Relevant bibliographies by topics / Geometrical Probability / Dissertations / Theses
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Dissertations / Theses on the topic 'Geometrical Probability'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Avram, Florin, and Dimitris J. Bertsimas. "The Minimum Spanning Tree Constant in Geometrical Probability and Under the Independent Model; A Unified Approach." Massachusetts Institute of Technology, Operations Research Center, 1990. http://hdl.handle.net/1721.1/5189.

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Given n uniformly and independently points in the d dimensional cube of unit volume, it is well established that the length of the minimum spanning tree on these n points is asymptotic to /3MsT(d)n(d-l)/d,where the constant PMST(d) depends only on the dimension d. It has been a major open problem to determine the constant 3MST(d). In this paper we obtain an exact expression of the constant MST(d) as a series expansion. Truncating the expansion after a finite number of terms yields a sequence of lower bounds; the first 3 terms give a lower bound which is already very close to the empirically es
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2

Cecchi, Bernales Paulina Alejandra. "Invariant measures in symbolic dynamics : a topological, combinatorial and geometrical approach." Thesis, Sorbonne Paris Cité, 2019. https://theses.md.univ-paris-diderot.fr/CECCHI-BERNALES_Paulina_2_complete_20190626.pdf.

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Dans ce travail nous étudions quelques propriétés des systèmes symboliques, avec un accent particulier mis sur le rôle joué par les mesures invariantes de tels systèmes. Nous nous attachons à l'étude des mesures invariantes d'un point de vue topologique, combinatoire et géométrique. Du point de vue topologique, nous nous concentrons sur le problème de l'équivalence orbitale et l'équivalence orbitale forte entre des systèmes dynamiques donnés par des actions minimales de Z, par l'étude d'un invariant algébrique, à savoir, le groupe de dimension dynamique. Notre travail donne une description du
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3

Silva, AntÃnio Klinger GuedÃlha da. "Probabilidade geomÃtrica: generalizaÃÃes do problema da agulha de Buffon e aplicaÃÃes." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11715.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>O presente trabalho tem por finalidades: demonstrar o problema da agulha de Buffon, fazer uma pequena generalizaÃÃo do resultado obtido e apresentar aplicaÃÃes baseadas nos fundamentos do referido problema. O problema da agulha de Buffon està inserido no estudo da Teoria das Probabilidades, particularmente na subÃrea de probabilidade geomÃtrica. Para chegarmos à soluÃÃo desta questÃo, alÃm dos conceitos e propriedades atinentes à Teoria das probabilidades à necessÃrio o conhecimento de noÃÃes bÃsicas do cÃlculo integral. Nos capÃtu
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4

Presles, Benoît. "Caractérisation géométrique et morphométrique 3-D par analyse d'image 2-D de distributions dynamiques de particules convexes anisotropes. Application aux processus de cristallisation." Thesis, Saint-Etienne, EMSE, 2011. http://www.theses.fr/2011EMSE0632/document.

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La cristallisation en solution est un procédé largement utilisé dans l'industrie comme opération de séparation et de purification qui a pour but de produire des solides avec des propriétés spécifiques. Les propriétés concernant la taille et la forme ont un impact considérable sur la qualité finale des produits. Il est donc primordial de pouvoir déterminer la distribution granulométrique (DG) des cristaux en formation. En utilisant une caméra in situ, il est possible de visualiser en temps réel les projections 2D des particules 3D présentes dans la suspension. La projection d'un objet 3D sur un
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5

Pereira, Carlos André Bogéa. "Alguns tópicos em probabilidade geométrica." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306582.

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Orientador: Simão Nicolau Stelmastchuk<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Científica<br>Made available in DSpace on 2018-08-17T21:15:56Z (GMT). No. of bitstreams: 1 Pereira_CarlosAndreBogea_M.pdf: 2160729 bytes, checksum: f46cc601d486b802f179e9fd8befb099 (MD5) Previous issue date: 2011<br>Resumo: Ao nosso entender, a Probabilidade Geométrica quantifica a probabilidade de ocorrer alguns fenômenos associados a entes geométricos. O primeiro estudo, talvez o mais famoso, a ser realizado neste sentido é o p
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Lindsay, Larry J. "Quantization Dimension for Probability Definitions." Thesis, University of North Texas, 2001. https://digital.library.unt.edu/ark:/67531/metadc3008/.

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The term quantization refers to the process of estimating a given probability by a discrete probability supported on a finite set. The quantization dimension Dr of a probability is related to the asymptotic rate at which the expected distance (raised to the rth power) to the support of the quantized version of the probability goes to zero as the size of the support is allowed to go to infinity. This assumes that the quantized versions are in some sense ``optimal'' in that the expected distances have been minimized. In this dissertation we give a short history of quantization as well as some ba
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Charmoy, Philippe H. A. "On the geometric and analytic properties of some random fractals." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:a9bbee2c-9958-464a-ac9e-bb8c42e107ea.

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The heat content of a domain D of &Ropf;<sup>d</sup> is defined as</sp> < p >E(s) = &int;<sub>D</sub> u(s,x)dx, where u is the solution to the heat equation with zero initial condition and unit Dirichlet boundary condition. This thesis studies the behaviour of E(s) for small s with a particular emphasis on the case where $D$ is a planar domain whose boundary is a random Koch curve. When &part;D is spatially homogeneous, we show that we can recover the upper and lower Minkowski dimensions of &part;D from E(s). Furthermore, in some cases where the Minkowski dimension does exist, finer fluctuatio
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8

Ma, Kin-Keung. "Infinite prefix codes for geometric distributions /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?COMP%202004%20MA.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 74-76). Also available in electronic version. Access restricted to campus users.
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9

Saive, Yannick. "DirCNN: Rotation Invariant Geometric Deep Learning." Thesis, KTH, Matematisk statistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-252573.

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Recently geometric deep learning introduced a new way for machine learning algorithms to tackle point cloud data in its raw form. Pioneers like PointNet and many architectures building on top of its success realize the importance of invariance to initial data transformations. These include shifting, scaling and rotating the point cloud in 3D space. Similarly to our desire for image classifying machine learning models to classify an upside down dog as a dog, we wish geometric deep learning models to succeed on transformed data. As such, many models employ an initial data transform in their mode
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10

Ho, Pak-kei. "Parametric and non-parametric inference for Geometric Process." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31483859.

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Ho, Pak-kei, and 何柏基. "Parametric and non-parametric inference for Geometric Process." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B31483859.

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12

Kalyankuppam, Selvaraj Jothybasu. "Modelling the effect of geometric uncertainties, clonogen distribution and IMRT interplay effect on tumour control probability." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/17533/.

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Geometric uncertainties are inevitable in radiotherapy. These uncertainties in tumour position are classified as systematic (Ε) and random (δ) errors. To account for these uncertainties, a margin is added to the clinical target volume (CTV) to create the planning target volume (PTV). The size of the PTV is critical for obtaining an optimal treatment plan. Dose-based (i.e., physical) margin recipes as a function of systematic and random errors based on coverage probability of a certain level of dose (90% or 95% of the prescription dose) have been published and widely used. However, with a TCP-b
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13

Brodd, Tobias, and Adrian Djerf. "Monte Carlo Simulations of Stock Prices : Modelling the probability of future stock returns." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229752.

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The financial market is a stochastic and complex system that is challenging to model. It is crucial for investors to be able to model the probability of possible outcomes of financial investments and financing decisions in order to produce fruitful and productive investments. This study investigates how Monte Carlo simulations of random walks can be used to model the probability of future stock returns and how the simulations can be improved in order to provide better accuracy. The implemented method uses a mathematical model called Geometric Brownian Motion (GBM) in order to simulate stock pr
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Sisto, Alessandro. "Geometric and probabilistic aspects of groups with hyperbolic features." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:bcf456c4-eef0-4fe8-bb7d-8b15f9cf7b18.

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The main objects of interest in this thesis are relatively hyperbolic groups. We will study some of their geometric properties, and we will be especially concerned with geometric properties of their boundaries, like linear connectedness, avoidability of parabolic points, etc. Exploiting such properties will allow us to construct, under suitable hypotheses, quasi-isometric embeddings of hyperbolic planes into relatively hyperbolic groups and quasi-isometric embeddings of relatively hyperbolic groups into products of trees. Both results have applications to fundamental groups of 3-manifolds. We
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15

Moraes, José Agissander Oliveira de. "Probabilidade geométrica e aplicações." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/4028.

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Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2015-01-30T10:57:12Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - José Agissander Oliveira de Moraes - 2014.pdf: 1429306 bytes, checksum: b39595540dde7558a49f60951c7d214b (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-01-30T13:27:13Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - José Agissander Oliveira de Moraes - 2014.pdf: 1429306 bytes, checksum: b3959554
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Spencer, Steven Robert. "Renewal theory for uniform random variables." CSUSB ScholarWorks, 2002. https://scholarworks.lib.csusb.edu/etd-project/2248.

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This project will focus on finding formulas for E[N(t)] using one of the classical problems in the discipline first, and then extending the scope of the problem to include overall times greater than the time t in the original problem. The expected values in these cases will be found using the uniform and exponential distributions of random variables.
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Guenda, Kenza. "On algebraic geometric codes and some related codes." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2033.

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Thesis (MSc (Mathematics))--University of Stellenbosch, 2006.<br>The main topic of this thesis is the construction of the algebraic geometric codes (Goppa codes), and their decoding by the list-decoding, which allows one to correct beyond half of the minimum distance. We also consider the list-decoding of the Reed–Solomon codes as they are subclass of the Goppa codes, and the determination of the parameters of the non primitive BCH codes. AMS Subject Classification: 4B05, 94B15, 94B35, 94B27, 11T71, 94B65,B70. Keywords: Linear codes, cyclic codes, BCH codes, Reed–Solomon codes, list-de
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Julià, i. de Ferran Olga. "Diferenciació, llei de probabilitat i temps local per a integrals estocàstiques en el pla." Doctoral thesis, Universitat de Barcelona, 1985. http://hdl.handle.net/10803/1572.

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DE LA TESI:<br/><br/>Certs fenòmens físics, per exemple el soroll tèrmic, la temperatura, la pressió i la velocitat del vent en un observatori meteorològic, es formalitzen mitjançant un procés aleatori unidimensional indexat en un interval de la recta real que generalment simbolitza el temps. Hi ha però altres situacions on és més natural considerar famílies de variables aleatòries indexades en una part de R(n) (n>/=2), com són la propagació de les ones en una superfície, la densitat electrònica dins el volum de l'àtom, la temperatura a la superfície de la terra, les tensions mecàniques dins d
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19

Dai, Xiaogang. "Score Test and Likelihood Ratio Test for Zero-Inflated Binomial Distribution and Geometric Distribution." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2447.

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The main purpose of this thesis is to compare the performance of the score test and the likelihood ratio test by computing type I errors and type II errors when the tests are applied to the geometric distribution and inflated binomial distribution. We first derive test statistics of the score test and the likelihood ratio test for both distributions. We then use the software package R to perform a simulation to study the behavior of the two tests. We derive the R codes to calculate the two types of error for each distribution. We create lots of samples to approximate the likelihood of type I
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Neeser, Rudolph. "A Comparison of Statistical and Geometric Reconstruction Techniques: Guidelines for Correcting Fossil Hominin Crania." Thesis, University of Cape Town, 2007. http://pubs.cs.uct.ac.za/archive/00000413/.

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The study of human evolution centres, to a large extent, around the study of fossil morphology, including the comparison and interpretation of these remains within the context of what is known about morphological variation within living species. However, many fossils suffer from environmentally caused damage (taphonomic distortion) which hinders any such interpretation: fossil material may be broken and fragmented while the weight and motion of overlaying sediments can cause their plastic distortion. To date, a number of studies have focused on the reconstruction of such taphonomically dama
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Jesus, Marco Antônio de. "Probabilidade geométrica com abordagem na esperança Matemática." Universidade Federal do Tocantins, 2018. http://hdl.handle.net/11612/937.

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Os estudos iniciais de análise combinatória e probabilidade tem uma forte relação com os jogos de azar, lembramos um jogo com dados praticado por Antoine Gombaud (Chavalier de Méré). Conta que Chavalier após uma bem sucedida estratégia (lançar um dado quatro vezes e obter um 6), conseguindo ganhos significativos, modificou o jogo para dois dados e venceria caso ocorresse um duplo 6 em 24 lançamentos, e neste acumula prejuízo. Detalhe que marca seu contanto com Blaise Pascal. Isto estimula o estudo de probabilidade em espaços discretos. Os conceitos probabilísticos discretos (conjunto enu
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Araújo, Erisvandro Américo de. "Probabilidade geométrica no Ensino Médio: Uma experiência usando o Geogebra." Universidade Estadual da Paraíba, 2017. http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/2767.

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Ritter, Denise. "O ENSINO DE PROBABILIDADE GEOMÉTRICA: DESAFIOS E POSSIBILIDADES." Centro Universitário Franciscano, 2017. http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/586.

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Submitted by MARCIA ROVADOSCHI (marciar@unifra.br) on 2018-08-20T14:10:11Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_DeniseRitter.pdf: 8038871 bytes, checksum: 560e6570b68009c1e275ada781962ed5 (MD5)<br>Made available in DSpace on 2018-08-20T14:10:11Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_DeniseRitter.pdf: 8038871 bytes, checksum: 560e6570b68009c1e275ada781962ed5 (MD5) Previous issue date: 2017-02-17<br>Whereas the content of Geometric Probability is usually n
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Sánchez, Trigueros Fernando. "Geospatial patterns in the late pleistocene human settlement of the Sierra de Atapuerca (Burgos, Spain): spatial association, geometric probability and fuzzy statistics in the study of past land-use strategies." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/125660.

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La presente tesis doctoral se centra en el diseño, implementación y aplicación de técnicas probalbilísticas y estadísticas para el análisis espacial y la evaluación de la incertidumbre, en el contexto de un problema de palaeoecología humana. La razón técnica de tal estrategia de investigación se debe a que los patrones de datos arqueológicos han sido afectados por procesos tafonómicos y por restricciones a la captura de datos, los cuales pueden identificarse pero no reconstruirse con total certidumbre. En la definición de problemáticas específicas a partir de tales cuestiones fijamos tres obje
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Kong, Nayeong. "Convergence Rates of Spectral Distribution of Random Inner Product Kernel Matrices." Diss., Temple University Libraries, 2018. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/498132.

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Mathematics<br>Ph.D.<br>This dissertation has two parts. In the first part, we focus on random inner product kernel matrices. Under various assumptions, many authors have proved that the limiting empirical spectral distribution (ESD) of such matrices A converges to the Marchenko- Pastur distribution. Here, we establish the corresponding rate of convergence. The strategy is as follows. First, we show that for z = u + iv ∈ C, v > 0, the distance between the Stieltjes transform m_A (z) of ESD of matrix A and Machenko-Pastur distribution m(z) is of order O (log n \ nv). Next, we prove the Kolmogor
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Narváez, Clauss Marta. "Quantitative equidistribution of Galois orbits of points of small height on the algebraic torus." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/403982.

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El teorema de equidistribución de Bilu establece que, dada una sucesión estricta de puntos en el toro algebraico N-dimensional cuya altura de Weil tiende a cero, las órbitas de Galois de los puntos se equidistribuyen con respecto a la medida de Haar de probabilidad del policírculo unidad. Para el caso unidimensional, versiones cuantitativas de este resultado fueron obtenidas independientemente por Petsche y por Favre y Rivera-Letelier. Se presenta en esta tesis una versión cuantitativa del resultado de Bilu para el caso de dimensión cualquiera. Dado un punto en el toro algebraico de dimensión
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Siu, Daniel. "Stochastic Hybrid Dynamic Systems: Modeling, Estimation and Simulation." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4405.

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Stochastic hybrid dynamic systems that incorporate both continuous and discrete dynamics have been an area of great interest over the recent years. In view of applications, stochastic hybrid dynamic systems have been employed to diverse fields of studies, such as communication networks, air traffic management, and insurance risk models. The aim of the present study is to investigate properties of some classes of stochastic hybrid dynamic systems. The class of stochastic hybrid dynamic systems investigated has random jumps driven by a non-homogeneous Poisson process and deterministic jumps trig
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Bezerra, Josà Luciano Nascimento. "Probabilidade e probabilidade geomÃtrica: alÃm dos dados, moedas e cartas de baralho." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15608.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>O presente trabalho consiste numa abordagem didÃtico-pedagÃgica do estudo e do ensino da Teoria das Probabilidades na EducaÃÃo BÃsica, com Ãnfase no conceito de Probabilidade GeomÃtrica, sua importÃncia e relevÃncia para uma aprendizagem mais significativa, efetiva e atrativa. Inicia-se com a histÃria e evoluÃÃo deste singular ramo da MatemÃtica Aplicada, seguindo-se uma seÃÃo com teoria e prÃtica atravÃs da resoluÃÃo de exercÃcios. O conceito de probabilidade geomÃtrica à introduzido e desenvolvido a fim de mostrar quÃo mais abrang
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Dragan, Rastovac. "Analiza energetske efikasnosti isporuke multimedijalnih servisa u mobilnim ćelijskim sistemima četvrte generacije (LTE/LTE-A)." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=101087&source=NDLTD&language=en.

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U ovoj disertaciji razvijeni su analitički alati za izračunavanje protoka servisa, propusnog opsega i u&scaron;tede energije zahtevanim u različitim eMBMS LTE/LTE-A servisnim strukturama. Takođe, mi smo analizirali protok podataka i optimalnu dodelu parametara za prenos na fizičkom sloju za eMBMS baziran video servis u 2-klasnoj heterogenoj mreži primenom stohastičke geometrije.<br>In this dissertation we develop simple analytical tools for evaluation of average service data rates, bandwidth and energy consumption requirements in dierent eMBMS LTE/LTE-A service congurations. Also, we consider
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Viana, Fernando Cesar de Abreu. "Estudo e aplicações de probabilidade geométrica e paradoxos." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/7652.

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Razaaly, Nassim. "Rare Event Estimation and Robust Optimization Methods with Application to ORC Turbine Cascade." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX027.

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Cette thèse vise à formuler des méthodes innovantes de quantification d'incertitude (UQ) à la fois pour l'optimisation robuste (RO) et l'optimisation robuste et fiable (RBDO). L’application visée est l’optimisation des turbines supersoniques pour les Cycles Organiques de Rankine (ORC).Les sources d'énergie typiques des systèmes d'alimentation ORC sont caractérisées par une source de chaleur et des conditions thermodynamiques entrée/sortie de turbine variables. L'utilisation de composés organiques, généralement de masse moléculaire élevée, conduit à des configurations de turbines sujettes à des
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Canavezi, Leandro Souza. "Uma proposta lúdica com utilização do GeoGebra para o estudo de funções quadráticas e probabilidade geométrica." Universidade Federal de São Carlos, 2016. https://repositorio.ufscar.br/handle/ufscar/8120.

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Dubourg, Vincent. "Méta-modèles adaptatifs pour l'analyse de fiabilité et l'optimisation sous contrainte fiabiliste." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2011. http://tel.archives-ouvertes.fr/tel-00697026.

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Cette thèse est une contribution à la résolution du problème d'optimisation sous contrainte de fiabilité. Cette méthode de dimensionnement probabiliste vise à prendre en compte les incertitudes inhérentes au système à concevoir, en vue de proposer des solutions optimales et sûres. Le niveau de sûreté est quantifié par une probabilité de défaillance. Le problème d'optimisation consiste alors à s'assurer que cette probabilité reste inférieure à un seuil fixé par les donneurs d'ordres. La résolution de ce problème nécessite un grand nombre d'appels à la fonction d'état-limite caractérisant le pro
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Gouyou, Doriane. "Introduction de pièces déformables dans l’analyse de tolérances géométriques de mécanismes hyperstatiques." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0343/document.

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Les mécanismes hyperstatiques sont souvent utilisés dans l’industrie pour garantir une bonne tenue mécanique du système et une bonne robustesse aux écarts de fabrication des surfaces. Même si ces assemblages sont très courants, les méthodologies d’analyse de tolérances de ces mécanismes sont difficiles à mettre en oeuvre.En fonction de ses écarts de fabrication, un assemblage hyperstatique peut soit présenter des interférences de montage, soit être assemblé avec jeu. Dans ces travaux de thèse, nous avons appliqué la méthode des polytopes afin de détecter les interférences de montage. Pour un a
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35

Kabbara, Yeihya. "Caractérisation des images à Rayon-X de la main par des modèles mathématiques : application à la biométrie." Thesis, Paris Est, 2015. http://www.theses.fr/2015PEST1015/document.

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Dans son contexte spécifique, le terme « biométrie » est souvent associé à l'étude des caractéristiques physiques et comportementales des individus afin de parvenir à leur identification ou à leur vérification. Ainsi, le travail développé dans cette thèse nous a conduit à proposer un algorithme d'identification robuste, en considérant les caractéristiques intrinsèques des phalanges de la main. Considérée comme une biométrie cachée, cette nouvelle approche peut s'avérer intéressante, notamment lorsqu'il est question d'assurer un niveau de sécurité élevé, robuste aux différentes attaques qu'un s
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Cao, Xiaoou. "Growth of Galton-Watson trees with lifetimes, immigrations and mutations." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:beaa9fe1-d60c-4487-9520-e8f004b53e6f.

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In this work, we are interested in Growth of Galton-Watson trees under two different models: (1) Galton-Watson (GW) forests with lifetimes and/or immigrants, and (2) Galton-Watson forests with mutation, which we call Galton-Watson-Clone-Mutant forests, or GWCMforests. Under each model, we study certain consistent families (Fλ)λ≥0 of GW/GWCM forests and associated decompositions that include backbone decomposition as studied by many authors. Specifically, consistency here refers to the property that for each μ ≤ λ, the forest Fμ has the same distribution as the subforest of Fλ spanned by the bl
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Halconruy, Hélène. "Calcul de Malliavin et structures de Dirichlet pour des variables aléatoires indépendantes." Electronic Thesis or Diss., Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAT016.

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Cette thèse porte sur le calcul de Malliavin dont on munit deux cadres discrets. On équipe tout produit dénombrable d'espaces de probabilités d'une structure de Dirichlet-Malliavin au moyen d'opérateurs (gradient, divergence, opérateur nombre), d'une formule d'intégration par parties, et des formes de Dirichlet induites. On obtient les analogues discrets aux identités fonctionnelles classiques des processus Brownien et Poisson dont les structures de Dirichlet s'écrivent comme limites des structures induites par notre formalisme. Des critères de Stein-Malliavin discrets sont établis pour les ap
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38

Studeny, Angelika C. "Quantifying biodiversity trends in time and space." Thesis, University of St Andrews, 2012. http://hdl.handle.net/10023/3414.

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The global loss of biodiversity calls for robust large-scale diversity assessment. Biological diversity is a multi-faceted concept; defined as the “variety of life”, answering questions such as “How much is there?” or more precisely “Have we succeeded in reducing the rate of its decline?” is not straightforward. While various aspects of biodiversity give rise to numerous ways of quantification, we focus on temporal (and spatial) trends and their changes in species diversity. Traditional diversity indices summarise information contained in the species abundance distribution, i.e. each species'
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Chung, François. "Modélisation de l'apparence de régions pour la segmentation d'images basée modèle." Phd thesis, École Nationale Supérieure des Mines de Paris, 2011. http://pastel.archives-ouvertes.fr/pastel-00575796.

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Cette thèse est consacrée à un nouveau modèle d'apparence pour la segmentation d'images basée modèle. Ce modèle, dénommé Multimodal Prior Appearance Model (MPAM), est construit à partir d'une classification EM de profils d'intensité combinée avec une méthode automatique pour déterminer le nombre de classes. Contrairement aux approches classiques basées ACP, les profils d'intensité sont classifiés pour chaque maillage et non pour chaque sommet. Tout d'abord, nous décrivons la construction du MPAM à partir d'un ensemble de maillages et d'images. La classification de profils d'intensité et la dét
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Riou-Durand, Lionel. "Theoretical contributions to Monte Carlo methods, and applications to Statistics." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLG006/document.

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La première partie de cette thèse concerne l'inférence de modèles statistiques non normalisés. Nous étudions deux méthodes d'inférence basées sur de l'échantillonnage aléatoire : Monte-Carlo MLE (Geyer, 1994), et Noise Contrastive Estimation (Gutmann et Hyvarinen, 2010). Cette dernière méthode fut soutenue par une justification numérique d'une meilleure stabilité, mais aucun résultat théorique n'avait encore été prouvé. Nous prouvons que Noise Contrastive Estimation est plus robuste au choix de la distribution d'échantillonnage. Nous évaluons le gain de précision en fonction du budget computat
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Bonis, Thomas. "Algorithmes d'apprentissage statistique pour l'analyse géométrique et topologique de données." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS459/document.

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Dans cette thèse, on s'intéresse à des algorithmes d'analyse de données utilisant des marches aléatoires sur des graphes de voisinage, ou graphes géométriques aléatoires, construits à partir des données. On sait que les marches aléatoires sur ces graphes sont des approximations d'objets continus appelés processus de diffusion. Dans un premier temps, nous utilisons ce résultat pour proposer un nouvel algorithme de partitionnement de données flou de type recherche de modes. Dans cet algorithme, on définit les paquets en utilisant les propriétés d'un certain processus de diffusion que l'on approc
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Sengele, Loic. "Etude des modes octupolaires dans le noyau atomique de 156Gd : recherche expérimentale de la symétrie tétraédrique." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAE038/document.

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Les symétries géométriques jouent un rôle important dans la compréhension de la stabilité de tout système physique. En structure nucléaire, elles sont reliées à la forme du champ moyen utilisé pour décrire les propriétés des noyaux atomiques. Dans le cadre de cette thèse, nous avons utilisé les prédictions obtenues avec l'aide du Hamiltonien du champ moyen nucléaire avec le potentiel de Woods-Saxon Universel pour étudier les effets des symétries dites de « Haut-Rang ». Ces symétries ponctuelles mènent à des dégénérescences des états nucléaires d’ordre 4. Il est prédit que la symétrie tétraédri
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43

Zhuang, Yanyan. "A Geometrical probability approach to location-critical network performance metrics." Thesis, 2012. http://hdl.handle.net/1828/3856.

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The field of wireless communications has been experiencing tremendous growth with the ever-increasing dependence on wireless services. In the operation of a communication network, the network coverage and node placement are of profound importance. The network performance metrics can be modeled as nonlinear functions of inter-node distances. Therefore, a geometric abstraction of the distance between wireless devices becomes a prerequisite for accurate system modeling and analysis. A geometrical probability approach is presented in this dissertation to characterize the probabilistic distance prop
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Ahmadi, Maryam. "Modeling and analysis of wireless cognitive radio networks: a geometrical probability approach." Thesis, 2015. http://hdl.handle.net/1828/7055.

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Wireless devices and applications have been an unavoidable part of human lives in the past decade. In the past few years, the global mobile data traffic has grown considerably and is expected to grow even faster in future. Given the fact that the number of wireless nodes has significantly increased, the contention and interference on the license-free industrial, scientific, and medical band has become severer than ever. Cognitive radio nodes were introduced in the past decade to mitigate the issues related to spectrum scarcity. In this dissertation, we focus on the interference and performan
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45

"A central limit theorem for the exodic tree and exodic matching in geometrical probability." Alfred p. Sloan School of Management, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/2363.

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Dimitris J. Bertsimas, Garrett van Ryzin.<br>Includes bibliographical references (p. 16-17).<br>Supported by the National Science Foundation. DDM-9014751 DDM-9010332 Supported by grants from the UPS Foundation.
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"An asymptotic determination of the minimum spanning tree and minimum matching constants in geometrical probability." Alfred P. Sloan School of Management, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/2263.

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47

Marcinčín, Martin. "Počátky teorie pravděpodobnosti." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-352316.

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The purpose of this thesis is to give a summary of historical development and explain fundamentals of the probability theory. Early systematic thoughts, emergence of classical Laplace, geometric and statistical definition of probability with development of theory, independence, conditional probability and Bayes theorem are shown. The thesis describes first mention of random values and the central limit theorem. The alternative, discrete uniform, binomial, Poisson, continuous uniform, normal and exponential distributions are discussed with historical background of their discoveries. The theory
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48

Liu, Ying. "Geometric On-line Ray Searching Under Probability of Placement Scenarios." Thesis, 2010. http://hdl.handle.net/10012/5520.

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Online computation is a model for formulating decision making under uncertainty. In an online problem, the algorithm does not know the entire input from the beginning; the input is revealed in a sequence of steps. At each step, the algorithm should make its decisions based on the past and without any knowledge about the future. Many important real-life problems such as robot navigation are intrinsically online and thus the design and analysis of online algorithms is one of the main research areas in theoretical computer science. Competitive analysis is the standard measure for analysis of onl
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Eley, Peter Madison. "Does using computer software make a difference in learning geometric and probability concepts?" 2008. http://www.lib.ncsu.edu/theses/available/etd-10222008-152147/unrestricted/etd.pdf.

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McDaniel, Chris Ray. "Geometric and Combinatorial Aspects of 1-Skeleta." 2010. https://scholarworks.umass.edu/open_access_dissertations/250.

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In this thesis we investigate 1-skeleta and their associated cohomology rings. 1-skeleta arise from the 0- and 1-dimensional orbits of a certain class of manifold admitting a compact torus action and many questions that arise in the theory of 1-skeleta are rooted in the geometry and topology of these manifolds. The three main results of this work are: a lifting result for 1-skeleta (related to extending torus actions on manifolds), a classification result for certain 1-skeleta which have the Morse package (a property of 1-skeleta motivated by Morse theory for manifolds) and two constructions o
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