Дисертації з теми "Markov Equivalence"
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Louis, Pierre-Yves. "Ergodicity of PCA : equivalence between spatial and temporal mixing conditions." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2006/658/.
Повний текст джерелаBIALAS, CIEZ LEOKADIA. "Sur l'inegalite de markov pour les compacts. Cas des ensembles de cantor - problemes de capacite logarithmique. Conjecture de wilhelmsen - equivalence avec l'inegalite de division." Paris 11, 1999. http://www.theses.fr/1999PA112017.
Повний текст джерелаHarlé, Flore. "Détection de ruptures multiples dans des séries temporelles multivariées : application à l'inférence de réseaux de dépendance." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT043/document.
Повний текст джерелаThis thesis presents a method for the multiple change-points detection in multivariate time series, and exploits the results to estimate the relationships between the components of the system. The originality of the model, called the Bernoulli Detector, relies on the combination of a local statistics from a robust test, based on the computation of ranks, with a global Bayesian framework. This non parametric model does not require strong hypothesis on the distribution of the observations. It is applicable without modification on gaussian data as well as data corrupted by outliers. The detection of a single change-point is controlled even for small samples. In a multivariate context, a term is introduced to model the dependencies between the changes, assuming that if two components are connected, the events occurring in the first one tend to affect the second one instantaneously. Thanks to this flexible model, the segmentation is sensitive to common changes shared by several signals but also to isolated changes occurring in a single signal. The method is compared with other solutions of the literature, especially on real datasets of electrical household consumption and genomic measurements. These experiments enhance the interest of the model for the detection of change-points in independent, conditionally independent or fully connected signals. The synchronization of the change-points within the time series is finally exploited in order to estimate the relationships between the variables, with the Bayesian network formalism. By adapting the score function of a structure learning method, it is checked that the independency model that describes the system can be partly retrieved through the information given by the change-points, estimated by the Bernoulli Detector
Craft, Colin N. "Applications of a Model-Theoretic Approach to Borel Equivalence Relations." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1538768/.
Повний текст джерелаBörjesson, Mattias. "Från likvärdighet till marknad : En studie av offentligt och privat inflytande över skolans styrning i svensk utbildningspolitik 1969-1999." Doctoral thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-50648.
Повний текст джерелаRebelo, Diogo Bebiano de Sá Viana. "Assessing the performance of private equity investments." reponame:Repositório Institucional do FGV, 2014. http://hdl.handle.net/10438/13462.
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This study presents an alternative investment projection model to estimate the future values of Private Equity (PE) investments. The performance of PE investments is assessed by analyzing the risk-return relationship relative to simulated Public Market (PM) investments that mimic the cash flow patterns of PE investments. The model allows for a quantified analysis of the underlying inputs that outline the PE performance and risks, and accounts for survivorship bias. These inputs include the fund manager’s decisions regarding the selection, leverage, size, duration and timing of investment and divestments.
Este estudo apresenta um modelo de projeção de investimentos alternativos para estimar os valores futuros de investimentos de Private Equity (PE). O desempenho dos investimentos de PE é avaliado pelo risco-retorno em relação a investimentos de Mercados Públicos simulados de forma a imitar os padrões de fluxo de caixa dos investimentos de PE. O modelo permite uma análise quantificada dos inputs que caraterizam o desempenho e riscos de investimentos de PE, e tem em consideração rácios de sobrevivência (survivorship bias) destes investimentos. Estes inputs incluem decisões dos gestores do fundo em relação à seleção, alavancagem, tamanho, duração e timings dos investimentos e desinvestimentos.
Simmons, Nicholas A. "An investigation into the robustness of willingness to pay for non-market goods in relation to subjective well-being." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/23010.
Повний текст джерелаAlou, Ramis Damià. "El concepto de marcador estructural: su aplicación en el discurso poético de Phipil Larkin." Doctoral thesis, Universitat Pompeu Fabra, 2008. http://hdl.handle.net/10803/7588.
Повний текст джерелаPosteriormente, se aplica el análisis basado en los marcadores estructurales a 21 poemas de Philip Larkin, seleccionados por temas. El producto práctico de este análisis es la traducción al castellano de cada poema, acompañada de un mapa donde figuran los rasgos que forman la estructura; y el producto teórico una caracterización estilística de la poesía de Larkin, representada en un mapa donde figuran sus principales rasgos estilístico.
También se aporta un esbozo de crítica de la traducción basado en dicha herramienta.
This dissertation consists of two parts. The first one is an attempt to define and delimit the concept of structural marker as a tool of text analysis applied to poetic translation. After dealing with the specificity of the poetic text and re-examining the main theories about poetic translation, structural markers are identified with the stylistic features that mark the semantic frame of the text.
Afterwards, we apply the analysis based on the structural markers to 21 poems by Philip Larkin, put into groups by themes. The practical outcome of this analysis the translation to Spanish of this poems, accompanied with a map where the main structural features can be seen; and the theoretical outcome is a stylistic characterisation of Larkin's poetry, which we represent in a stylistic map.
We also find an outline of translation criticism based in this tool called structural marker.
Mikutytė, Lyra. "Kiekybinių apribojimų ir jiems lygiaverčio poveikio priemonių draudimas, užtikrinantis laisvą prekių judėjimą EB." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070104_144837-36676.
Повний текст джерелаEhrenberger, Patrik. "Trh administrativních prostor." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-199533.
Повний текст джерелаBalasubramanian, Vijay. "Equivalence and Reduction of Hidden Markov Models." 1993. http://hdl.handle.net/1721.1/6801.
Повний текст джерелаDuarte, Ana Sofia da Silva. "Materialização à medida de vistas multidimensionais de dados." Master's thesis, 2012. http://hdl.handle.net/1822/27823.
Повний текст джерелаCom o emergir da era da informação foram muitas as empresas que recorreram a data warehouses para armazenar a crescente quantidade de dados que dispõem sobre os seus negócios. Com essa evolução dos volumes de dados surge também a necessidade da sua melhor exploração para que sejam úteis de alguma forma nas avaliações e decisões sobre o negócio. Os sistemas de processamento analítico (ou OLAP – On-Line Analytical Processing) vêm dar resposta a essas necessidades de auxiliar o analista de negócio na exploração e avaliação dos dados, dotando-o de autonomia de exploração, disponibilizando-lhe uma estrutura multiperspetiva e de rápida resposta. Contudo para que o acesso a essa informação seja rápido existe a necessidade de fazer a materialização de estruturas multidimensionais com esses dados já pré-calculados, reduzindo o tempo de interrogação ao tempo de leitura da resposta e evitando o tempo de processamento de cada query. A materialização completa dos dados necessários torna-se na prática impraticável dada a volumetria de dados a que os sistemas estão sujeitos e ao tempo de processamento necessário para calcular todas as combinações possíveis. Dado que o analista do negócio é o elemento diferenciador na utilização efetiva das estruturas, ou pelo menos aquele que seleciona os dados que são consultados nessas estruturas, este trabalho propõe um conjunto de técnicas que estudam o comportamento do utilizador, de forma a perceber o seu comportamento sazonal e as vistas alvo das suas explorações, para que seja possível fazer a definição de novas estruturas contendo as vistas mais apropriadas à materialização e assim melhor satisfaçam as necessidades de exploração dos seus utilizadores. Nesta dissertação são definidas estruturas que acolhem os registos de consultas dos utilizadores e com esses dados são aplicadas técnicas de identificação de perfis de utilização e padrões de utilização, nomeadamente a definição de sessões OLAP, a aplicação de cadeias de Markov e a determinação de classes de equivalência de atributos consultados. No final deste estudo propomos a definição de uma assinatura OLAP capaz de definir o comportamento OLAP do utilizador com os elementos identificados nas técnicas estudadas e, assim, possibilitar ao administrador de sistema uma definição de reestruturação das estruturas multidimensionais “à medida” da utilização feita pelos analistas.
With the emergence of the information era many companies resorted to data warehouses to store an increasing amount of their business data. With this evolution of data volume the need to better explore this data arises in order to be somewhat useful in evaluating and making business decisions. OLAP (On-Line Analytical Processing) systems respond to the need of helping the business analyst in exploring the data by giving him the autonomy of exploration, providing him with a multi-perspective and quick answer structure. However, in order to provide quick access to this information the materialization of multi-dimensional structures with this data already calculated is required, reducing the query time to the answer reading time and avoiding the processing time of each query. The complete materialization of the required data is practically impossible due to the volume of data that the systems are subjected to and due to the processing time needed to calculate all combinations possible. Since the business analyst is the differentiating element in the effective use of these structures, this work proposes a set of techniques that study the user‟s behaviour in order to understand his seasonal behaviour and the target views of his explorations, so that it becomes possible to define new structures containing the most appropriate views for materialization and in this way better satisfying the exploration needs of its users. In this dissertation, structures that collect the query records of the users will be defined and with this data techniques of identification of user profiles and utilization patterns are applied, namely the definition of OLAP sessions, the application of Markov chains and the determination of equivalence classes of queried attributes. In the end of this study, the definition of an OLAP signature capable of defining the OLAP behaviour of the user with the elements identified in the studied techniques will be proposed and this way allowing the system administrator a definition for restructuring of the multi-dimensional structures in “size” with the use done by the analysts.
Silva, Ricardo Manuel Arantes. "Definição e caracterização de assinaturas OLAP." Master's thesis, 2017. http://hdl.handle.net/1822/62494.
Повний текст джерелаAs assinaturas OLAP podem ser vistas como uma forma de caracterização de um dado perfil de exploração analítica. Porém, ao contrário de um perfil de exploração típico, uma assinatura OLAP não tem uma natureza estática. Uma assinatura OLAP congrega de uma forma única todos os elementos de informação recolhidos ao longo do tempo nas várias sessões de exploração OLAP desenvolvidas por um dado utilizador, caracterizando de uma forma bastante concreta esse utilizador ao longo do tempo. Num sistema OLAP as assinaturas podem ser utilizadas para traçar um perfil de exploração de dados de um dado utilizador, baseado nas queries que este coloca ao longo do tempo sobre um dado sistema de processamento analítico e dos seus hábitos e tendências de exploração. Através da análise das assinaturas OLAP podemos otimizar as estruturas multidimensionais – cubos - de um dado sistema analítico, de forma a reduzir o seu tamanho, guardando apenas informação relevante, e prever quais as operações que podem ser despoletadas a partir da ocorrência de uma dada querie. Desta forma é possível escolher a priori quais as partes do cubo que devem ser carregadas para memória ou aquelas que podem ser transferidas para a máquina do próprio utilizador. Tudo isto, para que seja possível minimizar a carga do servidor e reduzir o tráfego de dados no sistema de comunicação que suporta os processos de exploração analítica. Neste trabalho de dissertação exploraremos esta temática e definiremos um método sustentado para definição e manutenção de assinaturas OLAP.
OLAP signatures can be viewed as a way of characterizing one analytical exploration profile. However, unlike a typical scan profile, an OLAP signature does not have a static nature. An OLAP signature uniquely brings together all the information elements collected over time in the various OLAP exploration sessions developed by one user, characterizing that user in a very concrete way along the time. In an OLAP system the signatures can be used to trace a data exploration profile of a user, based on the queries that this one places along the time on an analytical processing system and its exploration habits and trends. Through the analysis of OLAP signatures we can optimize the multidimensional structures - cubes - of an analytical system, so as to reduce its size, keeping only relevant information, and predict which operations can be triggered from the occurrence of a specific query. In this way it is possible to choose primarily which parts of the cube should be loaded into memory or those that can be transferred to the user's own machine. With this we can minimize server load and reduce data traffic in the communication system that supports analytical scanning processes. In this dissertation we will explore this theme and define a sustained method for defining and maintaining OLAP signatures.
Wen-GineWang and 王温淨. "Testing the Equivalence of the Fama-French Model and Its Applications in Taiwan Stock Market." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/tsujht.
Повний текст джерела國立成功大學
財務金融研究所
102
ABSTRACT In this research the three-factor Fama-French regression model (1992, 1993, 1995) is investigated, in which the factors include the market risk premium (MRP), small-minus-big risk premium (SMB) and high-minus-low risk premium (HML) associated with the regression parameters , and its extensions to four-factor and eight-factor models. It is known that the MRP, SMB and HML can affect a stock portfolio’s return. Based on the Fama-French model, six types of stock portfolios (namely, BH, BL, BM, SH, SL, and SM) are created according to company size (Small or Big) and the ratio of book-to-market equity (High, Medium or Low). Using the data from the Taiwan Economic Journal (TEJ), a traditional multiple regression equation is proposed, which can explain the returns of six types of portfolios (BH, BL, BM, SH, SL, and SM) with R-square ranging from 93% to 97% based on these three explanatory factors. This study also tests the equivalence of the regression parameters using two one-sided tests (TOST) for all six types of portfolios under each factor using the TEJ data, the economically meaningful equivalence margins of these regression parameters are selected by investors in advance in order to achieve their investment goals. Similar analysis is made for four-factor and eight-factor models. The findings of this work can help investors better understand the common variations of stock portfolio returns, and thus make better decisions.
Houra, Aleš. "Srovnávací překladová studie českých překladových ekvivalentů pragmatických částic now a well v elektronických paralelních textech." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-332173.
Повний текст джерелаMachovičová, Tereza. "Kritérium "přístupu na trh" v rámci problematiky vnitřního trhu." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-379130.
Повний текст джерела(8741097), Ritwik Bandyopadhyay. "ENSURING FATIGUE PERFORMANCE VIA LOCATION-SPECIFIC LIFING IN AEROSPACE COMPONENTS MADE OF TITANIUM ALLOYS AND NICKEL-BASE SUPERALLOYS." Thesis, 2020.
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