos produtivas e empregam menos trabalhadores qualificados devido a um efeito de seleção. Trabalhadores informais geralmente recebem salários maiores para compensar a falta de benefícios trabalhistas, mas uma simples comparação de salários médios entre setores mostra um prêmio salarial para a formalidade devido a um efeito de composição. Além disto, o salário mínimo pode quebrar a relação de diferenciais compensatórios, de forma que haja um prêmio de formalidade para trabalhadores pouco qualificados mesmo após controlar para produtividade individual. O modelo é calibrado usando dados do Brasil e utilizado para explicar a evolução do mercado de trabalho neste país de 2003 até 2012. Os resultados sugerem que o aumento da escolaridade média foi o fator mais importante por trás da reversão da tendência de informalidade no Brasil, que ainda é um fato não plenamente explicado na literatura acadêmica. Também mostra-se que, no modelo calibrado, impostos progressivos sobre folha salarial poderiam levar a uma redução tanto do desemprego quanto da informalidade sem comprometer as receitas do governo.
This work develops a search and matching model of informality with heterogeneous workers and firms, minimum wages, and mandated benefits. In equilibrium, informal firms are smaller, less productive and employ fewer skilled workers as a result of self-selection. Informal workers are generally compensated for the lack of mandated benefits by receiving higher wages, but a simple comparison of average earnings between sectors shows a formality wage premium because of compositional effects. In addition, a binding minimum wage can break the equalizing differentials relation, so that there might be a formality wage premium among low wage workers even after controlling for individual productivity. The model is calibrated using Brazilian data and used to explain the evolution of labor market outcomes in that country from 2003 to 2012. The results suggest that rising schooling was the most important factor behind the reversal of the informality trend in Brazil, which remains a puzzle in the current literature. It is also shown that, for the calibrated model, a progressive payroll tax would lead to a decrease in both unemployment and informality without compromising tax revenues.
Fernandes, Lourenço Affonso Marcelo. „A decision support model for differential sticking avoidance“. Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/700.
Der volle Inhalt der QuelleFontana, Gaia. „Traffic waves and delay differential equations“. Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21211/.
Der volle Inhalt der QuelleYung, Tamara. „Traffic Modelling Using Parabolic Differential Equations“. Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-102745.
Der volle Inhalt der QuelleZeris, E. A. „Investigations of certain implicit finite difference schemes for integration of the long wave equations“. Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381538.
Der volle Inhalt der QuelleAslanyan, Vahagn. „Ax-Schanuel type inequalities in differentially closed fields“. Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:bced8c2d-22df-4a21-9a1f-5e4204b6c85d.
Der volle Inhalt der QuelleBaisden, Andrew Carson. „Generalized Terminal Modeling of Electro-Magnetic Interference“. Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/29810.
Der volle Inhalt der QuellePh. D.
Sun, Bingyao. „EMI Terminal Behavioral Modeling of SiC-based Power Converters“. Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/78154.
Der volle Inhalt der QuelleMaster of Science
Björnberg, Jakob Erik. „Graphical representations of Ising and Potts models : Stochastic geometry of the quantum Ising model and the space-time Potts model“. Doctoral thesis, KTH, Matematik (Inst.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11267.
Der volle Inhalt der Quelle![](http://upload.wikimedia.org/math/a/b/8/ab820da891078a8245d7f4f3252aee4f.png)
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HTML clipboard Statistisk fysik syftar till att förklara ett materials makroskopiska egenskaper i termer av dess mikroskopiska struktur. En särskilt intressant egenskap är är fenomenet fasövergång, det vill säga en plötslig förändring i de makroskopiska egenskaperna när externa förutsättningar varieras. Två modeller är särskilt intressanta för en matematiker, nämligen Ising-modellen av en magnet och perkolationsmodellen av ett poröst material. Dessa två modeller sammanförs av den så-kallade fk-modellen, en slumpgrafsmodell som först studerades av Fortuin och Kasteleyn på 1970-talet. fk-modellen har sedermera visat sig vara extremt användbar för att bevisa viktiga resultat om Ising-modellen och liknande modeller. I den här avhandlingen studeras den motsvarande grafiska strukturen hos två näraliggande modeller. Den första av dessa är den kvantteoretiska Isingmodellen med transverst fält, vilken är en utveckling av den klassiska Isingmodellen och först studerades av Lieb, Schultz och Mattis på 1960-talet. Den andra modellen är rumtid-perkolation, som är nära besläktad med kontaktmodellen av infektionsspridning. I Kapitel 2 definieras rumtid-fk-modellen, och flera probabilistiska verktyg utforskas för att studera dess grundläggande egenskaper. Vi möter rumtid-Potts-modellen, som uppenbarar sig som en naturlig generalisering av den kvantteoretiska Ising-modellen. De viktigaste egenskaperna hos fasövergången i dessa modeller behandlas i detta kapitel, exempelvis det faktum att det i fk-modellen finns högst en obegränsad komponent, samt den undre gräns för det kritiska värdet som detta innebär. I Kapitel 3 utvecklas en alternativ grafisk framställning av den kvantteoretiska Ising-modellen, den så-kallade slumpparitetsframställningen. Denna är baserad på slumpflödesframställningen av den klassiska Ising-modellen, och är ett verktyg som låter oss studera fasövergången och gränsbeteendet mycket närmare. Huvudsyftet med detta kapitel är att bevisa att fasövergången är skarp—en central egenskap—samt att fastslå olikheter för vissa kritiska exponenter. Metoden består i att använda slumpparitetsframställningen för att härleda vissa differentialolikheter, vilka sedan kan integreras för att lägga fast att gränsen är skarp. I Kapitel 4 utforskas några konsekvenser, samt möjliga vidareutvecklingar, av resultaten i de tidigare kapitlen. Exempelvis bestäms det kritiska värdet hos den kvantteoretiska Ising-modellen på
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QC 20100705
Bruynooghe, Daniel. „Differential cumulants, hierarchical models and monomial ideals“. Thesis, London School of Economics and Political Science (University of London), 2011. http://etheses.lse.ac.uk/441/.
Der volle Inhalt der QuelleVasu, Aishwarya. „MODEL-BASED CONTROL OF DIFFERENTIALLY DRIVEN TWO-WHEELED MOBILE ROBOT“. OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/360.
Der volle Inhalt der QuelleSolanki, Nikesh. „Uniform companions for expansions of large differential fields“. Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/uniform-companions-for-expansions-of-large-differential-fields(a565a0d0-24b5-40a6-a414-5ead1631bc8d).html.
Der volle Inhalt der QuelleLiu, Yang, und 劉洋. „Optimization and differential geometry for geometric modeling“. Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40988077.
Der volle Inhalt der QuelleZararsiz, Zarife. „On an epidemic model given by a stochastic differential equation“. Thesis, Växjö University, School of Mathematics and Systems Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-5747.
Der volle Inhalt der QuelleCinar, Selahittin. „Analysis of a Partial Differential Equation Model of Surface Electromigration“. TopSCHOLAR®, 2014. https://digitalcommons.wku.edu/theses/1368.
Der volle Inhalt der QuelleDray, Alyssa W. „A Multistage Incidence Estimation Model for Diseases with Differential Mortality“. Scholarship @ Claremont, 2010. https://scholarship.claremont.edu/hmc_theses/21.
Der volle Inhalt der QuelleBirch, S. „The demand for health : Extensions to the human capital model“. Thesis, University of York, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378059.
Der volle Inhalt der QuelleCartwright, Madeleine Clare. „Collective coordinates approach for travelling waves in stochastic partial differential equations“. Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25942.
Der volle Inhalt der QuelleSchelp, Richard Charles. „The standard model and beyond in noncommutative geometry /“. Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
Der volle Inhalt der QuelleYereniuk, Michael A. „Global Approximations of Agent-Based Model State Changes“. Digital WPI, 2020. https://digitalcommons.wpi.edu/etd-dissertations/614.
Der volle Inhalt der QuelleGuo, Xu. „Fractional differential equations for modelling financial processes with jumps“. HKBU Institutional Repository, 2015. https://repository.hkbu.edu.hk/etd_oa/192.
Der volle Inhalt der QuelleWhitaker, Gavin Andrew. „Bayesian inference for stochastic differential mixed-effects models“. Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3398.
Der volle Inhalt der QuelleMedlock, Jan P. „Integro-differential-equation models in ecology and epidemiology /“. Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6790.
Der volle Inhalt der QuelleSinclair, Peter. „Differential outcomes of various models of work experience“. Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 1995. https://ro.ecu.edu.au/theses/1159.
Der volle Inhalt der QuelleChurch, Kevin. „Applications of Impulsive Differential Equations to the Control of Malaria Outbreaks and Introduction to Impulse Extension Equations: a General Framework to Study the Validity of Ordinary Differential Equation Models with Discontinuities in State“. Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31874.
Der volle Inhalt der QuelleCsémi, András. „Nápravový samosvorný diferenciál“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433532.
Der volle Inhalt der QuelleVijapurapu, Vamsi Krishna. „Differential relay model development and validation using real time digital simulator“. Master's thesis, Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-09222008-143941.
Der volle Inhalt der QuelleRomijn, Reinout Carel [Verfasser]. „Empirical Model Reduction of Differential-Algebraic Equation Systems / Reinout Carel Romijn“. Aachen : Shaker, 2016. http://d-nb.info/1084536692/34.
Der volle Inhalt der QuelleMa, Zhiwen. „A combined differential and integral model for high temperature fuel cells“. Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/15831.
Der volle Inhalt der QuelleOlien, Leonard. „Analysis of a delay differential equation model of a neural network“. Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23927.
Der volle Inhalt der QuellePereira, Lo Bernardino. „Parameter estimation for a stochastic differential equation model of polymer rheology“. Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441346.
Der volle Inhalt der QuelleRomijn, Reinout [Verfasser]. „Empirical Model Reduction of Differential-Algebraic Equation Systems / Reinout Carel Romijn“. Aachen : Shaker, 2016. http://nbn-resolving.de/urn:nbn:de:101:1-201602282397.
Der volle Inhalt der QuelleCarter, Nathan T. „APPLICATIONS OF DIFFERENTIAL FUNCTIONING METHODS TO THE GENERALIZED GRADED UNFOLDING MODEL“. Bowling Green State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1290885927.
Der volle Inhalt der QuellePade, Jonas. „Analysis and waveform relaxation for a differential-algebraic electrical circuit model“. Doctoral thesis, Humboldt-Universität zu Berlin, 2021. http://dx.doi.org/10.18452/23044.
Der volle Inhalt der QuelleThe main topics of this thesis are firstly a thorough analysis of nonlinear differential-algebraic equations (DAEs) of index 2 which arise from the modified nodal analysis (MNA) for electrical circuits and secondly the derivation of convergence criteria for waveform relaxation (WR) methods on coupled problems. In both topics, a particular focus is put on the relations between a circuit's topology and the mathematical properties of the corresponding DAE. The analysis encompasses a detailed description of a normal form for circuit DAEs of index 2 and consequences for the sensitivity of the circuit with respect to its input source terms. More precisely, we provide bounds which describe how strongly changes in the input sources of the circuit affect its behaviour. Crucial constants in these bounds are determined in terms of the topological position of the input sources in the circuit. The increasingly complex electrical circuits in technological devices often call for coupled systems modelling. Allowing for each subsystem to be solved by dedicated numerical solvers and time scales, WR is an adequate method in this setting. It is well-known that while WR converges on ordinary differential equations if a Lipschitz condition is satisfied, an additional convergence criterion is required to guarantee convergence on DAEs. We present general convergence criteria for WR on higher index DAEs. Furthermore, based on our results of the analysis part, we derive topological convergence criteria for coupled circuit/circuit problems and field/circuit problems. Examples illustrate how to practically check if the criteria are satisfied. If a sufficient convergence criterion holds, we specify at which rate of convergence the Jacobi and Gauss-Seidel WR methods converge. Simulations of simple benchmark systems illustrate the drastically different convergence behaviour of WR depending on whether or not the circuit topological convergence conditions are satisfied.
Cheng, Jie. „An Ordinary Differential Equation Based Model For Clustering And Vector Quantization“. Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1878994541&sid=3&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Der volle Inhalt der Quelle"Department of Electrical and Computer Engineering." Keywords: Clustering, Ordinary differential equations, Real time, Vector quantization. Includes bibliographical references (p. 80-83). Also available online.
Comer, Janet Mary 1944. „DEVELOPMENT OF A SEMANTIC DIFFERENTIAL PROFILE FOR THE ANGER THERAPY MODEL“. Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275548.
Der volle Inhalt der QuelleSwatzel, James Paul. „A partial differential equation to model the Tacoma Narrows Bridge failure“. CSUSB ScholarWorks, 2004. https://scholarworks.lib.csusb.edu/etd-project/2631.
Der volle Inhalt der QuelleZhou, Chao. „Model Uncertainty in Finance and Second Order Backward Stochastic Differential Equations“. Palaiseau, Ecole polytechnique, 2012. https://pastel.hal.science/docs/00/77/14/37/PDF/Thesis_ZHOU_Chao_Pastel.pdfcc.
Der volle Inhalt der QuelleThe main objective of this PhD thesis is to study some financial mathematics problems in an incomplete market with model uncertainty. In recent years, the theory of second order backward stochastic differential equations (2BSDEs for short) has been developed by Soner, Touzi and Zhang on this topic. In this thesis, we adopt their point of view. This thesis contains of four key parts related to 2BSDEs. In the first part, we generalize the 2BSDEs theory initially introduced in the case of Lipschitz continuous generators to quadratic growth generators. This new class of 2BSDEs will then allow us to consider the robust utility maximization problem in non-dominated models. In the second part, we study this problem for exponential utility, power utility and logarithmic utility. In each case, we give a characterization of the value function and an optimal investment strategy via the solution to a 2BSDE. In the third part, we provide an existence and uniqueness result for second order reflected BSDEs with lower obstacles and Lipschitz generators, and then we apply this result to study the problem of American contingent claims pricing with uncertain volatility. In the fourth part, we define a notion of 2BSDEs with jumps, for which we prove the existence and uniqueness of solutions in appropriate spaces. We can interpret these equations as standard BSDEs with jumps, under both volatility and jump measure uncertainty. As an application of these results, we shall study a robust exponential utility maximization problem under model uncertainty, where the uncertainty affects both the volatility process and the jump measure
Zigic, Jovan. „Optimization Methods for Dynamic Mode Decomposition of Nonlinear Partial Differential Equations“. Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/103862.
Der volle Inhalt der QuelleMaster of Science
The Navier-Stokes (NS) equations are the primary mathematical model for understanding the behavior of fluids. The existence and smoothness of the NS equations is considered to be one of the most important open problems in mathematics, and challenges in their numerical simulation is a barrier to understanding the physical phenomenon of turbulence. Due to the difficulty of studying this problem directly, simpler problems in the form of nonlinear partial differential equations (PDEs) that exhibit similar properties to the NS equations are studied as preliminary steps towards building a wider understanding of the field. Reduced-order models have long been used to understand the behavior of nonlinear partial differential equations. Naturally, reduced-order modeling techniques come at the price of either computational accuracy or computation time. Optimization techniques are studied to improve either or both of these objectives and decrease the total computational cost of the problem. This thesis focuses on the dynamic mode decomposition (DMD) applied to nonlinear PDEs with periodic boundary conditions. It provides one study of an existing optimization framework for the DMD method known as the Optimized DMD and provides another study of a newly proposed optimization framework for the DMD method called the Split DMD.