Relevant bibliographies by topics / Sampling event / Dissertations / Theses
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Dissertations / Theses on the topic 'Sampling event'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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1

Gustafsson, Linus. "Event-triggered sampling with packet losses." Thesis, KTH, Reglerteknik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-105717.

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The communication rate between the sensor and the supervisor in computer controlled systems is often limited. If multiple sensors are using the same communication link the limitation can compromise the control of the system, especially when wireless technology is used. To lower the communication rate new sampling methods have been evaluated. Event-triggered sampling has shown to give good results when it comes to sampling for control. This thesis presents a redundancy solution when a first order water tank plant is controlled by the use event-triggered sampling and the communication link betwe
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2

Miguel, Escrig Oscar. "Event-Based PID Controllers with Fixed Threshold Sampling Strategies." Doctoral thesis, Universitat Jaume I, 2021. http://dx.doi.org/10.6035/14107.2021.428369.

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This thesis studies the robustness and performance of Event-Based Controllers applied to network control. In these systems, event generation techniques are of paramount importance, among them, sampling techniques with fixed thresholds are studied. In this thesis, a new sampling technique is proposed and methodologies are developed to analyze the robustness of the control loop with this and other sampling techniques with fixed thresholds, using different analysis tools. From these analyzes, several tuning rules specifically developed for these sampling techniques are proposed. In addition, the
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3

Stevens, Kevin Wilson. "Adaptive sequential sampling for extreme event statistics in ship design." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118693.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.<br>Thesis: S.M. in Naval Architecture and Marine Engineering, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 103-105).<br>For more than a century, many facets of ship design have fallen into the domain of rules-based engineering. Recent technological progress has been validated to the point that many of these areas will soon warrant reconsideration. In this emerging environment
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4

Walter, Clément. "Using Poisson processes for rare event simulation." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC304/document.

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Cette thèse est une contribution à la problématique de la simulation d'événements rares. A partir de l'étude des méthodes de Splitting, un nouveau cadre théorique est développé, indépendant de tout algorithme. Ce cadre, basé sur la définition d'un processus ponctuel associé à toute variable aléatoire réelle, permet de définir des estimateurs de probabilités, quantiles et moments sans aucune hypothèse sur la variable aléatoire. Le caractère artificiel du Splitting (sélection de seuils) disparaît et l'estimateur de la probabilité de dépasser un seuil est en fait un estimateur de la fonction de r
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Rochat, Sylvie. "Emotion work in daily interactions at work an event-sampling approach /." [Neuchâtel] : [s.n.], 2004. http://aleph.unisg.ch/hsgscan/hm00122804.pdf.

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6

Zhang, Benjamin Jiahong. "A coupling approach to rare event simulation via dynamic importance sampling." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112384.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 106-109).<br>Rare event simulation involves using Monte Carlo methods to estimate probabilities of unlikely events and to understand the dynamics of a system conditioned on a rare event. An established class of algorithms based on large devia
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7

Petri, Elena. "Hybrid techniques for state estimation : event-triggered sampling and performance improvement." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0161.

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L'estimation de l'état des systèmes dynamiques est un thème central de l'automatique, où un observateur est conçu pour estimer les états non mesurés en exploitant la connaissance du modèle mathématique du système et les mesures d'entrée et de sortie. Bien que de nombreuses techniques soient disponibles dans la littérature pour concevoir des observateurs pour les systèmes linéaires et non linéaires à temps continu, il reste encore de nombreux problèmes ouverts. Parmi ces défis, on soulignera la question de la conception de l'observateur en présence de contraintes de communication entre le systè
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8

Rabi, Maben, Karl Henrik Johansson, and Mikael Johansson. "Optimal stopping for event-triggered sensing and actuation." KTH, Reglerteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-80709.

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Novel event-triggered sensing and actuation strategies are presented for networked control systems with limited communication resources. Two architectures are considered: one with the controller co-located with the sensor and one with the control co-located with the actuator. A stochastic control problem with an optimal stopping rule is shown to capture two interesting instances of these architectures. The solution of the problem leads to a parametrization of the control alphabet as piecewise constant commands. The execution of the control commands is triggered by stopping rules for the sensor
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9

Ohneberg, Kristin [Verfasser], and Martin [Akademischer Betreuer] Schumacher. "Sampling designs for complex time-to-event data in clinical and epidemiological studies." Freiburg : Universität, 2019. http://d-nb.info/1202712738/34.

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10

Larkin, Joshua D. "Photon event distribution sampling (PEDS) image formation & high precision particle localization in scanning microscopy /." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3355587.

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11

Norgren, Tommy, and Jonathan Styrud. "Non-periodic sampling schemes for control applications." Thesis, Uppsala universitet, Signaler och System, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-154500.

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In recent years, research in the field of automation has been advancing quickly in the direction of wireless networks of sensors and actuators. This development has introduced a need to reduce the amount of communication. A number of different alternative schemes have been proposed. They are usually divided into event-triggered schemes and self-triggered ones. The main purpose of this Master's thesis was to further develop and evaluate the sesampling schemes, focusing on their needed communication. The effect on control performance by the different schemes was also taken into account. Because
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12

Stein, Jordan. "Situational and Trait Influences on Dynamic Justice." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194844.

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As the past twenty years of justice research have demonstrated, perceiving the workplace as fair is associated with higher levels of organizational commitment, job satisfaction, work-related effort, acceptance of work-related policies and procedures, and decreased absenteeism. However, although not always explicitly stated in theories of fairness, there has been a tacit understanding that justice perceptions are not static, but influenced by a variety of factors. In short, extant justice theories assume there are underlying dynamic elements within the construct, but the measures and previous r
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13

Nyström, Kenn. "Deltagande i fysiska videospelsträffar och dess sociala effekter för individen : En fallstudie av ett IRL-game event." Thesis, Umeå universitet, Institutionen för informatik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-122913.

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Video games and the social effects that they inflict upon society and the individual have been a highly debated subject. While studies have been made in regards to several social issues and their connection to video games, there was little research in regards to physical game gatherings like LAN-parties, as well as larger game gatherings like Dreamhack, and what the social effects of having physical contact with other people are at these gatherings. The goal with this study was to answer the question: “What are the social effects for the individual when participating in physical video game gat
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14

Jegourel, Cyrille. "Rare event simulation for statistical model checking." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S084/document.

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Dans cette thèse, nous considérons deux problèmes auxquels le model checking statistique doit faire face. Le premier concerne les systèmes hétérogènes qui introduisent complexité et non-déterminisme dans l'analyse. Le second problème est celui des propriétés rares, difficiles à observer et donc à quantifier. Pour le premier point, nous présentons des contributions originales pour le formalisme des systèmes composites dans le langage BIP. Nous en proposons une extension stochastique, SBIP, qui permet le recours à l'abstraction stochastique de composants et d'éliminer le non-déterminisme. Ce dou
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15

Hensel, Burkhard. "Einstellung von PI-Reglern bei Send-on-Delta-Abtastung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-231478.

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Energieeffizienz hat in Forschung und Alltag eine zentrale Bedeutung. Arbeiten verschiedene elektronische Geräte zusammen, um gemeinsam eine Regelungsaufgabe zu lösen, müssen sie miteinander kommunizieren. Ein Beispiel aus dem Alltag sind Funk-Raumtemperaturregler, bei denen ein batteriebetriebener Temperatursensor und ein Heizungsaktor (Stellantrieb am Heizungsventil) über drahtlose Kommunikation zusammenarbeiten. Diese Kommunikation benötigt oft mehr Energie als der Betrieb der eigentlichen (elektronischen) Funktionalität der Teilsysteme. Energieeffizienter als die in Regelkreisen übliche pe
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16

Carter, Drew Davis. "Characterisation of cardiac signals using level crossing representations." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/130760/1/Drew_Carter_Thesis.pdf.

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This study examines a type of event-based sampling known as Level Crossing - its behaviour when applied to noisy signals, and an application to cardiac arrhythmia detection. Using a probabilistic approach, it presents a mathematical description of events sampled from noisy signals, and uses the model to estimate characteristics of the underlying clean signal. It evaluates the use of segments of polynomials, calculated from the Level Crossing samples of real cardiac signals, as features for machine learning algorithms to identify various types of arrhythmia.
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17

Harris, Mary Margaret. "Unpacking Emotional Dissonance: Examining the Effects of Event-Level Emotional Dissonance on Well-Being Using Polynomial Regression." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1401281006.

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18

Nemoto, Takahiro. "Phenomenological structure for large deviation principle in time-series statistics." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199092.

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19

Järnberg, Emelie. "Dynamic Credit Models : An analysis using Monte Carlo methods and variance reduction techniques." Thesis, KTH, Matematisk statistik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-197322.

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In this thesis, the credit worthiness of a company is modelled using a stochastic process. Two credit models are considered; Merton's model, which models the value of a firm's assets using geometric Brownian motion, and the distance to default model, which is driven by a two factor jump diffusion process. The probability of default and the default time are simulated using Monte Carlo and the number of scenarios needed to obtain convergence in the simulations is investigated. The simulations are performed using the probability matrix method (PMM), which means that a transition probability matri
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20

Rabehi, Djahid. "Estimation par Intervalles des Systèmes Cyber-physiques." Thesis, Orléans, 2019. http://www.theses.fr/2019ORLE3038.

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Les systèmes cyber-physiques sont des intégrations intelligentes de calculateurs, de réseaux de communications, et de processus physiques. Dans cette thèse, nous travaillons dans le contexte erreur inconnue mais bornée de borne connue, et nous nous intéressons à l'estimation d'état des systèmes dynamiques sous contraintes de communication. Nous proposons des méthodes de synthèse d'observateurs par intervalles pour des systèmes linéaires à temps continu, et dont les mesures à temps discret sont transmises à travers un réseau de communication.Les contributions de cette thèse sont les suivantes:
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21

Leitão, Jorge C. "Importance Sampling of Rare Events in Chaotic Systems." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-209014.

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Rare events play a crucial role in our society and a great effort has been dedicated to numerically study them in different contexts. This thesis proposes a numerical methodology based on Monte Carlo Metropolis-Hastings algorithm to efficiently sample rare events in chaotic systems. It starts by reviewing the relevance of rare events in chaotic systems, focusing in two types of rare events: states in closed systems with rare chaoticities, characterised by a finite-time Lyapunov exponent on a tail of its distribution, and states in transiently chaotic systems, characterised by a escape time on
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22

Viveca, Lindahl. "Optimizing sampling of important events in complex biomolecular systems." Doctoral thesis, KTH, Fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217837.

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Proteins and DNA are large, complex molecules that carry out biological functions essential to all life. Their successful operation relies on adopting specific structures, stabilized by intra-molecular interactions between atoms. The spatial and temporal resolution required to study the mechanics of these molecules in full detail can only be obtained using computer simulations of molecular models. In a molecular dynamics simulation, a trajectory of the system is generated, which allows mapping out the states and dynamics of the molecule. However, the time and length scales characteristic of bi
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23

Chabridon, Vincent. "Analyse de sensibilité fiabiliste avec prise en compte d'incertitudes sur le modèle probabiliste - Application aux systèmes aérospatiaux." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC054/document.

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Les systèmes aérospatiaux sont des systèmes complexes dont la fiabilité doit être garantie dès la phase de conception au regard des coûts liés aux dégâts gravissimes qu’engendrerait la moindre défaillance. En outre, la prise en compte des incertitudes influant sur le comportement (incertitudes dites « aléatoires » car liées à la variabilité naturelle de certains phénomènes) et la modélisation de ces systèmes (incertitudes dites « épistémiques » car liées au manque de connaissance et aux choix de modélisation) permet d’estimer la fiabilité de tels systèmes et demeure un enjeu crucial en ingénie
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24

Karlsson, Kristin E. "Benefits of Pharmacometric Model-Based Design and Analysis of Clinical Trials." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-133104.

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Quantitative pharmacokinetic-pharmacodynamic and disease progression models are the core of the science of pharmacometrics which has been identified as one of the strategies that can make drug development more effective. To adequately develop and utilize these models one needs to carefully consider the nature of the data, choice of appropriate estimation methods, model evaluation strategies, and, most importantly, the intended use of the model. The general aim of this thesis was to investigate how the use of pharmacometric models can improve the design and analysis of clinical trials within dr
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25

Darwish, Amani. "Capteur d'images événementiel, asynchrone à échantillonnage non-uniforme." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT071/document.

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Face aux défis actuels liés à la conception de capteurs d'images à forte résolution comme la limitation de la consommation électrique, l'augmentation du flux de données ainsi que le traitement de données associé, on propose, à travers cette thèse, un capteur d'image novateur asynchrone à échantillonnage non uniforme.Ce capteur d’images asynchrone est basé sur une matrice de pixels événementiels qui intègrent un échantillonnage non uniforme par traversée de niveaux. Contrairement aux imageurs conventionnels, où les pixels sont lus systématiquement lors de chaque trame, les pixels événementiels
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Simatic, Jean. "Flot de conception pour l'ultra faible consommation : échantillonnage non-uniforme et électronique asynchrone." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT084/document.

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Les systèmes intégrés sont souvent des systèmes hétérogènes avec des contraintes fortes de consommation électrique. Ils embarquent aujourd'hui des actionneurs, des capteurs et des unités pour le traitement du signal. Afin de limiter l'énergie consommée, ils peuvent tirer profit des techniques évènementielles que sont l'échantillonnage non uniforme et l'électronique asynchrone. En effet, elles permettent de réduire drastiquement la quantité de données échantillonnées pour de nombreuses classes de signaux et de diminuer l'activité. Pour aider les concepteurs à développer rapidement des plateform
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Jacquemart, Damien. "Contributions aux méthodes de branchement multi-niveaux pour les évènements rares, et applications au trafic aérien." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S186/document.

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La thèse porte sur la conception et l'analyse mathématique de méthodes de Monte Carlo fiables et précises pour l'estimation de la (très petite) probabilité qu'un processus de Markov atteigne une région critique de l'espace d'état avant un instant final déterministe. L'idée sous-jacente aux méthodes de branchement multi-niveaux étudiées ici est de mettre en place une suite emboitée de régions intermédiaires de plus en plus critiques, de telle sorte qu'atteindre une région intermédiaire donnée sachant que la région intermédiaire précédente a déjà été atteinte, n'est pas si rare. En pratique, les
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28

DHAMODARAN, RAMYA. "EFFICIENT ANALYSIS OF RARE EVENTS ASSOCIATED WITH INDIVIDUAL BUFFERS IN A TANDEM JACKSON NETWORK." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1099073321.

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29

Poma, Bernaola Adolfo Maximo. "Simulações atomísticas de eventos raros através de Transition Path Sampling." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278438.

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Orientador: Maurice de Koning<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin<br>Made available in DSpace on 2018-08-08T20:27:57Z (GMT). No. of bitstreams: 1 PomaBernaola_AdolfoMaximo_M.pdf: 3697892 bytes, checksum: a07c1ad647a61d9862283f697732410e (MD5) Previous issue date: 2007<br>Resumo: Nesta dissertação abordamos o estudo de uma das limitações da simulação atomística denominada o evento raro, quem é responsável pela limitação temporal, exemplos de problemas que envolvem os eventos raros são, o enovelamento de proteínas, mudanças conformac
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Chastain, James R. Jr. "A Heuristic Methodology for Locating Monitoring Stations to Detect Contamination Events in Potable Water Distribution Systems." Scholar Commons, 2004. https://scholarcommons.usf.edu/etd/988.

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The requirements to protect public water systems from intentional contamination have expanded in the years following September 11, 2001. The areal extent and non-linear nature of water demand and movement in the distribution system makes efficient location of sampling points difficult. This difficulty is compounded by the fact that contamination conceptually can occur at any point and at any time within the distribution system. Small to mid-sized water systems are especially at a disadvantage in addressing this issue due to limited resources available to them. This paper proposes a heuristic m
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Bylsma, Lauren M. "Examining emotional reactivity to daily events in major and minor depression." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002571.

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32

Audoux, Thomas. "Approches expérimentales pour l’étude et la caractérisation des dépôts humides d’aérosols atmosphériques par les précipitations." Electronic Thesis or Diss., Université Paris Cité, 2022. http://www.theses.fr/2022UNIP7332.

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Dans le cadre de mon travail de thèse, je me suis intéressé aux aérosols atmosphériques et à leur transfert de l’atmosphère vers les surfaces terrestres par les précipitations. La stratégie générale que j’ai suivie repose sur l’observation des dépôts humides sur différentes échelles de temps, interannuelle d’une part et intraévènementielle de l’autre. Elle repose aussi sur leur observation dans des environnements marqués en termes de charge et de composition en aérosols, mais aussi de dynamiques atmosphériques et de précipitations. Le fait de combiner des mesures à la fois sur la composition d
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Leitão, Jorge C. [Verfasser], Holger [Akademischer Betreuer] [Gutachter] Kantz, Roland [Gutachter] Ketzmerick, and Tamás [Gutachter] Tél. "Importance Sampling of Rare Events in Chaotic Systems / Jorge C. Leitão ; Gutachter: Holger Kantz, Roland Ketzmerick, Tamás Tél ; Betreuer: Holger Kantz." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://d-nb.info/1114067997/34.

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Leitão, Jorge C. [Verfasser], Holger [Akademischer Betreuer] Kantz, Roland [Gutachter] Ketzmerick, and Tamás [Gutachter] Tél. "Importance Sampling of Rare Events in Chaotic Systems / Jorge C. Leitão ; Gutachter: Holger Kantz, Roland Ketzmerick, Tamás Tél ; Betreuer: Holger Kantz." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-209014.

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35

Viera, João Manuel Franco. "Análise de modelos de regressão binária com eventos raros." Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19273.

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Mestrado em Econometria Aplicada e Previsão<br>Nesta dissertação serão abordadas duas estratégias para lidar com eventos raros em variáveis dependentes binárias: a seleção amostral com base na variável dependente e a aplicação de modelos flexíveis. Enquanto que na primeira estratégia a proporção de eventos raros é inflacionada artificialmente na amostra usada para estimação, na segunda estratégia utilizam-se modelos cuja capacidade de descrição dos dados é potencialmente superior aos modelos binários standard (tipicamente o logit e o probit). Para estudar qual das opções será melhor empiricame
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Le, Pelleter Tugdual. "Méthode de discrétisation adaptée à une logique événementielle pour l'utra-faible consommation : application à la reconnaissance de signaux physiologiques." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT043/document.

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Les systèmes embarqués mobiles font partis intégrante de notre quotidien. Afin de les rendre plus adaptésaux usages, ils ont été miniaturisés et leur autonomie a été augmentée, parfois de façon très considérable.Toutefois, les propositions d’amélioration butent désormais sur les possibilités de la technologie des circuitsintégrés. Pour aller plus loin, il faut donc envisager de repenser la chaîne de traitement du signal afin deréduire la consommation de ces dispositifs. Cette thèse développe une approche originale pour exploiterefficacement l’échantillonnage par traversée de niveaux d’une part
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Saggadi, Samira. "Simulation d'évènements rares par Monte Carlo dans les réseaux hautement fiables." Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1S055.

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Le calcul de la fiabilité des réseaux est en général un problème NP-difficile. On peut par exemple s’intéresser à la fiabilité des systèmes de télécommunications où l'on veut évaluer la probabilité qu’un groupe sélectionné de nœuds peuvent communiquer. Dans ce cas, un ensemble de nœuds déconnectés peut avoir des conséquences critiques, que ce soit financières ou au niveau de la sécurité. Une estimation précise de la fiabilité est ainsi nécessaire. Dans le cadre de ce travail, on s'intéresse à l’étude et au calcul de la fiabilité des réseaux hautement fiables. Dans ce cas la défiabilité est trè
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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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Trac, Steven Cy. "Robust Explicit Construction of 3D Configuration Spaces Using Controlled Linear Perturbation." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/189.

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We present robust explicit construction of 3D configuration spaces using controlled linear perturbation. The input is two planar parts: a fixed set and a moving set, where each set is bounded by circle segments. The configuration space is the three-dimensional space of Euclidean transformation (translations plus rotations) of the moving set relative to the fixed set. The goal of constructing the 3D configuration space is to determine the boundary representation of the free space where the intersection of the moving set and fixed set is empty. To construct the configuration space, we use the co
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Lejarraga, Tomás. "Decisions from experience: Time delays, complexity and illusions of control." Doctoral thesis, Universitat Pompeu Fabra, 2009. http://hdl.handle.net/10803/7395.

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Esta tesis incluye tres capítulos que exploran diferentes aspectos de la distinción entre decisiones desde la descripción y decisiones desde la experiencia. El capítulo 1 estudia escenarios de decisión cuando las personas cuentan con información tanto desde la descripción como desde la experiencia. Los resultados sugieren que la experiencia es desatendida ante una descripción.También se explora el impacto sobre las decisiones de diferencias individales con respecto a la habilidad racional.Las personas con habilidad racional más alta obtienen muestras de mayor tamaño que los participantes con m
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Cumpston, John Richard. "New techniques for household microsimulation, and their application to Australia." Phd thesis, 2011. http://hdl.handle.net/1885/9046.

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Household microsimulation models are sometimes used by national governments to make long-term projections of proposed policy changes. They are costly to develop and maintain, and sometimes have short lifetimes. Most present national models have limited interactions between agents, few regions and long simulation cycles. Some models are very slow to run. Overcoming these limitations may open up a much wider range of government, business and individual uses. This thesis suggests techniques to help make multi-purpose dynamic microsimulations of households, with fine spatial resolutions, high sam
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Engelbrecht, B. J. "Sound art in Johannesburg: a critical review 2005-2009." Thesis, 2010. http://hdl.handle.net/10539/8228.

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ABSTRACT In this dissertation I offer a critical review of ‘sound art’ in Johannesburg between 2005 and 2009. The term ‘sound art’ was coined by Dan Lander in 1989. According to Christoph Cox, Dan Lander’s lament that sound art lacked “any substantial discourse” in 1989 still applied in 2007. My intention in this research is to start such a critical discourse for sound art in Johannesburg. I argue that sound art is a distinctive practice in the city, involving the body politic and underground, surface and edge as characterised by Achille Mbembe and Sarah Nuttall in their recent major w
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Garbacz, Justyna. "Evaluation of the impact of a mega-sporting event : perception of warsaw residents' toward 2012 UEFA EURO." Master's thesis, 2013. http://hdl.handle.net/1822/27528.

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Dissertação de mestrado em Economics, Markets and Public Policies<br>Abstract: Hosting a mega-sporting event, such as the UEFA European Championship in 2012, was a big challenge for a developing economy like Poland. The Polish government had plans for the modernization of the entire country. Organizing a mega-sporting event brings with it many costs which may not be covered by future economic gains. Nevertheless, an enterprise like this also triggers numerous non-monetary benefits, which can compensate for the costs incurred. EURO 2012 was a great experience for the Polish people, and one whic
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Kuruganti, Indira. "Optimal importance sampling for simulating rare events in Markov chains /." 1997. http://wwwlib.umi.com/dissertations/fullcit/9708640.

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Herron, John R. "Direct-sampling optical techniques for the study of transient combustion events." Thesis, 1989. http://hdl.handle.net/1957/38264.

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Techniques have been developed for measuring the temperature, stable species concentrations, and atomic radical concentrations during a transient combustion event. They combine the features of direct sampling with two spectroscopic techniques to produce relatively simple diagnostic techniques to obtain time-resolved measurements. In this study, a transient event was provided by a propagating hydrogen/air flame. Stable species were detected downstream of the sampling orifice by electron impact fluorimetry, while temperatures and atomic hydrogen concentrations were measured by atomic resonance a
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Morrison, Paul. "Driving efficiency in design for rare events using metamodeling and optimization." Thesis, 2015. https://hdl.handle.net/2144/16226.

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Rare events have very low probability of occurrence but can have significant impact. Earthquakes, volcanoes, and stock market crashes can have devastating impact on those affected. In industry, engineers evaluate rare events to design better high-reliability systems. The objective of this work is to increase efficiency in design optimization for rare events using metamodeling and variance reduction techniques. Opportunity exists to increase deterministic optimization efficiency by leveraging Design of Experiments to build an accurate metamodel of the system which is less resource intensive to
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Ben, Rached Nadhir. "Rare Events Simulations with Applications to the Performance Evaluation of Wireless Communication Systems." Diss., 2018. http://hdl.handle.net/10754/629483.

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The probability that a sum of random variables (RVs) exceeds (respectively falls below) a given threshold, is often encountered in the performance analysis of wireless communication systems. Generally, a closed-form expression of the sum distribution does not exist and a naive Monte Carlo (MC) simulation is computationally expensive when dealing with rare events. An alternative approach is represented by the use of variance reduction techniques, known for their efficiency in requiring less computations for achieving the same accuracy requirement. For the right-tail region, we develop a unifie
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Wolfsheimer, Stefan [Verfasser]. "Entropy functions and rare events in disordered systems by transfer matrix calculations and Monte Carlo sampling / von Stefan Wolfsheimer." 2009. http://d-nb.info/996766162/34.

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Ben, Issaid Chaouki. "Effcient Monte Carlo Simulations for the Estimation of Rare Events Probabilities in Wireless Communication Systems." Diss., 2019. http://hdl.handle.net/10754/660001.

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Simulation methods are used when closed-form solutions do not exist. An interesting simulation method that has been widely used in many scientific fields is the Monte Carlo method. Not only it is a simple technique that enables to estimate the quantity of interest, but it can also provide relevant information about the value to be estimated through its confidence interval. However, the use of classical Monte Carlo method is not a reasonable choice when dealing with rare event probabilities. In fact, very small probabilities require a huge number of simulation runs, and thus, the computatio
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Melo, Jorge Gabriel Oliveira. "Detection of Significant Blood Pressure Events in the Perioperative Care." Master's thesis, 2020. http://hdl.handle.net/10316/93965.

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Trabalho de Projeto do Mestrado Integrado em Engenharia Biomédica apresentado à Faculdade de Ciências e Tecnologia<br>Complicações cardíacas são comuns durante uma cirurgia, com uma estimativa de 30% dos pacientes submetidos a extensos procedimentos cirúrgicos devido à presença de comorbidades cardiovasculares e intervenções não cardíacas associadas a uma taxa de 7-11% de complicações, sendo que 42% dessas são causadas por problemas cardíacos. A hemodinâmica reflete a capacidade de perfusão de oxigénio e nutrientes em todos os órgãos, a fim de manter as funções orgânicas ideais e evitar compli
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