Dissertations / Theses on the topic 'Graphical Modeler'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Graphical Modeler.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Morris, David Victor. "A new graphical user interface for a 3D topological mesh modeler." Texas A&M University, 2008. http://hdl.handle.net/1969.1/85977.
Full textLindén, Philip. "Improving accessibility to the bus service : Building an accessibility measurement tool in QGIS." Thesis, Umeå universitet, Institutionen för geografi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185145.
Full textSrogis, Andrius. "Automatizuotas grafinio modelio performulavimas į natūralią kalbą." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130826_150207-45443.
Full textThe graphical model architecture design is widely used for scientific and enterprise purposes. There are many languages concentrated on enterprise processes and static systems designing. One of the most popular modeling language (UML) is missing methodology and tools suitable for correct reformulation of graphical models (formulated by the UML) in natural language. The main purpose of the graphical model reformulation in natural language is to make models easier to understand for people whose are not specialized in UML. Methodology and tool which is capable of reformulating graphical models in natural language already exists, but it isn’t concentrated on UML or capable of reformulating static and dynamic processes. The main goal of this work is to define a methodology and implement a tool, which would be capable of translating the graphical UML model to a natural language text.
Cruz, Fernández Francisco. "Probabilistic graphical models for document analysis." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/399520.
Full textCurrently, more than 80% of the documents stored on paper belong to the business field. Advances in digitization techniques have fostered the interest in creating digital copies in order to solve maintenance and storage problems, as well as to have efficient ways for transmission and automatic extraction of the information contained therein. This situation has led to the need to create systems that can automatically extract and analyze this kind of information. The great variety of types of documents makes this not a trivial task. The extraction process of numerical data from tables or invoices differs substantially from a task of handwriting recognition in a document with annotations. However, there is a common link in the two tasks: Given a document, we need to identify the region where the information of interest is located. In the area of Document Analysis this process is called Layout Analysis, and aims at identifying and categorizing the different entities that compose the document. These entities can be text regions, pictures, text lines or tables, among others. This process can be done from two different approaches: physical or logical analysis. Physical analysis focus on identifying the physical boundaries that define the area of interest, whereas logical analysis also models information about the role and semantics of the entities within the scope of the document. To encode this information it is necessary to incorporate prior knowledge about the task into the analysis process, which can be introduced in terms of contextual relations between entities. The use of context has proven to be useful to reinforce the recognition process and improve the results on many computer vision tasks. It presents two fundamental questions: what kind of contextual information is appropriate, and how to incorporate this information into the model. In this thesis we study several ways to incorporate contextual information on the task of document layout analysis. We focus on the study of Probabilistic Graphical Models and other mechanisms for the inclusion of contextual relations applied to the specific tasks of region identification and handwritten text line segmentation. On the one hand, we present several methods for region identification. First, we present a method for layout analysis based on Conditional Random Fields for maximum a posteriori estimation. We encode a set of structural relations between different classes of regions on a set of features. Second, we present a method based on 2D-Probabilistic Context-free Grammars and perform a comparative study between probabilistic graphical models and this syntactic approach. Third, we propose a statistical approach based on the Expectation-Maximization algorithm devised to structured documents. We perform a thorough evaluation of the proposed methods on two particular collections of documents: a historical dataset composed of ancient structured documents, and a collection of contemporary documents. On the other hand, we present a probabilistic framework applied to the task of handwritten text line segmentation. We successfully combine the EM algorithm and variational approaches for this purpose. We demonstrate that the use of contextual information using probabilistic graphical models is of great utility for these tasks.
Melkersson, Oskar, and Adam Wretström. "Grafisk modellering som stöd i förstudiefasen : En aktionsforskning om hur grafiska modeller kan underlätta kommunikation mellan utvecklare ochanvändare i en förstudie." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-27734.
Full textPapadopoulos, Nicholas. "A 3-D computer modelled animation system, implemented in an object-oriented message-passing environment." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360489.
Full textMeruvia, Pastor Oscar Ernesto. "Frame coherent 3D stippling for non-photorealistic computer graphics." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=971456097.
Full textLohikoski, Håkansson Laura, and Elin Rudén. "Optimization of 3D Game Models : A qualitative research study in Unreal Development Kit." Thesis, Södertörns högskola, Institutionen för naturvetenskap, miljö och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-22822.
Full textMålet med vår studie var att se hur stor skillnad optimering av 3D-modeller i spel gör för att förbättra spelprestandan. Efter att ha utfört en pilotstudie beslutade vi oss för att använda en tidigare byggd 3D-scen för undersökningen i vår C-uppsats. Vi skapade två versioner av scenen i Unreal Development Kit, en där inga modeller var optimerade och den andra där vi optimerat modellerna. Vi skrev därefter ner statistik från de olika scenerna, nämligen draw calls, frame rate, millisecond per frame och visible static mesh elements liksom minnesanvändning. Efter att ha jämfört resultaten såg vi att det fanns en väsentlig skillnad mellan scenerna prestandamässigt. Både draw calls, frame rate och minnesanvändningen hade minskat efter optimeringen vilket ledde till att spelet kördes smidigare.
Santana, Murillo Vinícius Bento. "Desenvolvimento de sistema computacional via MATLAB/GUI (Graphical User Interface) para análise geometricamente não linear de estruturas." reponame:Repositório Institucional da UFOP, 2015. http://www.repositorio.ufop.br/handle/123456789/5463.
Full textSubmitted by Oliveira Flávia (flavia@sisbin.ufop.br) on 2015-05-20T20:14:24Z No. of bitstreams: 2 license_rdf: 22190 bytes, checksum: 19e8a2b57ef43c09f4d7071d2153c97d (MD5) DISSERTAÇÃO_SistemaComputacionalGráfico.pdf: 7158699 bytes, checksum: 95038dc4d47ce770d2d418b6065f18d5 (MD5)
Approved for entry into archive by Gracilene Carvalho (gracilene@sisbin.ufop.br) on 2015-05-22T14:56:03Z (GMT) No. of bitstreams: 2 license_rdf: 22190 bytes, checksum: 19e8a2b57ef43c09f4d7071d2153c97d (MD5) DISSERTAÇÃO_SistemaComputacionalGráfico.pdf: 7158699 bytes, checksum: 95038dc4d47ce770d2d418b6065f18d5 (MD5)
Made available in DSpace on 2015-05-22T14:56:03Z (GMT). No. of bitstreams: 2 license_rdf: 22190 bytes, checksum: 19e8a2b57ef43c09f4d7071d2153c97d (MD5) DISSERTAÇÃO_SistemaComputacionalGráfico.pdf: 7158699 bytes, checksum: 95038dc4d47ce770d2d418b6065f18d5 (MD5) Previous issue date: 2015
Com os avanços científicos e tecnológicos, o engenheiro estrutural passou a desenvolver e/ou ter acesso a programas computacionais que possibilitam análises numéricas mais avançadas. Isso vem proporcionando aumento da segurança e economia dos projetos. Para a concepção de estruturas mais esbeltas, a realização de análises não lineares geométricas, em que os efeitos de segunda ordem são explicitamente incluídos, torna-se cada vez mais comum. Nesse contexto, esta dissertação tem como objetivo avaliar o comportamento não linear geométrico estático de sistemas estruturais reticulados planos através do desenvolvimento e emprego de um sistema computacional gráfico interativo, denominado aqui AFA-OPSM (Advanced Frame Analysis - Ouro Preto School of Mines). Esse sistema utiliza os recursos de programação gráficos interativos (GUI) do software MATLAB, e apresenta, de forma acoplada, as etapas de pré-processamento, análise estrutural e pósprocessamento. Destaca-se ainda que ele é construído segundo o paradigma da programação orientada à objetos (POO), em que várias estratégias de solução não linear foram incorporadas. As formulações não lineares de elementos finitos são desenvolvidas considerando as teorias de treliças, de viga de Euler-Bernoulli e de Timoshenko, nos referenciais Lagrangiano total e co-rotacional. Os resultados numéricos obtidos, assim como os recursos gráficos interativos do AFA-OPSM, são avaliados através do estudo de problemas estruturais clássicos de estabilidade encontrados na literatura, alguns considerados fortemente não lineares. ______________________________________________________________________________
ABSTRACT: With the scientific and technologic advances, the structural engineer has now access to computational programs that make possible more advanced numerical analysis. This have proportionate an increase in the safety and economy of projects. For the conception of slender structures, the use of geometrically nonlinear analysis, where second order effects are explicitly included, are becoming more and more common. In this context, this dissertation aims to evaluate the geometrically nonlinear static behavior of plane trusses and frame structural systems through the development and use of an interactive graphical computational system, named here AFA-OPSM (Advanced Frame Analysis – Ouro Preto School of Mines). This system is developed with the programming and graphics resources of the software MATLAB, and shows, in an integrated way, the phases of modeling, analysis and results visualization. Still, it is important to point out that this computational system is build following the object orientation paradigm, in which a diversity of nonlinear solution strategies are incorporated. The nonlinear finite elements formulations are developed considering the bar and the Euler-Bernoulli and Timoshenko beam theories, and the total Lagrangian and co-rotational reference systems. The numerical results obtained in this work, as well as the graphical resources in AFA-OPSM, are evaluated and validated through the study of classical stability structural problems found in literature, some of which are considered highly nonlinear.
Schwaller, Loïc. "Exact Bayesian Inference in Graphical Models : Tree-structured Network Inference and Segmentation." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS210/document.
Full textIn this dissertation we investigate the problem of network inference. The statistical frame- work tailored to this task is that of graphical models, in which the (in)dependence relation- ships satis ed by a multivariate distribution are represented through a graph. We consider the problem from a Bayesian perspective and focus on a subset of graphs making structure inference possible in an exact and e cient manner, namely spanning trees. Indeed, the integration of a function de ned on spanning trees can be performed with cubic complexity with respect to number of variables under some factorisation assumption on the edges, in spite of the super-exponential cardinality of this set. A careful choice of prior distributions on both graphs and distribution parameters allows to use this result for network inference in tree-structured graphical models, for which we provide a complete and formal framework.We also consider the situation in which observations are organised in a multivariate time- series. We assume that the underlying graph describing the dependence structure of the distribution is a ected by an unknown number of abrupt changes throughout time. Our goal is then to retrieve the number and locations of these change-points, therefore dealing with a segmentation problem. Using spanning trees and assuming that segments are inde- pendent from one another, we show that this can be achieved with polynomial complexity with respect to both the number of variables and the length of the series
Baiardi, Marco. "Sviluppo di modello dinamico di elicottero per simulazione del volo." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Find full textEkman, Jonas. "Evaluation of HCI models to control a network system through a graphical user interface." Thesis, KTH, Data- och elektroteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208951.
Full textSAAB har ett projekt för utveckling av ett nätverkssystem med anslutande noder, med noder som kan vara både informationsproducent och konsument för olika kommunikationstyper. En nod är en sak eller ett objekt inom försvaret t.ex. kan det vara en soldat, militärt sjukhus eller en obemannad farkost. Varje nod tillhör ett uppdrag, tex att försvara Gotland. Målet med projektet är att man ska kunna gradera de olika uppdragen och därmed gradera vilken prioritet dessa noder har i nätet. Noder som tillhör ett uppdrag med hög gradering kommer prioriteras över de underliggande uppdragen i nätverket. En användare kan via ett grafiskt användargränssnitt gradera uppdragen och konfigurera tillhörande inställningar. Via det grafiska användargränssnittet kan en användare även planera, gradera och konfigurera inställningar för kommande uppdrag samt simulera om det går att genomföra. Användaren ska även i realtid kunna se om de önskade inställningarna inte kan leva upp till de önskade kraven, och därmed kunna åtgärda detta. Detta arbete undersökte olika MMI-modeller som kan användas för att skapa ett grafiskt användargränssnitt som minimerar risken att användaren konfigurerar systemet på ett felaktigt sätt. Studien visade sig att det inte finns några MMI modeller som tar hänsyn till felkonfigureringar, och en ny modell skapades. Den nya modellen användes och utvärderas genom att skapa en prototyp av ett grafiskt användargränssnitt för SAAB:s projekt, som testades på en potentiell användare. Testet visade att den nya modellen minskar risken för felkonfigureringar.
Bolfarine, Henrique. "Comparative evaluation of network reconstruction methods in high dimensional settings." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-18052017-001105/.
Full textVários métodos tem sido propostos para a reconstrução de redes em alta dimensão, que e tratada como um Modelo Gráfico Gaussiano. Neste trabalho vamos analisar três métodos diferentes, o método Graphical Lasso (GLasso), Graphical Ridge (GGMridge) e um novo método chamado LPC, ou Correlação Parcial Local. A avaliação será realizada em dados de alta dimensão, gerados a partir de grafos aleatórios (Erdos-Renyi, Barabasi-Albert, Watts-Strogatz ), usando Receptor de Operação Característica, ou curva ROC. Aplicaremos também os metidos apresentados, na reconstrução da rede de co-expressão gênica para tumores de câncer cervical.
Ali, Fakhraldeen H. "A concurrent processing system for the generation of real-time three dimensional graphics : A VME-bus compatible low cost raster graphics system for the generation of polygonally modelled three dimensional images in real-time." Thesis, University of Bradford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236459.
Full textPaschoal, Alexandre Rossi. "GINGA - Graphical Interface for Comparative Genome Analysis: o desenvolvimento de um sistema computacional de visualização gráfica para a análise comparativa de genomas de bactérias." Laboratório Nacional de Computação Científica, 2007. http://www.lncc.br/tdmc/tde_busca/arquivo.php?codArquivo=124.
Full textThis study aimed to develop a computational system applied to the comparative analysis of prokaryotic genomes in a graphical view. The system named GINGA Graphical Interface for comparative Genome Analysis was developed to analyse a draft genome sequence in comparison to a complete genome. The system shows the alignment between sequence of reads, contigs and scaffolds from partial sequenced genomes and the complete sequence of another genome and allows the identification shared and unique regions as well as rearrangements. GINGA is a web-based system developed using the PERL language to access a MySQL database where all the information regard to the comparative analysis is stored. The module of the interface to GD (Graphics Library) was used to help the construction of the graphical tool. The graphical view allows zoom in/out on the information on assembly, annotation and the organization of the sequences. Supplementary information can be accessed in the form of reports. GINGA system was used to compare the genomes of Leifsonia xyli subsp. cynodontis (Lxc draft genome sequence) and Leifsonia xyli subsp. xyli (Lxx complete genome sequence). The mail goal was to identify genetic differences that may help to understand the pathogeniciy of Lxx towards sugarcane. A total of 9.754 reads assembled in 1.064 contigs and 317 scaffolds produced 1.470.731 of no redundant bases of Lxc genome and were used in the analysis. GINGA allowed the identification of 206.320 bp (~20%) of Lxc specific sequences organized in contigs and 56.884 bp organized in 19 scaffolds (5,9%), around 1 milion bp aligned to Lxx genome and at least 6 large scale genomic rearrangements. These results were presented in a graphical interface and allowed to guide the partial genome sequencing, helping to decide which regions should be further sequenced and at the same time allowing the formulation of hypothesis related to important biological aspects of these microorganisms
Gianotto, Adriana Cheavegatti. "Desenvolvimento de modelos de causalidade com informações de QTLs para estudo do relacionamento de caracteres fenotípicos relativos à absorção de fósforo em milho." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11137/tde-26052015-103020/.
Full textModern QTL mapping approaches are multivariate and take advantage of the phenotypic covariance matrix to improve estimates of QTL positions and effects. However, phenotypic correlation can also be assigned to the causal relationship among phenotypes, and even modern multivariate QTL analysis does not take these relationships into account. Structural equation models and graphical models are the main methodologies to study causality from observational data. We studied a set of phenotypes related to root morphology, biomass accumulation and phosphorus acquisition in maize. These phenotypes were measured in a maize population from the EMBRAPA breeding program composed of 145 recombinant inbred lines (RILs) derived from the crossing of two divergent lines for phosphorus acquisition efficiency. QTL mapping for the traits was performed using univariate (MIM) and multivariate (MT-MIM) multiple interval mapping. MIM analysis revealed QTL affecting root diameter, fine root surface area, shoot dry weight and root dry weight. MT-MIM analysis revealed 12 QTL with different pleiotropy patterns and QTL with marginal effects affecting all seven studied characters. A causal model for phenotype characters was developed using a priori knowledge and structural equation model techniques. The structural equation model presented an unidirectional causal flow among the variables, with root morphological traits exerting causal effects over biomass traits, which in turn cause phosphorus acquisition traits. Using PC algorithm for an automatic search of causal models based on conditional independence was not able to orient all discovered causal relationships among traits but revealed a more intricated relationship than the structural equation model, with potential causal feedback loops among the traits. Employing causal search algorithms based on QTL information (named QDG and QPSO) allowed the orientation of all causal relationships detected by PC algorithm and it has also confirmed the presence of two neighbor causal cycles among the studied traits. As a general rule, pleiotropic QTL detected by MT-MIM approach exerted effects over traits according to the causal model discovered by PC and QDG algorithms, suggesting that some of the QTL detected effects were indirect effects of QTL located upstream at the proposed causal model. Employing MT-MIM approach and causal analysis has allowed a better comprehension of genetic architecture underlying root morphology, biomass accumulation and phosphorus acquisition traits in maize.
Emmanuel, Desmontils. "Le projet CordiFormes : une plate-forme pour la construction de modeleurs déclaratifs." Phd thesis, Université de Nantes, 1998. http://tel.archives-ouvertes.fr/tel-00816786.
Full textTalavera, Edwin Rafael Villanueva. "Métodos Bayesianos aplicados em taxonomia molecular." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18152/tde-03102007-105125/.
Full textIn this work are presented two clustering methods thought to be applied in molecular taxonomy. These methods are based in probabilistic models which overcome some problems observed in traditional clustering methods such as the difficulty to know which distance metric must be used or the lack of treatment of available prior information. The proposed methods use the Bayes theorem to combine the information of the data with the available prior information, reason why they are called Bayesian methods. The first method implemented in this work was the hierarchical Bayesian clustering, which is an agglomerative hierarchical method that constructs a hierarchy of partitions (dendogram) guided by the criterion of maximum Bayesian posterior probability of the partition. The second method is based in a type of probabilistic graphical model knows as conditional Gaussian network, which was adapted for data clustering. Both methods were validated in 3 datasets where the labels are known. The methods were used too in a real problem: the clustering of a brazilian collection of bacterial strains belonging to the genus Bradyrhizobium, known by their capacity to transform the nitrogen (\'N IND.2\') of the atmosphere into nitrogen compounds useful for the host plants. This dataset is formed by genetic data resulting of the analysis of the ribosomal RNA. The results shown that the hierarchical Bayesian clustering method built dendrograms with good quality, in some cases, better than the other hierarchical methods. In the method based in conditional Gaussian network was observed acceptable results, showing an adequate utilization of the prior information (about the clusters) to determine the optimal number of clusters and to improve the quality of the groups.
Mamane, Salha. "Lois de Wishart sur les cônes convexes." Thesis, Angers, 2017. http://www.theses.fr/2017ANGE0003/document.
Full textIn the framework of Gaussian graphical models governed by a graph G, Wishart distributions can be defined on two alternative restrictions of the cone of symmetric positive definite matrices: the cone PG of symmetric positive definite matrices x satisfying xij=0 for all non-adjacent vertices i and j and its dual cone QG. In this thesis, we provide a harmonious construction of Wishart exponential families in graphical models. Our simple method is based on analysis on convex cones. The focus is on nearest neighbours interactions graphical models, governed by a graph An, which have the advantage of being relatively simple while including all particular cases of interest such as the univariate case, a symmetric cone case, a nonsymmetric homogeneous cone case and an infinite number of non-homogeneous cone cases. The Wishart distributions on QAn are constructed as the exponential family generated from the gamma function on QAn. The Wishart distributions on PAn are then constructed as the Diaconis- Ylvisaker conjugate family for the exponential family of Wishart distributions on QAn. The developed methods are then used to solve the Letac-Massam Conjecture on the set of parameters of type I Wishart distributions on QAn. Finally, we introduce and study exponential families of distributions parametrized by a segment of means with an emphasis on their Fisher information. The focus in on distributions with matrix parameters. The particular cases of Gaussian and Wishart exponential families are further examined
Llerena, Julissa Giuliana Villanueva. "Multi-label classification based on sum-product networks." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-08122017-100124/.
Full textA classificação Multi-Rótulo consiste em aprender uma função que seja capaz de mapear um objeto para um conjunto de rótulos relevantes. Ela possui aplicações como associação de genes com funções biológicas, classificação semântica de cenas e categorização de texto. A classificação tradicional, de rótulo único é, portanto, um caso particular da Classificação Multi-Rótulo, onde cada objeto está associado com exatamente um rótulo. Uma abordagem bem sucedida para classificação é obter um modelo probabilístico da relação entre atributos do objeto e rótulos. Esse modelo pode então ser usado para classificar objetos, encon- trando a predição mais provável por meio da probabilidade marginal ou a explicação mais provavél dos rótulos dados os atributos. Dependendo da família de modelos probabilísticos escolhidos, tais inferências podem ser intratáveis quando o número de rótulos é grande. As redes Soma-Produto (SPN, do inglês Sum Product Network) são modelos probabilísticos profundos, que permitem inferência marginal tratável. No entanto, como em muitos outros modelos probabilísticos, a inferência da explicação mais provavél é NP-difícil. Embora SPNs já tenham sido usadas com sucesso para tarefas de classificação tradicionais, não existe investigação aprofundada no uso de SPNs para classificação Multi-Rótulo. Neste trabalho, investigamos o uso de SPNs para classificação Multi-Rótulo. Comparamos vários algoritmos de aprendizado de SPNs combinados com diferentes abordagens propostos para classi- ficação. Mostramos que os classificadores Multi-Rótulos baseados em SPN são competitivos contra classificadores estado-da-arte, como Random k-Labelsets usando Máquinas de Suporte Vetorial e inferência exata da explicação mais provavél em CutNets, em uma coleção de conjuntos de dados de referência.
Bresolin, Tiago. "Causal learning techniques using multi-omics data for carcass and meat quality traits in Nelore cattle /." Jaboticabal, 2019. http://hdl.handle.net/11449/190717.
Full textResumo: Registros de características quantitativas e informações genotípicas cole- tadas para cada animal são utilizados para identificar regiões do genoma associadas à variação fenotípica. No entanto, essas investigações são, geralmente, realizadas com base em testes estatísticos de correlação ou associação, que não implicam em causalidade. A fim de explorar amplamente essas informações, métodos poderosos de inferência causal foram desenvolvidos para estimar os efeitos causais entre as variáveis estudadas. Apesar do progresso significativo neste campo, inferir os efeitos causais entre variáveis aleatórias contínuas ainda é um desafio e poucos estudos têm explorado as relações causais em genética quantitativa e no melhoramento animal. Neste contexto, dois estudos foram realizados com os seguintes objetivos: 1) Buscar as relações causais entre as características de carcaça e qualidade de carne usando um modelo de equação estrutural (MEE), sob modelo linear misto em bovinos da raça Nelore, e 2) Reconstruir redes de genes-fenótipos e realizar análise de rede causal por meio da integração de dados fenotípicos, genotípicos e transcriptômicos em bovinos da raça Nelore. Para o primeiro estudo, um total de 4.479 animais com informação fenotípica para o peso da carcaça quente (PCQ), área de olho lombo (AOL), espessura de gordura subcutânea (EGS), força de cisalhamento (FC) e marmoreio (MAR) foram usados. Os animais foram genotipados usando os painéis BovineHD Bead- Chip e GeneSeek Genomic Pro... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Quantitative traits and genotypes information have been collected for each animal and used to identify genome regions related to phenotypes variation. However, these investigations are, usually, performed based on correlation or association statistical tests, which do not imply in causation. In order to fully explore these information, powerful causal inference methods have been developed to estimate causal effects among the variables under study. Despite significant progress in this field infer causal effect among random variables remains a challenge and some few studies have explored causal relationships in quantitative genetics and animal breeding. In this context, two studies were performed with the following objectives: 1) Search for the causal relationship among carcass yield and meat quality traits using a structural equation model (SEM), under linear mixed model context in Nelore cattle, and 2) Reconstruct gene-phenotype networks and perform causal network analysis through the integrating of phenotypic, genotypic, and transcriptomic data in Nelore cattle. For the first study, a total of 4,479 animals with phenotypic information for hot carcass weight (HCW), longissimus muscle area (LMA), backfat thickness (BF), Warner-Bratzler shear force (WBSF), and marbling score (MB) traits were used. Animals were genotyped using BovineHD BeadChip and GeneSeek Genomic Profiler Indicus HD - GGP75Ki. For causal inference using SEM a multistep procedure methodology was used as follow:... (Complete abstract click electronic access below)
Doutor
Ashurbekova, Karina. "High-dimensional robust structure learning." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT100.
Full textStructure learning in graphical models is an essential topic in different application areas, i.e., genetics, neuroscience. The crucial part of this model is the estimation of covariance/precision matrices. Traditional techniques for handling this problem suffer from two main issues. The first one is the lack of robustness when samples are assumed to follow a Gaussian distribution. The second one is the lack of data when the number of parameters to estimate is too large compared to the number of samples. Thus this thesis aims to build robust high-dimensional models for covariance and precision matrices estimation.The first question we address in the manuscript is the link between zero elements of precision matrices and the measure of the relationship between variables it reveals for different distributions.par In the first main contribution of this thesis we consider the shrinked likelihood-based estimators of the covariance matrix under the assumption of heavy-tailed distribution with unknown mean vector. The main difficulty at this point is the choice of the regularization parameters. We provide a closed-form expression of an optimal shrinkage coefficient for any sample distribution in the elliptical family. Based on these results, an algorithm for the case of the multivariate t-distribution with the simulated and real data is presented.The second contribution is dealing with sparse precision matrix estimation for the non-Gaussian data. Starting with the traditional techniques, we are able to generalize results for the high-dimensional mixture models for the subclass of elliptical family.Finally, we test our graph structure learning approach on brain signals using fMRI. The structure induced by both the correlation and the partial correlation is considered. We then propose a new graph construction method taking into account both conditional and marginal independences. The proposed approach shows better results than classical algorithms
Trenhago, Paulo Roberto. "Ambiente de Realidade Virtual Automático para Visualização de Dados Biológicos." Laboratório Nacional de Computação Científica, 2009. http://www.lncc.br/tdmc/tde_busca/arquivo.php?codArquivo=207.
Full textThis work describes the development of a software structure that currently controls the CAVE at LNCC, as well as its use for biological data visualization. This work also includes the adaptation and configuration of the InstantReality framework considering all particularities of the CAVE built at LNCC, which amongst other things does not have square walls all around (two walls have a particular shape). In order to accompish this task we make use of the emerging X3D technology. This work also proposes a process for fast development of biological data visualization. Such process has been used to develop a series of sample applications, which included geometric description of parts of the human cardiovascular system as well as other structures such as parts of worms and other creatures, visualization of proteine models and virus envelops both relying or not on some programming language. This work also introduces important aspects of complex surface visualization and describes the implementation of a GPU based ilumination model. Additionally, some justifications are presented regarding the use of Virtual Reality as a tool for bioinformatics visuzalization or biologic applications. Finally, this work evaluates the CAVE prototype, considering each of its components, in the light of the results achieved in the biologic visualization applications developed. Problems are identified and further improvements are proposed.
Woxler, Platon. "Efficient generation and rendering of tube geometry in Unreal Engine : Utilizing compute shaders for 3D line generation." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302564.
Full textAtt visualisera stora grafer i en immersiv miljö, såsom VR eller AR, kan förbättra en användares förståelse när de utforskar data på nya sätt. För att få ut det mesta av denna typen av visualiseringar krävs interaktiva komponenter som är tillräckligt snabba för att tillgodose interaktivitet. Genom att visa de linjer, som binder samman en grafs noder, som plana linjer som imiterar 3Dlinjer eller rör, kan man undvika att slå i det tak som tekniska begränsningar medför. Denna metoden är acceptabel vid användning av traditionella 2Dskärmar, men att representera rör som plana linjer i VE ger en mindre immersiv användarupplevelse, i kontrast till att visualisera sann 3D -geometri. För att tillgodose dessa krav dvs, tidseffektivitet och visuella kvaliteter, behöver vi ett effektivt sätt att producera 3D-linjer. Denna uppsats undersöker hur man kan generera rörformad geometri med hjälp av compute shaders i den moderna spelmotorn Unreal Engine (UE). Genom att använda compute shaders kan vi utnyttja den parallella beräkningskraften hos en GPU, kan vi generera ett rörformat mesh som följer en förutbestämd bana. Resultatet från projektet är ett open source-plugin för UE, som kan generera rörformad geometri i höga hastigheter. Även om det inte kan visas ge några större fördelar när man genererar mindre modeller, jämfört med en sekventiell implementering, skapar och renderar implementeringen av compute Shaders modeller > 40× snabbare, när de genererar 106 rörsegment. I och med att den större delen av datan skapas på GPU kan vi också undvika den flaskhals som kan uppstå när vi överskrider bandbredden mellan CPU och GPU. Med hjälp av verktyget som skapats i samband med denna uppsats kan människor lättare utforska informationsvisualisering i VE. Dessutom främjar denna uppsats utökad utveckling av mesh-generering med hjälp av compute shaders i UE.
Saavedra, Cayan Atreio Portela Bárcena. "Um aplicativo shiny para modelos lineares generalizados." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-22012019-174209/.
Full textRecent technological and computational advances have brought alternatives that have led to changes in the way data analyzes and visualizations are done. One of these changes is characterized by the use of interactive platforms and dynamic graphics to carry out such analyzes. In this way, data analyzes and visualizations are no longer limited to a static environment, so exploring this dynamic interactivity can enable a wider range of data exploration and presentation. The present work aims to propose an interactive application, easy to use and with user-friendly interface, which enables studies and descriptive analysis and fit generalized linear models. This application is made using the shiny package in the R environment of statistical computing. The purpose of the application is to act as a support tool for statistical research and teaching. Users with no familiarity in programming can explore the data and perform the fit of generalized linear models without typing a single code line. Regarding teaching, the dynamics and interactivity of the application gives the student an uncomplicated way to investigate the methods involved, making it easier to assimilate concepts related to the subject.
Gadbem, Edgar Vilela 1984. "Representação de plantas para renderização em tempo real." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275709.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação
Made available in DSpace on 2018-08-20T03:30:59Z (GMT). No. of bitstreams: 1 Gadbem_EdgarVilela_M.pdf: 11643474 bytes, checksum: 35e2467fd623d01bf07083e515dec67c (MD5) Previous issue date: 2011
Resumo: Com a crescente capacidade gráfica de computadores e outros equipamentos eletrônicos como celulares e videogames, cenas interativas que demandam alto grau de realismo têm se tornado cada vez mais frequentes, sejam em jogos ou em ambientes de realidade virtual. Com uma considerável complexidade, as plantas apresentam um desafio em tais cenas. Devido aos avanços nas técnicas de simulação do crescimento de plantas, obtidos com a aplicação de conhecimentos de botânica nessas simulações, a geração de modelos detalhados de plantas tornou-se possível. Entretanto, estes modelos apresentam uma grande quantidade de triângulos em sua representação. Com a estrutura complexa das plantas, técnicas tradicionais de simplificação de modelos não produzem bons resultados, por isso, vários estudos foram feitos para a criação de técnicas de representação e simplificação específicas para plantas, em busca de manter o realismo e ganhar em desempenho. Este trabalho avalia um conjunto de técnicas de representação com o intuito de combiná-las em uma abordagem mista que proporcione um melhor resultado visual em comparação com a aplicação individual dessas técnicas, bem como oferece melhorias frente aos avanços das placas gráficas e identifica situações de uso de cada técnica com base na estrutura particular de diferentes espécies de plantas. O trabalho apresenta uma estrutura de dados, organizada em ramos e nós terminais, para facilitar a renderização em tempo real dos modelos das plantas em cenas por meio da aplicação das técnicas abordadas
Abstract: Due to the increasing graphical capabilities of computers and other electronic devices such as cell phones and video games, interactive scenes that require a high degree of realism have become more often, for instance, in games or virtual reality environments. With a considerable complexity, representation of plants is a challenging task in such scenes. Due to advances in simulation techniques for plant growth, obtained by applying knowledge of botany in the simulations, the generation of detailed models of plants became possible. However, these models contain a large number of triangles in their representation. As a consequence of the complex structure of plants, traditional simplification techniques of models do not produce good results, therefore, several studies have been conducted to create techniques for plant representation and simplification with proper balance between realism and performance. This work analyzes a set of representation techniques in order to combine them into a mixed approach that provides better visual results compared to the individual application of these techniques. It also offers improvements through the advances of graphics units and identifies scenarios for each technique based on the particular structure of different plant species. The work presents a data structure, organized into branches and terminal nodes, to facilitate real-time rendering of plant models in scenes with the application of the discussed techniques
Mestrado
Ciência da Computação
Mestre em Ciência da Computação
Torres, Daniel Seidenberger. "Simulador pediátrico InCor: desenvolvimento de um modelo hidráulico do sistema circulatório pediátrico com ajustes automatizados de pressões." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3154/tde-27082018-150622/.
Full textVentricular assist devices (VADs) can be used for the hemodynamic stabilization of patients waiting for heart transplantation. Advances in the technologies and the use of biocompatible materials have contributed to the development of devices with reduced dimensions and blood trauma. Evaluation of the performance of these devices demands the use of hydraulic simulators of the circulatory system that reproduce pressures and flows existing in physiological conditions of interest. This work aims to develop a simulator of the pediatric circulation with automated adjustments of pressures. The simulator consists of a hydraulic circuit modeling the systemic and pulmonary branches and a microcontrolled system with a user interface for monitoring flows and ventricular pressures, and automating adjustments of aortic and pulmonary arterial pressures (AoP, PAP) and left and right atrial pressures (LAP, RAP). Two pulsatile pumps with 15 ml ejection volume are used to model the mechanical behavior of the left and right ventricles. Aortic and pulmonary arterial compliances and preloads of the ventricles are simulated by chambers with adjustable volumes of air and fluid (blood analog) using an air pump. Motorized clamps adjust the hydraulic resistances of the loops. Instantaneous signals of VAD input and output flows and of arterial, atrial and ventricular pressures are obtained by transducers and digitalized in a microcontroller that commands the clamps and the air pump. Algorithms were developed to adjust the resistances, compliances and preloads. A graphical user interface displays signals in real time (or recorded) and allows selection of simulation parameters. The performance of the automation system was tested setting pressures in two situations: 1) simulations of random conditions defined by the interface software and 2) simulations of physiological conditions (normal and low myocardial contractility). In the systemic model, the pressures were adjusted in both cases (maximum error of 0.5% for AoP and 5% for LAP) in approximately 80 seconds. In the complete model, the maximum error for simulations of physiological conditions was 4% for arterial pressures and 5% for atrial pressures. The results obtained demonstrate that the simulator developed allows mimicking the relevant features of the systemic and pulmonary branches of the circulation needed to assess the performance of mechanical circulatory assist devices. The simulator is portable, easy to operate and can be applied in teaching and training of health professionals working with mechanical circulatory support of patients.
Gonçalves, André de Freitas. "Avaliação de território e coremática. Aplicação ao município de São Paulo." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/8/8136/tde-10122012-121403/.
Full textIn a period where the changes occur at an accelerated way, operating a growing number of actors and the general processes that directly or indirectly reflect the local dynamics, we need to find analytical tools that can assist in understanding these changes. Even though global events strongly influence the location, increasingly smaller scales have greater responsibilities, because it is the place where the social and spatial inequalities appear explicitly. The characteristics of the contemporary period imposes us to the challenge of thinking and renew the technical analysis. Whereas the dimensions of a society is the geographical space, and good understanding of current reality involves the evaluation of our territories, we believe to be pertinent using the appropriate evaluation of territory and coremática as a way to achieving this task. Understood as theoretical methodological tools, the evaluation of territory and coremática are part of efforts to comprehend the contemporary reality, emerged from the need to better understand, more clearly and objectively, the organization of geographical space and the territorial dynamic and be able to, by means of criteria and parameters, an evaluation of the situation of a certain space. These analysis techniques have the same theoretical source and they complement each other. Their first formulations were composed by Roger Brunet, who led a group of French geographers who developed a series of investigations and therefore could improve them theoretically and methodologically. We will validate its use by applying the methodology in the analysis of São Paulo City.
Marturelli, Leandro Schaeffer. "Fluxo do Vetor Gradiente e Modelos Deformáveis Out-of-Core para Segmentação e Imagens." Laboratório Nacional de Computação Científica, 2006. http://www.lncc.br/tdmc/tde_busca/arquivo.php?codArquivo=9.
Full textMain memory limitations can lower the performance of segmentation applications for large images or even make it undoable. In this work we integrate the T-Surfaces model and Out-of-Core isosurface generation methods in a general framework for segmentation of large image volumes. T-Surfaces is a parametric deformable model based on a triangulation of the image domain, a discrete surface model and an image threshold. Isosurface generation techniques have been implemented through an Out-of-Core method that uses a kd-tree structure, called Meta-Cell technique. By using the Meta-Cell framework, we present an Out-of-Core version of a segmentation method based on T-Surfaces and isosurface extraction. The Gradient Vector Flow (GVF) is an approach based on Partial Differential Equations. This method has been applied together with snake models for image segmentation through boundary extraction. The key idea is to use a diffusion-reaction PDE in order to generate a new external force field that makes snake models less sensitivity to initialization as well as improves the snakes ability to move into boundary concavities. In this work, we firstly review basic results about global optimization conditions of the GVF and numerical considerations of usual GVF schemes. Besides, we present an analytical analysis of the GVF and a frequency domain analysis, which gives elements to discuss the dependency from the parameter values. Also, we discuss the numerical solution of the GVF based in a SOR method. We observe that the model can be used for Multiply Connected Domains and applied an image processing approach in order to increase the GVF efficiency.
Monteiro, Leandro de Pinho. "Soluções numericas em um modelo de tecidos baseado na superficie de Cosserat." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260029.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e Computação
Made available in DSpace on 2018-08-12T07:57:07Z (GMT). No. of bitstreams: 1 Monteiro_LeandrodePinho_M.pdf: 2175636 bytes, checksum: 41d333af4978e00fcca508aa92a49e03 (MD5) Previous issue date: 2008
Resumo: Atualmente, os modelos físicos são amplamente utilizados em simulações computacionais de vestuários e tecidos em geral. Eles podem ser divididos em duas abordagens: mecânica de partículas e mecânica de contínuos. A mecânica de partículas é hoje a abordagem mais utilizada, possuindo vantagens como a simplicidade da formulação e um bom desempenho computacional. Já a mecânica de contínuos é reconhecida por ser a abordagem mais precisa sob o ponto de vista físico, porém tem um alto custo computacional. Muitas vezes, o baixo desempenho da mecânica de contínuos está relacionado à solução numérica utilizada para obter diferentes estados do tecido ao longo do tempo, em decorrência da sua solução demandar resolução de sistemas de equações de um grande número de variáveis. As soluções encontradas na literatura são técnicas de elementos finitos ou de diferenças finitas, com integração semi-implícita ou implícita, todas com uma complexidade computacional não linear. Desta forma, este trabalho visa analisar a adequabilidade de utilizar métodos explícitos, que tem um comportamento linear, em um modelo físico fundamentado na teoria de superfície de Cosserat, cujos autores provam que ele consegue produzir dobras sob forças de compressão. Discretizando espacialmente este modelo com a técnica das diferenças finitas, métodos explícitos são avaliados para solucionar as equações diferenciais ordinárias resultantes. Com base nestas avaliações, foi selecionado o método de Verlet e implementado um simulador da dinâmica de malhas retangulares provido de uma interface gráfica interativa. Isso viabilizou uma validação prática do modelo, demonstrando a sua superioridade na produção de dobras em relação aos outros modelos existentes.
Abstract: Currently, physics-based models are frequently used for cloth simulations. There are basically two approaches: particle mechanics and continuum mechanics. The particle mechanics is at the present time the most widely used method, having some advantages like an easy formulation and a high performance. The continuum mechanics is regarded as being a more precise approach, but it has a high computational cost. This low performance is mostly owing to the numerical solution that obtains cloth states along the time, because its formulation is based involves a large number of variables. The solutions found in the literature are the finite element and the finite differences techniques, with the semi-implicit and implicit integration. They possess a non linear computational complexity. So, this work aims to analyze the suitability of application of an explicit integration technique, that has a linear behavior, to a cloth model founded on the theory of Cosserat surface, whose authors claim to have proved it can produce natural folds under pure compression forces. Based on this evaluation, the Verlet method was selected and a rectangular mesh dynamics simulator with an interactive graphics interface has been implemented. This permits a practice validation of the cloth model, showing its superiority on production of folds compared with the other models.
Mestrado
Engenharia de Computação
Mestre em Engenharia Elétrica
Raminelli, Jaqueline Aparecida. "Métodos de adequação e diagnóstico em modelos de sobrevivência dinâmicos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-03052016-164950/.
Full textAnalysis of survival data has been traditionally based on the Cox regression model (COX, 1972). However, the proportionality of the hazards required by this model may not be attended for many practical situations. This restriction of the Cox model has generated interest in alternative approaches, among them dynamic models that allow covariates with time-varying effect. In this work, the main dynamic survival models with additive and multiplicative structures were revised under the nonparametric and semiparametric settings. Graphical methods based on residuals were presented in order to evaluate the goodness-of-fit of these models. A time-dependent version of the area under the ROC curve, denoted by AUC(t), was proposed to evaluate and compare the predictive accuracy of additive and multiplicative survival models. The performance of the AUC(t) was evaluated by means of a simulation study. Data from three studies described in the literature were also analyzed to illustrate or complement the scenarios that were considered in the simulation study. Overall, the results indicate that the graphical methods presented to assess the goodness-of-fit of the models together with the AUC(t) provide a useful set of statistics tools for the purpose of evaluating dynamic survival models in the nonparametric and semiparametric settings. Moreover, applying this set of tools in some data sets showed that on the one hand dynamic models are attractive because they allow time-dependent covariates, but on the other hand they may not be appropriate for all data sets since estimation may present restrictions for some of them.
Moreno, Vilson. "Concepção e implementação de um modelo de coordenação para uma plataforma de visualização exploratória." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-23012007-163303/.
Full textExploratory Visualization techniques in association with interaction techniques provide useful tools to support knowledge discovery processes from raw data. Multiple visualizations of the same data set allows users to observe the data from multiple perspectives, so as to make the most of the strengths of each technique, while minimizing their weaknesses. In this context, in exploratory processes it is interesting to coordinate the multiple visualizations, so that user interaction actions on one visualization are reflected in the remaining ones, thus reducing the cognitive load on the user. A complex aspect in the project of visualization tools is how to connect visual representations and interactive controls in a flexible way. This work approaches the conception and implementation of a coordination model capable of handling multiple visualizations in a generic and flexible manner. In order to accomplish this, some coordination models described in recent works in the literature and used in multi-purpose Visualization Systems were studied. The proposed model was implemented in InfoVis, an extensible software framework that incorporates multiple exploratory visualization techniques under development at the ICMC-USP
Bao, Xin. "Sketch-based intuitive 3D model deformations." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/sketchbased-intuitive-3d-model-deformations(2c12a1f9-cf0c-45d1-926e-a5f3db0d5acb).html.
Full textHiga, Mali Naomi. "Determinação do limiar de anaerobiose pela análise visual gráfica e pelo modelo matemático de regressão linear bi-segmentado de Hinkley em mulheres saudáveis." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/17/17145/tde-07122006-084132/.
Full textThe anaerobic threshold (AT) is defined as the intensity level of physical exercise at which energy production by aerobic metabolism is supplemented by anaerobic metabolism. This index provides a physiologic delimitation of great importance to supply the organism biological systems information involved in physical exercise performance. The AT constitutes a most important determining of an individuals functional aerobic capacity. Several methods are used for estimating the AT during exercise. There are invasive methods that require repeated blood lactate accumulation; and there exist non-invasive methods by biological variables analysis, like continuous respiratory gases determination by analysis of changes in pattern respiratory and metabolic responses, and heart rate (HR) responses too. The aim of the present study was to compare AT obtained by a graphic visual method of ventilatory and metabolic variables, considered by gold standard method in the present study, with the bi-segmental linear regression mathematic model of Hinkleys algorithm applied in a HR (Hinkley HR) and carbon dioxide output ( CO2) (Hinkley CO2) data. Methodology: Thirteen young women, 24 ± 2,63 years old, and sixteen postmenopausal women, 57 ± 4,79 years old, leading healthy and sedentary life style were submitted to an incremental test in a cicloergometer electromagnetic braking (Quinton Corival 400), with 10 to 20 W/min increments up to physical exhaustion. The ventilatory variables were registered breath-to-breath (CPX-D, Medical Graphics) and HR was obtained beat-to-beat (ECAFIX, ACTIVE-E), over real time. The data were analyzed by Friedmans test and Spearmans correlation test, with a level of significance set at 5%. Results: The Power output (W), HR (bpm), oxygen uptake ( O2) (mL/kg/min), O2 (mL/min), CO2 (mL/min) and pulmonary ventilation ( E) (L/min) data in AT have showed no significant differences (p > 0,05) between methods to determine AT in both women groups. The correlation analysis of power output in W, HR in bpm, O2 in mL/kg/min, O2 in mL/min, CO2 in mL/min and E in L/min values, determined by gold standard method and by Hinkley CO2 data were respectively: rs=0,75; rs=0,57; rs=0,48; rs=0,66; rs=0,47 and rs=0,46 in young group, and rs=-0,013; rs=0,77; rs=0,88; rs=0,60; rs=0,76 and rs=0,80 in postmenopausal group. The correlation analysis by gold standard method and Hinkley FC in AT of power output in W, HR in bpm, O2 in mL/kg/min, O2 in mL/min, CO2 in mL/min and E in L/min data were respectively: rs=0,58; rs=0,42; rs=0,61; rs=0,57; rs=0,33 and rs=0,39 in young group, and rs=0,14; rs=0,87; rs=0,76; rs=0,52; rs=0,33 and rs=0,65 in postmenopausal group. The postmenopausal group presents better correlations values than young group, except in power output and O2 (mL/min) data. This may be related to more variability rate and higher kinetics responses to variables studied in young group in relation to postmenopausal group. Nevertheless, there was obtained better mathematical model adequacy in middle-age women. Conclusion: the Hinkleys mathematical algorithm proposed to detect the response patterns changes of CO2 and HR variables was efficient to detect AT in health postmenopausal womens group, therefore, the mathematical methodology used in the present study showed be a promissory tool because this method represent a semi-automatized, non invasive and objective measure of AT determination.
Dannecker, Lars. "Visualisierung von Service-Frontends in einem Werkzeug zur präsentationsorientierten Komposition annotierter Dienste." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-25352.
Full textThe aim of the ServFace Project is to enable users with limited IT skills to easily create service-based applications. In order to do so, a tool called "ServFace Builder" has been developed. This tool allows users to build a composite application by combining several service operations. An important part of the ServFace Builder is the graphical representation of those service operations through user interfaces. This thesis describes an approach to automatically generate user interfaces for service operations. To enhance the graphical representation, the user interface generation process of the ServFace Builder comprises annotations and design recommendations next to the common service descriptions to enhance the result of the generation process. This thesis discusses: • Graphical representation of service operations on the basis of service descriptions, annotations, plattform specifications and design recommendations. • Integration of the graphical representation into the actual instance of the given application model. • Implementation and evaluation of the presented concepts
Castro, Thiago Rais de. "Proposta de um modelo para projetos lógicos gráficos para BDOR com implementação no ArgoUML." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-01062011-131450/.
Full textA Logical Graphic Model was proposed to support the Logical Design phase in ORDB. The Logical Graphic Model proposed is an extension of the UML Class Diagram. The extension was obtained by the elaboration of a UML Profile, which was released in XMI to be used in CASE tools from different manufacturers. Two modules were developed for ArgoUML CASE tool. These modules were designed to automate the development in ORDB, where, from a logical graphic, projected using the proposed Logical Graphic Model, creates the code standard SQL: 2003 and the SQL dialect used by Oracle 11g. An architecture based on the ANSI / SPARC and MDA for the project in ORDBs was proposed. This architecture associates the Project phases with the technologies used to support them. Through this architecture, the contributions of this paper and the subjects that will be target for future researches are highlighted. This dissertation diffuses the existing resources in ORDBs and facilitates the development of the Logical Design in ORDB, by disposing the proposed graphic model and automating its development in the ArgoUML CASE tool.
Ferreira, Bruno Leite. "O que sabem sobre as curvas cônicas? : uma possível leitura para o processo de produção de significado em um grupo de estudos /." Rio Claro, 2019. http://hdl.handle.net/11449/182512.
Full textResumo: A presente pesquisa partiu da motivação do seu autor sobre o processo de investigação matemática com estudantes. Entendendo que a Matemática não é produzida do mesmo modo que é apresentada nos livros voltados para o seu estudo, foi intencionado na tese elaborar compreensões sobre o processo de produção de significado para determinadas noções matemáticas em um contexto investigativo de aprendizagem. Desse modo, a pesquisa configurou-se em uma abordagem qualitativa, apoiando-se na Teoria do Modelo dos Campos Semânticos para realizar uma possível leitura desse processo, enfatizando-se a contribuição deste trabalho no diálogo do referencial teórico com o campo da Geometria. Para tal, foi organizado um Grupo de Estudos Independente sobre curvas cônicas composto por quatro estudantes do curso de graduação em Matemática e o pesquisador, autor desta tese de doutorado. Não houve um programa pré-definido, permitindo que os participantes conduzissem as discussões partindo da seguinte pergunta: O que vocês sabem sobre curvas cônicas? Como instrumento de produção de dados, foram utilizadas gravações em vídeo-áudio dos vinte e dois encontros que ocorreram ao longo do ano de 2016, conversas no aplicativo para smartphone WhatsApp (em grupo e em pares) e diários dos participantes. Em consonância com o objetivo, o estilo de escrita da tese adorado como estética buscou evidenciar tanto o processo de produção de conhecimento (matemático) como também o d... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The present research is based on the motivation of its author on the mathematical investigation process with students. Understanding that Mathematics is not produced in the same way as it is presented in textbooks, it was intended in elaborating understandings about the producing meaning process for certain mathematical notions in a research context of learning. In this way, the research is framed on a qualitative approach, based on Semantic Field Model Theory to carry out a possible reading of this process, so that the contribution of this work is emphasized in the dialog of the theoretical reference with the Geometry’s field. For that, a Study Group on conic curves was composed by four undergraduate students in Mathematics and the researcher, author of this doctoral thesis. There was no predefined program, allowing participants to conduct the discussions from referrals through the following question: What do you know about conic curves? As a data production tool, video-audio recordings of the twenty-two meetings that took place throughout 2016, conversations in the WhatsApp smartphone application (in group and in pairs) and participants' diaries were used. In agreement with our aim, the text form of the thesis sought to evidence both the process of production of knowledge (mathematical) as well as of scientific knowledge (to do research). The analysis consisted in making a plausible reading of the dynamics of meaning production from the point of view of one of the subjects.... (Complete abstract click electronic access below)
Doutor
Brandão, Daniel Nicolau. "Métodos de renderização não-fotorrealística." Universidade Federal de Alagoas, 2008. http://repositorio.ufal.br/handle/riufal/1019.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
Nesta dissertação são discutidos os principais conceitos envolvidos nas técnicas de renderização não-fotorrelística e propõe um esquema geral para implementação de tais técnicas. É discutido também um estilo de renderização não-fotorrealística de desenhos de linha para modelos 3D apresentado por Stéphane Grabli e colaboradores, cujos estilos de linha sejam programáveis. Também apresentamos uma implementação de parte do trabalho de Grabli.
SILVA, Wilane Carlos da. "Gerência de Interfaces para Sistemas de Informação: uma abordagem baseada em modelos." Universidade Federal de Goiás, 2010. http://repositorio.bc.ufg.br/tede/handle/tde/530.
Full textBuilding and maintaining a Graphical User Interface (GUI) for Enterprise Information Systems usually requires much Software Engineering staff time and effort. This paper describes a model-driven approach to create dynamically and manage these GUIs. In this approach, the Software Engineer designs conceptual models of the information system using object-oriented meta-models. A set of predefined mapping rules is applied to automatically transform and refine the conceptual models in order to generate, in runtime, the look and feel of the GUI, without source code creation. This improves the software usability, assuring consistency and homogeneity of the GUI, increases the productivity of the software engineering staff and simplifies maintenance. In our experiments we have observed an average productivity fifteen times higher than traditional methods of GUI development.
Construir e manter uma Interface Gráfica com Usuário (GUI) para Sistemas de Informação (SI) demanda muito tempo e esforço da equipe de Engenharia de Software. Esta dissertação descreve uma abordagem dirigida por modelos para criar dinamicamente e gerenciar essas interfaces. Nessa abordagem, o Engenheiro de Software projeta um modelo conceitual do sistema de informação usando um meta-modelo orientado a objetos. Um conjunto de regras de mapeamento predefinidas é aplicado para refinar e transformar o modelo conceitual do SI, gerando, em tempo de execução, a sua interface gráfica, com aparência e comportamentos específicos. Esse mecanismo melhora a usabilidade do software, assegurando consistência e homogeneidade das GUIs, aumenta a produtividade da equipe de Engenharia de Software e simplifica a manutenção do SI. Nos experimentos realizados foi observada uma média de produtividade quinze vezes maior do que os métodos tradicionais no desenvolvimento de GUIs.
Bernigau, Holger. "Causal Models over Infinite Graphs and their Application to the Sensorimotor Loop." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-164734.
Full textGeitner, Gert-Helge. "Modellbildung dynamischer Systeme mittels Leistungsfluß." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-97096.
Full textThe paper starts with a comparison of the conventional modelling method based on signal flow and modern power flow oriented modelling methods based on the principle of action and reaction. BG (Bond Graph), POG (Power Oriented Graph) and EMR (Energetic Macroscopic representation) are such modern methods based on the power exchange between partial systems as a key element for the basic modelling approach. These tools preserve the physical structure, enable a view inside dynamical systems and support understanding the power flow. Relationships between these graphical representations will be given. After the explanation of basics for POG and BG an overview and special features of a freeware add-on library for simulation of BGs will be outlined. The block library runs under Simulink, consists of nine menu-driven customised blocks only and realises bidirectional connections. Examples DC motor, chopper and elastic shaft demonstrate the advantages of power flow oriented modelling. State space control, energy efficiency and Simulink LTI analysis tools exemplify the application of the presented Simulink add-on BG library
Jaeger, Marc. "Representation et simulation de croissance des vegetaux." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13224.
Full textGoes, Fernando Ferrari de. "Analise espectral de superficies e aplicações em computação grafica." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275916.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação
Made available in DSpace on 2018-08-14T02:23:56Z (GMT). No. of bitstreams: 1 Goes_FernandoFerraride_M.pdf: 31957234 bytes, checksum: c369081bcbbb5f360184a1f8467839ea (MD5) Previous issue date: 2009
Resumo: Em computação gráfica, diversos problemas consistem na análise e manipulação da geometria de superfícies. O operador Laplace-Beltrami apresenta autovalores e autofunções que caracterizam a geometria de variedades, proporcionando poderosas ferramentas para o processamento geométrico. Nesta dissertação, revisamos as propriedades espectrais do operador Laplace-Beltrami e propomos sua aplicação em computação gráfica. Em especial, introduzimos novas abordagens para os problemas de segmentação semântica e geração de atlas em superfícies
Abstract: Many applications in computer graphics consist of the analysis and manipulation of the geometry of surfaces. The Laplace-Beltrami operator presents eigenvalues and eigenfuncitons which caracterize the geometry of manifolds, supporting powerful tools for geometry processing. In this dissertation, we revisit the spectral properties of the Laplace-Beltrami operator and apply them in computer graphics. In particular, we introduce new approaches for the problems of semantic segmentation and atlas generation on surfaces
Mestrado
Computação Grafica
Mestre em Ciência da Computação
Le, Ret Anne. "Programmation hors-ligne : modelisation des composants d'une cellule robotisee, application a la detection de collision." Paris, ENSAM, 1988. http://www.theses.fr/1988ENAM0004.
Full textMahdjoubi, Cyrus. "Description et simulation de systemes physiques complexes controles par grafcet." Rennes, INSA, 1987. http://www.theses.fr/1987ISAR0014.
Full textValeinis, Janis. "Confidence bands for structural relationship models." Doctoral thesis, [S.l.] : [s.n.], 2007. http://webdoc.sub.gwdg.de/diss/2007/valeinis.
Full textGeitner, Gert-Helge. "Modellbildung dynamischer Systeme mittels Leistungsfluß." Technische Universität Dresden, 2009. https://tud.qucosa.de/id/qucosa%3A26149.
Full textThe paper starts with a comparison of the conventional modelling method based on signal flow and modern power flow oriented modelling methods based on the principle of action and reaction. BG (Bond Graph), POG (Power Oriented Graph) and EMR (Energetic Macroscopic representation) are such modern methods based on the power exchange between partial systems as a key element for the basic modelling approach. These tools preserve the physical structure, enable a view inside dynamical systems and support understanding the power flow. Relationships between these graphical representations will be given. After the explanation of basics for POG and BG an overview and special features of a freeware add-on library for simulation of BGs will be outlined. The block library runs under Simulink, consists of nine menu-driven customised blocks only and realises bidirectional connections. Examples DC motor, chopper and elastic shaft demonstrate the advantages of power flow oriented modelling. State space control, energy efficiency and Simulink LTI analysis tools exemplify the application of the presented Simulink add-on BG library.:Modellbildung dynamischer Systeme mittels Leistungsfluß 1. Leistungsfluß versus Signalfluß 2. Konjugierte Leistungsvariablen und Kausalität 3. Grundlagen Leistungsfluß orientierter Modellierung 3.1 Definitionen zum POG (Power Oriented Graph) 3.2 Definitionen zu Grundelementen für Bondgraphen (BG) 4. Freeware Bibliothek zur Simulation von Bondgraphen 4.1 Übersicht und Nutzerfreundlichkeit 4.2 Besonderheiten 5. Beispiele 5.1 Gleichstrommotor mit starrer Welle 5.2 Elastische Welle 5.3 Eingangsfilter und Pulssteller 5.4 Vereinfachter Antriebsstrang 6. Anwendung der Simulink Bondgraph Blockbibliothek 6.1 Beispiel elastische Welle 6.2 Zustandsregelung 6.3 Energieeffizienz 6.4 Simulink Analysewerkzeuge 7. Vorteile im Überblick
Mahboob, Atif, Stephan Husung, Christian Weber, Andreas Liebal, and Heidi Krömker. "Modellbasierter Systems Engineering Ansatz zur effizienten Aufbereitung von VR-Szenen." Thelem Universitätsverlag & Buchhandlung GmbH & Co. KG, 2019. https://tud.qucosa.de/id/qucosa%3A36928.
Full textHAJHOUJ, MOUAMD. "Programmation hors ligne : emulation des composants d'une cellule robotisee." Paris, ENSAM, 1988. http://www.theses.fr/1988ENAM0005.
Full textMendes, Nilton Paulo Raimundo. "Modelo virtual exploratório: proposta de uma ferramenta de vendas para o mercado imobiliário residencial." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3146/tde-19112012-094310/.
Full textExamining the business environment of the real estate sector, it can be verified the large number of architectural mockups that today are part of real estate points-of-sale. Mockups are fragile, expensive, take considerable time to be made and have a short life span, as they are discarded when the sales booth is decommissioned. In the sales booths, it is also possible to find full size furnished mock-up flats, with even higher costs. In this environment, the MVE (Exploratory Virtual Model) becomes important for the construction and real estate industries, whose markets are increasingly competitive, where there is a real need to reduce costs, to decrease in execution times and to increase product quality. As it is an important topic of scientific research, this paper proposes the MVE development for selling residential real estate property. The MVE was modeled with a CAD (Computer-Aided Design) / BIM (Building Information Modeling) tool which proved adequate to meet requirements raised in the survey. The MVE was evaluated through case studies in real estate ventures with brokers and customers. Results show that MVE can be developed with much lower cost and in shorter time than the architectural mockup or the mock-up flat and that it has very well accepted both by real estate sales professionals and clients.