Дисертації з теми "Pointer Analysi"
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Ghiya, Rakesh. "Putting pointer analysis to work." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0002/NQ44439.pdf.
Повний текст джерелаSims, Elodie-Jane. "Pointer analysis and separation logic." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/506.
Повний текст джерелаFu, Zhoulai. "Static analysis of numerical properties in the presence of pointers." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00918593.
Повний текст джерелаSims, Elodie-Jane. "Analyses de Pointeurs et Logique de Séparation." Phd thesis, Ecole Polytechnique X, 2007. http://pastel.archives-ouvertes.fr/pastel-00003506.
Повний текст джерелаRaiskup, Pavel. "Vylepšení analýzy živých proměnných pomocí points-to analýzy." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2012. http://www.nusl.cz/ntk/nusl-236511.
Повний текст джерелаGARIBOLDI, BIANCA MARIA. "Norms of the lattice point discrepancy." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2017. http://hdl.handle.net/10281/151708.
Повний текст джерелаMain topic is the discrepancy, studied for different kind of sets under different hypothesis (curvature, dimensions,..). In particular we try to estimate the norms of the discrepancy respect to translations, rotations and dilations.
Rombourg, Romain. "Analyse, modélisation et détection de bruits pour scanners laser terrestres." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAM064.
Повний текст джерелаIn this thesis, we focused on several topics related to noise detection in point cloud generated by Terrestrial Laser Scanners (TLS). First, the projection methods to compute an image from a TLS scan. Second, the detection of sky noise, i.e. noise produced when a Amplitude Modulated Continuous Wave TLS measures range only from background radiation. And finally, the detection of mixed point noise, i.e. points acquired when the TLS was receiving return signals from several different surfaces. To tackle these challenges, we first analysed how the TLS samples space and deduced properties on how the local point cloud density evolves with respect to the elevation, this allowed us to show the limits of usual noise detection techniques and oriented our focus on 2D non density based detection techniques. We then defined a theoretical framework to analyse projection methods, unavoidable foundations for 2D detection methods. This framework allowed us to bring to light two fundamental properties that should be satisfied by a projection. Following these properties, we designed a projection algorithm that satisfied them as much as possible. We then defined a way to quantify projection quality and compared our proposed algorithm with the widely used classic algorithm and showed that the classic projection method is not adapted. Our proposed projection however showed very good results. Since the sky noise was never studied in previous works, we formally analysed it to build some theoretical foundations for sky detection. The analysis allowed us to show theoretically and experimentally that the range distribution of sky noise is independent of the underlying properties of the background radiation signal. From our projection and the discovered properties, we designed a sky detector and a mixed point detector. The detectors were tested via an extensive validation in controlled conditions. The results showed that our proposed detectors combined with the proposed projection are able to correctly detect almost all presented noise with few bad detection for the sky detectors and reasonable amount for the mixed point detector
Sălcianu, Alexandru D. (Alexandru Doru) 1975. "Pointer analysis and its applications for Java programs." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86781.
Повний текст джерелаIncludes bibliographical references (p. 135-137).
by Alexandru D. Sălcianu.
S.M.
Whaley, John. "Context-sensitive pointer analysis using binary decision diagrams /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Повний текст джерелаMensi, Amira. "Analyse des pointeurs pour le langage C." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2013. http://pastel.archives-ouvertes.fr/pastel-00944703.
Повний текст джерелаForkéus, Ted. "Distribution of Critical Points of Polynomials." Thesis, Karlstads universitet, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82941.
Повний текст джерелаWang, Jian. "Pointer analysis in Java programs using execution path information /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CSED%202008%20WANG.
Повний текст джерелаSălcianu, Alexandru D. (Alexandru Doru) 1975. "Pointer analysis for Java programs : novel techniques and applications." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/38311.
Повний текст джерелаIncludes bibliographical references (p. 193-200).
This dissertation presents a pointer analysis for Java programs, together with several practical analysis applications. For each program point, the analysis is able to construct a points-to graph that describes how local variables and object fields point to objects. Each points-to graph also contains escape information that identifies the objects that are reachable from outside the analysis scope. Our pointer analysis can extract correct information by analyzing only parts of a whole program. First, our analysis analyzes a method without requiring information about its calling context. Instead, our analysis computes parameterized results that are later instantiated for each relevant call site. Second, our analysis correctly handles calls to unanalyzable methods (e.g., native methods). Hence, our analysis can trade precision for speed without sacrificing correctness: if the analysis of a call to a specific callee requires too much time, the analysis can treat that callee as unanalyzable. The results of our analysis enable standard program optimizations like the stack allocation of local objects. More interestingly, this dissertation explains how to extend the analysis to detect pure methods.
(cont.) Our analysis supports a flexible definition of method purity: a method is pure if it does not mutate any object that exists in the program state before the start of the method. Therefore, our analysis allows pure methods to allocate and mutate temporary objects (e.g., iterators) and/or construct complex object structures and return them as a result.
by Alexandru D. Sălcianu.
Ph.D.
Hedén, Isac. "Russell’s hypersurface from a geometric point of view." Licentiate thesis, Uppsala universitet, Algebra, geometri och logik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-144688.
Повний текст джерелаGutzmann, Tobias. "Benchmarking Points-to Analysis." Doctoral thesis, Linnéuniversitetet, Institutionen för datavetenskap (DV), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-25298.
Повний текст джерелаLejemble, Thibault. "Analyse multi-échelle de nuage de points." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30184.
Повний текст джерела3D acquisition techniques like photogrammetry and laser scanning are commonly used in numerous fields such as reverse engineering, archeology, robotics and urban planning. The main objective is to get virtual versions of real objects in order to visualize, analyze and process them easily. Acquisition techniques become more and more powerful and affordable which creates important needs to process efficiently the resulting various and massive 3D data. Data are usually obtained in the form of unstructured 3D point cloud sampling the scanned surface. Traditional signal processing methods cannot be directly applied due to the lack of spatial parametrization. Points are only represented by their 3D coordinates without any particular order. This thesis focuses on the notion of scale of analysis defined by the size of the neighborhood used to locally characterize the point-sampled surface. The analysis at different scales enables to consider various shapes which increases the analysis pertinence and the robustness to acquired data imperfections. We first present some theoretical and practical results on curvature estimation adapted to a multi-scale and multi-resolution representation of point clouds. They are used to develop multi-scale algorithms for the recognition of planar and anisotropic shapes such as cylinders and feature curves. Finally, we propose to compute a global 2D parametrization of the underlying surface directly from the 3D unstructured point cloud
Pearce, David James. "Some directed graph algorithms and their application to pointer analysis." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417921.
Повний текст джерелаBen, Cheikh Bassem. "Morphologie mathématique sur les graphes pour la caractérisation de l’organisation spatiale des structures histologiques dans les images haut-contenu : application au microenvironnement tumoral dans le cancer du sein." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066286/document.
Повний текст джерелаOne of the most challenging problems in histological image analysis is the evaluation of the spatial organizations of histological structures in the tissue. In fact, histological sections may contain a very large number of cells of different types and irregularly distributed, which makes their spatial content indescribable in a simple manner. Graph-based methods have been widely explored in this direction, as they are effective representation tools having the expressive ability to describe spatial characteristics and neighborhood relationships that are visually interpreted by the pathologist. We can distinguish three main families of graph-based methods used for this purpose: syntactic structure analysis, network analysis and spectral analysis. However, another distinctive set of methods based on mathematical morphology on graphs can be additionally developed for this issue. The main goal of this dissertation is the development of a framework able to provide quantitative evaluation of the spatial arrangements of histological structures using graph-based mathematical morphology
Mellado, Nicolas. "Analysis of 3D objects at multiple scales : application to shape matching." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14685/document.
Повний текст джерелаOver the last decades, the evolution of acquisition techniques yields the generalization of detailed 3D objects, represented as huge point sets composed of millions of vertices. The complexity of the involved data often requires to analyze them for the extraction and characterization of pertinent structures, which are potentially defined at multiple scales. Amongthe wide variety of methods proposed to analyze digital signals, the scale-space analysis istoday a standard for the study of 2D curves and images. However, its adaptation to 3D dataleads to instabilities and requires connectivity information, which is not directly availablewhen dealing with point sets.In this thesis, we present a new multi-scale analysis framework that we call the GrowingLeast Squares (GLS). It consists of a robust local geometric descriptor that can be evaluatedon point sets at multiple scales using an efficient second-order fitting procedure. We proposeto analytically differentiate this descriptor to extract continuously the pertinent structuresin scale-space. We show that this representation and the associated toolbox define an effi-cient way to analyze 3D objects represented as point sets at multiple scales. To this end, we demonstrate its relevance in various application scenarios.A challenging application is the analysis of acquired 3D objects coming from the CulturalHeritage field. In this thesis, we study a real-world dataset composed of the fragments ofthe statues that were surrounding the legendary Alexandria Lighthouse. In particular, wefocus on the problem of fractured object reassembly, consisting of few fragments (up to aboutten), but with missing parts due to erosion or deterioration. We propose a semi-automaticformalism to combine both the archaeologist’s knowledge and the accuracy of geometricmatching algorithms during the reassembly process. We use it to design two systems, andwe show their efficiency in concrete cases
Zhang, Kun. "Dynamic pointer tracking and its applications." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33936.
Повний текст джерелаGutzmann, Tobias. "Comparison of Points-to Analyses." Thesis, Växjö University, School of Mathematics and Systems Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-2401.
Повний текст джерелаPoints-to analysis is a static program analysis which computes possible reference relations between different parts of a program. It serves as input to many high-level analyses. Points-to analyses differ, among others, in flow- and context-sensitivity, program representation, and object abstraction. Most program representations used for points-to analysis are sparse representations which abstract from, e.g., primitive data types and intra-procedural control-flow. Thus, a certain degree of information is sacrificed for compact program representation, which results in scalable performance. In this thesis, we present a framework which allows building different versions of Points-to SSA (P2SSA), a sparse, Memory SSA based program representation. Distinct instantiations of P2SSA contain different levels of abstraction from a program's full representation. We present another framework which allows running Points-to analyses on these program representations. We use these two frameworks to instantiate different versions of P2SSA and compare them in terms of analysis precision and execution time.
Bonthonneau, Yannick. "Résonances du laplacien sur les variétés à pointes." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112141/document.
Повний текст джерелаIn this thesis, we study the resonances of the Laplace operator on cusp manifolds. They are manifolds whose ends are real hyperbolic cusps. The resonances were introduced by Selberg in the 50's for the constant curvature cusp surfaces. Their definition was later extended to the case of variable curvature by Lax and Phillips. The resonances are the poles of a meromorphic family of generalized eigenfunctions of the Laplace operator. They are associated to the continuous spectrum of the Laplace operator. To analyze this continuous spectrum, different directions of research are investigated.On the one hand, we obtain results on the localization of resonances. In particular, if the curvature is negative, for a generic set of metrics, they split into two sets. The first one is included in a band near the spectrum. The other is composed of resonances that are far from the spectrum. This leaves a log zone without resonances. On the other hand, we study the microlocal measures associated to certain sequences of spectral parameters. In particular we show that for some sequences of parameters that converge to the spectrum, but not too fast, the associated microlocal measure has to be the Liouville measure. This property holds when the curvature is negative
Späth, Johannes [Verfasser]. "Synchronized pushdown systems for pointer and data-flow analysis / Johannes Späth." Paderborn : Universitätsbibliothek, 2019. http://d-nb.info/1182422713/34.
Повний текст джерелаGutzmann, Tobias. "Towards a Gold Standard for Points-to Analysis." Licentiate thesis, Växjö University, School of Mathematics and Systems Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-7381.
Повний текст джерелаPoints-to analysis is a static program analysis that computes reference informationfor a given input program. It serves as input to many client applicationsin optimizing compilers and software engineering tools. Unfortunately, the Gold Standard – i.e., the exact reference information for a given program– is impossible to compute automatically for all but trivial cases, and thus, little can been said about the accuracy of points-to analysis.
This thesis aims at paving the way towards a Gold Standard for points-to analysis. For this, we discuss theoretical implications and practical challenges that occur when comparing results obtained by different points-to analyses. We also show ways to improve points-to analysis by different means, e.g., combining different analysis implementations, and a novel approach to path sensitivity.
We support our theories with a number of experiments.
Middleton, Neil 1977. "Fading points." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81476.
Повний текст джерелаHaouas, Nabiha. "Wind energy analysis and change point analysis." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22554.
Повний текст джерелаThe wind energy, one of the most competitive renewable energies, is considered as a solution which remedies the inconveniences of the fossil energy. For a better management and an exploitation of this energy, forecasts of its production turn out to be necessary. The methods of forecasts used in the literature allow only a forecast of the annual mean of this production. Certain recent works propose the use of the Central Limit Theorem (CLT), under not classic hypotheses, for the estimation of the mean annual production of the wind energy as well as its variance for a single turbine. We propose in this thesis, an extension of these works in a wind farm by relaxation of the hypothesis of stationarity the wind speed and the power production, supposing that the latter are seasonal. Under this hypothesis the quality of the annual forecast improves considerably. We also suggest planning the wind power production during four seasons of the year. The use of the fractal model, allows us to find a "natural" division of the series of the wind speed to refine the estimation of the wind production by detecting abrupt change points. Statistical tools of the change points detection and the estimation of fractal models are presented in the last two chapters
Zhou, Huajun. "Multivariate compound point processes with drifts." Online access for everyone, 2006. http://www.dissertations.wsu.edu/Dissertations/Summer2006/h%5Fzhou%5F051606.pdf.
Повний текст джерелаMisner, Scottie, and Carol Curtis. "HACCP - Hazard Analysis Critical Control Points." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/146434.
Повний текст джерелаHACCP, pronounced has-up, is a food safety self-inspection system that combines up-to-date technical information with step-by-step procedures to evaluate and monitor the flow of food throughout a food establishment from receiving to service. This publication introduces this system to readers and outlines 6 simple HACCP principles to reduce the occurrence of food-borne illness at home.
MORGERA, ANDREA. "Dominant points detection for shape analysis." Doctoral thesis, Università degli Studi di Cagliari, 2012. http://hdl.handle.net/11584/266073.
Повний текст джерелаSerna, Morales Andrés Felipe. "Analyse sémantique de nuages de points 3D dans le milieu urbain : sol, façades, objets urbains et accessibilité." Thesis, Paris, ENMP, 2014. http://www.theses.fr/2014ENMP0052/document.
Повний текст джерелаMost important cities in the world have very detailed 2D urban plans of streets and public spaces.These plans contain information about roads, sidewalks, facades and urban objects such as lampposts, traffic signs, bollards, trees, among others.Nowadays, several local authorities, national mapping agencies and private companies have began to consider justifiable including 3D information, navigation options and accessibility issues into urban maps.Compared to the first 3D scanning systems 30 years ago, current laser scanners are cheaper, faster and provide more accurate and denser 3D point clouds.Urban analysis from these data is difficult and tedious, and existing semi-automatic methods may not be sufficiently precise nor robust.In that sense, automatic methods for 3D urban semantic analysis are required.This thesis contributes to the field of semantic analysis of 3D point clouds from urban environments.Our methods are based on elevation images and illustrate how mathematical morphology can be exploited to develop a complete 3D processing chain including six main steps:i)~filtering and preprocessing;ii)~ground segmentation and accessibility analysis;iii)~facade segmentation,iv)~object detection;v)~object segmentation;and, vi)~object classification.Additionally, we have worked on the integration of our results into a large-scale production chain. In that sense, our results have been exported as 3D point clouds for visualization and modeling purposes and integrated as shapefiles into Geographical Information Systems (GIS).Our methods have been qualitative and quantitative tested in several databases from the state of the art and from TerraMobilita project.Our results show that our methods are accurate, fast and outperform other works reported in the literature on the same databases.Conclusions and perspectives for future work are discussed as well
Soon, Shih Chung. "On detection of extreme data points in cluster analysis." Connect to resource, 1987. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1262886219.
Повний текст джерелаSims, Elodie-Jane. "Analyse statique de pointeurs et logique de séparation." Palaiseau, Ecole polytechnique, 2007. http://www.theses.fr/2007EPXX0038.
Повний текст джерелаÅ, imÅ ek Alp. "Analysis of critical points for nonconvex optimization." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32108.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (leaves 121-125).
In this thesis, we establish sufficient conditions under which an optimization problem has a unique local optimum. Motivated by the practical need for establishing the uniqueness of the optimum in an optimization problem in fields such as global optimization, equilibrium analysis, and efficient algorithm design, we provide sufficient conditions that are not merely theoretical characterizations of uniqueness, but rather, given an optimization problem, can be checked algebraically. In our analysis we use results from two major mathematical disciplines. Using the mountain pass theory of variational analysis, we are able to establish the uniqueness of the local optimum for problems in which every stationary point of the objective function is a strict local minimum and the function satisfies certain boundary conditions on the constraint region. Using the index theory of differential topology, we are able to establish the uniqueness of the local optimum for problems in which every generalized stationary point (Karush-Kuhn-Tucker point) of the objective function is a strict local minimum and the function satisfies some non-degeneracy assumptions. The uniqueness results we establish using the mountain pass theory and the topological index theory are comparable but not identical.
(cont.) Our results from the mountain pass analysis require the function to satisfy less strict structural assumptions such as weaker differentiability requirements, but more strict boundary conditions. In contrast, our results from the index theory require strong differentiability and non-degeneracy assumptions on the function, but treat the boundary and interior stationary points uniformly to assert the uniqueness of the optimum under weaker boundary conditions.
by Alp Simsek.
M.Eng.
Jabbour, Chirelle. "Développement de l'ablation laser en champ proche couplée à l'ICPMS pour l'analyse sub-micrométrique d'échantillons solides." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066282/document.
Повний текст джерелаA near field laser ablation method was developed for chemical analysis of solid samples at sub-micrometric scale. This analytical technique combines a nanosecond laser Nd:YAG, an Atomic Force Microscope (AFM), and an inductively coupled plasma mass spectrometer (ICPMS). In order to improve the spatial resolution of the laser ablation process, the near-field enhancement effect was applied by illuminating, by the laser beam, the apex of the AFM conductive sharp tip maintained at a few nanometers (5 to 30 nm) above the sample surface. The interaction between the illuminated tip and the sample surface enhances locally the incident laser energy and leads to the ablation process. By applying this technique to conducting gold and tantalum samples, and semiconducting silicon sample, a lateral resolution of 100 nm and depths of a few nanometers were demonstrated. Two home-made numerical codes have enabled the study of two phenomena occurring around the tip: the enhancement of the laser electrical field by tip effect, and the induced laser heating at the sample surface. The influence of the main operating parameters on these two phenomena, amplification and heating, was studied. An experimental multi-parametric study was carried out in order to understand the effect of different experimental parameters (laser fluence, laser wavelength, number of laser pulses, tip-to-sample distance, sample and tip nature) on the near-field laser ablation efficiency, crater dimensions and amount of ablated material
Edvinsson, Marcus. "Towards a Framework for Static Analysis Based on Points-to Information." Licentiate thesis, Växjö University, School of Mathematics and Systems Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1687.
Повний текст джерелаStatic analysis on source code or binary code retrieves information about a software program. In object-oriented languages, static points-to analysis retrieves information about objects and how they refer to each other. The result of the points-to analysis is traditionally used to perform optimizations in compilers, such as static resolution of polymorphic calls, and dead-code elimination. More advanced optimizations have been suggested specifically for Java, such as synchronization removal and stack-allocation of objects. Recently, software engineering tools using points-to analysis have appeared aiming to help the developer to understand and to debug software. Altogether, there is a great variety of tools that use or could use points-to analysis, both from academia and from industry.
We aim to construct a framework that supports the development of new and the improvement of existing clients to points-to analysis result. We present two client analyses and investigate the similarities and differences they have. The client analyses are the escape analysis and the side-effects analysis. The similarities refer to data structures and basic algorithms that both depend on. The differences are found in the way the two analyses use the data structures and the basic algorithms. In order to reuse these in a framework, a specification language is needed to reflect the differences. The client analyses are implemented, with shared data-structures and basic algorithms, but do not use a separate specification language.
The framework is evaluated against three goal criteria, development speed, analysis precision, and analysis speed. The development speed is ranked as most important, and the two latter are considered equally important. Thereafter we present related work and discuss it with respect to the goal criteria.
The evaluation of the framework is done in two separate experiments. The first experiment evaluates development speed and shows that the framework enables higher development speed compared to not using the framework. The second experiment evaluates the precision and the speed of the analyses and it shows that the different precisions in the points-to analysis are reflected in the precisions of the client analyses. It also shows that there is a trade-off between analysis precision and analysis speed to consider when choosing analysis precision.
Finally, we discuss four alternative ways to continue the research towards a doctoral thesis.
Lindahl, Karl-Olof. "On the linearization of non-Archimedean holomorphic functions near an indifferent fixed point." Doctoral thesis, Växjö : Växjö University Press, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-1713.
Повний текст джерелаLartey, Ebenezer. "Change-point analysis using score functions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0009/NQ40269.pdf.
Повний текст джерелаSoale, Abdul-Nasah. "Spatio-Temporal Analysis of Point Patterns." Digital Commons @ East Tennessee State University, 2016. https://dc.etsu.edu/etd/3120.
Повний текст джерелаMenin, Aline. "eSTIMe : un environnement de visualisation pour l'analyse multi-points de vue des mobilités quotidiennes." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALS010.
Повний текст джерелаThe research field of urban mobility aims at the observation and design of human trips within an urban environment, which information supports decision-making and problem solving within public policies. In this context, there are many experts -- not necessarily transportation specialists -- that need to handle more or less standardized urban data to extract synthetic and easily exploitable knowledge. Hence, public transportation agencies commonly conduct trip-based surveys to collect information about day-to-day travel of the population within a particular territory (i.e. where and when we travel), resulting in large and complex datasets which analysis requires crossing spatial, temporal, thematic and socioeconomic dimensions to enable discoveries of daily urban mobility patterns. This way, information visualization is a suitable approach to support the analysis of urban mobility data, since analysts do not have to learn sophisticated methods to interpret the data visualizations that come to reinforce their cognition and enable the discovery of unstructured insights within the data.Thereby, we propose a visualization framework to assist the analysis of urban mobility through indicators describing complementary objects of interest within the data that allow to address three categories of questions underlying the urban mobility phenomenon. A first question seeks to understand the daily traveling routine of a population and the resulting processes of exchange between places, which can be studied through the exploration of amounts, modalities, direction, and variation of travel flows and trips according to different socioeconomic aspects of individuals and land types. A second questioning concerns the temporal variation of population presence throughout a territory, which allows to understand the use of distinct locations by taking into account the socioeconomic characteristics of the people visiting it and the activities they carry out there. The third question seeks to explain the individuals' need of traveling by studying the temporal ordering of trips and activities of individuals (i.e. daily trajectories) within the spatial context of the territory.Our framework supports the derivation and visual exploration of indicators describing the territory, travel flows and trips, and daily trajectories, over multiple spatio-temporal resolutions and thematic attributes. Our visualization interface allows to disperse visual representations over multiple analytical displays, enabling users to customize the spatial arrangement of visualizations and indicators in meaningful ways according to the ongoing analysis. Furthermore, we propose a movement-based interaction based on the tilting of a tablet that allows to explore the temporal variation of indicators leveraging tactile and tangible input. The conception of our visualization approach followed an interactive evaluation process that consists of successive user-based evaluations aiming to refine a prototype in order to achieve user performance and satisfaction
Lawson, Andrew B. "The statistical analysis of point events associated with a fixed point." Thesis, University of St Andrews, 1991. http://hdl.handle.net/10023/7294.
Повний текст джерелаPérez, Aros Pedro Antonio. "Subdifferential calculus in the framework of Epi-pointed variational analysis, integral functions, and applications." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/150762.
Повний текст джерелаLa investigación de esta tesis es presentada en seis capítulos, desde el Capítulo 2 al Capítulo 7. El capítulo 2 proporciona una demostración directa de una caracterización reciente de convexidad dada en el marco de los espacios de Banach en [J. Saint Raymond, J. Convexo no lineal Anal., 14 (2013), pp. 253-262]. Estos resultados también extienden esta caracterización a espacios localmente convexos bajo condiciones más débiles y se basa en la definición de una función epi-puntada. El Capítulo 3 proporciona una extensión del Teorema Br{\o}ndsted-Rockafellar, y algunas de sus importantes consecuencias, a las funciones convexas semicontinuas inferiores definidas en espacios localmente convexos. Este resulado es demostrado usando un nuevo enfoque basado en un principio variacional simple, que también permite recuperar los resultados clásicos de una manera natural. El Capítulo 4 continúa el estudio de la epi-puntadas no convexas, bajo una definición general de subdiferencial. Este trabajo proporciona una generalización del teorema del valor medio de Zagrodny. Posteriormente este resultado es aplicado a los problemas relacionados con la integración de subdiferenciales y caracterización de la convexidad en términos de la monotonicidad del subdiferencial. El Capítulo 5 proporciona una fórmula general para $\epsilon$-subdiferencial de una función integral convexa en términos de $\epsilon$-subdiferenciales de la funcion integrante. Bajo condiciones de calificación, esta fórmula recupera los resultados clásicos en la literatura. Además, este trabajo investiga caracterizaciones del subdiferencial en términos de selecciones medibles que convergen al punto de interés. El Capítulo 6 proporciona fórmulas secuenciales para subdiferenciales bornológicos de un funcional integral no convexo. También son presentadas fórmulas exactas para el subiferencial Limiting/Mordukhovich, el subdiferencial Geometrico de Ioffe y el subdiferencial de Clarke-Rockafellar. El Capítulo 7 proporciona fórmulas para el subdiferencial de funciones de probabilidad bajo distribuciones Gaussianas. En este trabajo la variables de decisión esta tomada en un espacio infinito dimensional. Estas fórmulas se basan en la descomposición esférico-radial de vectores aleatorios Gaussianos.
CONICYT-PCHA/doctorado Nacional / 2014-21140621 y CMM - Conicyt PIA AFB170001
Solà, Belda Carles. "Economic action and reference points: an experimental analysis." Doctoral thesis, Universitat Autònoma de Barcelona, 2001. http://hdl.handle.net/10803/4019.
Повний текст джерелаThis thesis analyzes several aspects of the motivations that drive individuals and their implications in economic processes. In particular, I analyze in detail normative criteria that individuals apply such as those of fairness and reciprocity. In the Introduction I define the use I make of the concepts of reciprocity, fairness, menu dependence and reference points that will be used in the course of the different chapters. The methodology developed in this thesis employs some theoretical models on the behavior of individuals in strategic interactions, using elements of Game Theory and Experimental Economics. In the second chapter, "On Rabin's Concept of Fairness and the Private Provision of Public Goods", I analyze in detail the implications of Rabin's (1993) theory of individual behavior and its implications. This model introduces, apart from the economic payoffs that the individual obtains in a strategic interaction, psychological phenomena, mainly a sense of fairness in the relation with other agents. In this chapter I analyze the implications of an extended version of this theory to a field where there exists a vast amount of experimental evidences contradicting the behavior predicted by standard game theoretical models. I show that Rabin's theory is consistent with one piece of evidence repeatedly found in experiments, the so call "splitting". I also show that the model is inconsistent with another piece of evidence in the field, the "MPCR effect". The third chapter, "Reference Points and Negative Reciprocity in Simple Sequential Games", analyzes the influence that certain payoff vectors, the "reference points", not attainable at that time, may have on the preference by other payoff vectors. This is connected with the attribution of certain intentions to the other players when selecting some courses of action. By using experiments I obtain results that confirm the importance of these reference points in the reciprocity considerations that individuals apply. Chapter four , "Distributional Concerns and Reference Points", analyzes some aspects that may interact with the reference points in the attributions of intentions. These aspects are the payoff to the agent from a given course of action, his/her relative payoff and the joint payoff. The experimental results show that none of these elements is able to explain by itself the results. Finally, the fifth chapter, "The Sequential Prisoner's Dilemma Game: Reciprocity and Group Size Effects" analyzes how aspects of the individual motivations interact with social aspects. In particular it studies how the reactions of individuals change with the dimension of the group in certain processes. The experimental results obtained show that in the prisoner's dilemma game (two-person and three-person games) the behavior of subjects may be consistent with reciprocity considerations and with inequality aversion considerations.
Connolley, Michael J. (Michael Joseph). "An empirical study of function points analysis reliability." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/37704.
Повний текст джерелаMoloi, K. D., and P. C. N. Groenewald. "Bayesian analysis of change-points in poisson processes." Interim : Interdisciplinary Journal, Vol 3, Issue 2: Central University of Technology, Free State, Bloemfontein, 2004. http://hdl.handle.net/11462/449.
Повний текст джерелаChange-point analysis deals with the situation where an abrupt change has possibly taken place in the underlying mechanism that generates random variables. In a parametric setting, this means a change in the parameters of the underlying distribution. The interest is in whether such a change has actually taken place, and if it has, at which point in time. Also, there may have been more than one change during the period of interest. Application of change-point analysis is wide, but is particularly relevant in finance, the environment and medicine. The violability of markets may change abruptly, the rate and intensity of natural phenomena may change, or the effect of treatments in clinical trails may be studied. The literature on change-point problems is, by now, enormous. In this study we consider only the so-called non-sequential or fixed sample size version, although an informal sequential procedure, which follows from Smith (1975), is a routine consequence. Still, literature is substantial and our focus is on a fully Bayesian parametric approach. Use of the Bayesian framework for inference with regard to the change-point dates to work by Chernoff and Zacks (1964). Smith (1975) presents the Bayesian formulation for a finite sequence of independent observations. See also Zacks (1983). In our study we will consider only Poisson sequences and will address four situations: 1) When it is assumed that there is exactly one change-point, and proper priors are used. This can be generalised to more than one change-point. If the number of change-points is fixed and known, improper priors are also valid as will be explained later. 2) When there is a fixed number of change-points, the Markov Chain Monte Carlo method of Chib (1998) is useful, especially for large samples and multiple changepoints This approach will be described and applied. 3) When the number of change-points is unknown, and we want posterior probability distributions of the number of change-points, only proper priors are valid for calculating Bayes factors. In the case when no prior information is available, improper priors will cause the Bayes factor to have an indeterminate constant. In this case we apply the Fractional Bayes factor method of O’Hagan (1995). 4) When the data consists of multiple sequences, it is called multi-path changepoint analysis, and the distribution from which the change-points are drawn is of interest. Here the posterior distributions of parameters are estimated by MCMC methods. All the techniques are illustrated using simulated and real data sets.
Allali, Sébastien. "Le freudo-marxisme : analyse des points de rupture." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC066.
Повний текст джерелаThe fathers of Freudo-marxism, Otto Gross and Wilhelin Reich, walked away from many of Freud's ideas ; this forced him to distance himself from his disciples, whom he now deemed undesirable. The breaking points concern the etiology of neuroses, the possibility of a « popular psychotherapy », the cure's modalities, the relationship between psychoanalysis and politics, family, education, religion, work, or artistic creation. However, Gross and Reich's thoughts have had a significant role, not only in the history of psychoanalysis, but also in the very construction of Freudian thought. They were the first to emphasise the fundamental part of both the economic misery and the sexual one in the origin of neuroses. The core of the theoretical and clinical disagreement is anthropological: Gross and Reich, who are both Rousseausist, think that man is intrinsically good, and that his aggressivity is the result of a social disharmony. Freud, on the contrary, believes in the existence of a death wish, the denial of which provides Freudo-marxism with its cornerstone
Ding, Xinli. "Generalized critical points analysis of acetylene vibrational dynamics /." view abstract or download file of text, 2004. http://wwwlib.umi.com/cr/uoregon/fullcit?p3120621.
Повний текст джерелаTypescript. Includes vita and abstract. Includes bibliographical references (leaves 145-154). Also available for download via the World Wide Web; free to University of Oregon users.
Walter, Nicolas. "Détection de primitives par une approche discrète et non linéaire : application à la détection et la caractérisation de points d'intérêt dans les maillages 3D." Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00808216.
Повний текст джерелаTrickey, Robert V. "Critical points of discrete potentials in the plane and in space." Thesis, University of Nottingham, 2008. http://eprints.nottingham.ac.uk/14362/.
Повний текст джерелаKovalov, Ievgen. "Context-sensitive Points-To Analysis : Comparing precision and scalability." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-18225.
Повний текст джерелаRobin-Clerc, Michèle. "Une analyse architecturale et urbaine de l’agglomération de Pointe-à-Pitre et des Abymes en Guadeloupe du point de vue des risques majeurs et du développement durable." Paris 4, 2006. https://hal.archives-ouvertes.fr/tel-03095171.
Повний текст джерелаThe urban zone of Pointe-à-Pitre in Guadeloupe, located in the middle of a concentration of 132 000 inhabitants, has many functions : political, administrative and commercial. Its tourist importance is essential for Guadeloupe. At last but not least, the place of Pointe-à-Pitre in the collective unconscious is predominant, it has so a first level social function. Today, the urban morphology and typology of the town is not able to face a seismic disaster. Its vulnerability to the others major risks is less important. I made a deep historic study that, with the help of plans, maps and texts, allowed me to recount the urban morphology and typology history of the urban zone, through the main major risks that have affected and can affect still now that centre : earthquakes, cyclones and fires. I analyse too, facing major risks, the public highways and all the infrastructures of the territory. The existing references on the seismic activity to the Antilles relate only to approximately 3 centuries. Thus, many uncertainties remain on the seismic risk to which Guadeloupe is subjected. One proposes here to analyze these various uncertainties in order to permit a finer approach of the seismic risk for that territory. The studied elements permit to understand better the vulnerability of that centre to the major risks