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Integration of the Transportation Systems Analysis Model for the Small Aircraft Transportation SystemHinze, Nicolas Karlsson 18 August 2005 (has links)
Standalone computer modules for county to county travel demand forecasting have been integrated. The Trip Generation, Trip Distribution and Mode Choice modules have been unified under one Graphical User Interface (GUI). The outputs are automatically mapped using Geographic Information Systems (GIS) technology to allow immediate and spatial analysis. The integrated model allows for faster running times and quicker analysis of the results. The ability to calculate travel time savings for travelers was also included to the final model. The modeling framework developed is known as the Transportation Systems Analysis Model (TSAM). / Master of Science
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Development, Integration and Simulation of Multiscale Mathematical Models of Physiological Processes: A Software Engineering PerspectiveErson, E. Zeynep January 2011 (has links)
No description available.
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Analysis of BIM and GIS integration: results from literature review and questionnaireRuixue, Liu, Yicheng, Zhong January 2021 (has links)
Abstract. BIM (Building Information Model) and GIS (Geographic Information System) have been rapidly developed in recent years due to their respective strengths in projects. But these two systems are totally different on focus, reference systems and data storage. With the increasing discussion about integrated BIM-GIS and technologies development, application fields, solutions and challenges are continuously updated and developed. However, the actual application of BIM and GIS integration has not been better implemented because it is restricted to certain extent by different regions, different projects and certain technical constraints. To better explore the integration of BIM and GIS, this paper reviews the development progress of BIM and GIS integration, the exiting integration methods at data level, process level and application level, and the remaining integrated challenges through the studies of 43 relevant research articles, and analyzes the actual situation of integration application through the results of questionnaire. Based on the literature review and a questionnaire, there are still technical problems in BIM-GIS integration including transformation accuracy, semantic simplification and geometric information filtering and so on, and integrated BIM-GIS is currently rarely used in the AEC industry. But due to the benefits of the integration, there is no doubt that integrated BIM-GIS system can bring significant value to the AEC industry.
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Assessing Pipeline Failure Probabilities and Hotspots at Multiple Spatial Scales: The Development of a Novel Integrated Methodology to Simulate the Cascading Impacts of Debris Flows on Oil Pipelines / 複数の空間スケールにおけるパイプラインの破損確率とホットスポットの評価:土石流が石油パイプラインに与える連鎖的な影響を計算するための新しい総合的方法の開発SONG, Su 24 November 2022 (has links)
京都大学 / 新制・課程博士 / 博士(工学) / 甲第24295号 / 工博第5068号 / 新制||工||1791(附属図書館) / 京都大学大学院工学研究科都市社会工学専攻 / (主査)教授 CRUZ Ana Maria, 教授 渦岡 良介, 教授 肥後 陽介 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM
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Analýza projektového managementu v praxi pomocí modelů zralosti / Analysis of the project management in practice using project maturity modelsKupka, Radek January 2010 (has links)
The aim of this thesis "Analysis of the project management in practice using project maturity models is to assess the project maturity level of a Czech company providing management consulting, technology and outsourcing services for telecommunication, banking and insurance sector across Central Europe region. Theoretical part is focused on selection and analysis of proper methodology. Practical part applies the chosen methodology Portfolio, Programme and Project Management Maturity Model to Cleverlance Enterprise Solutions Inc. Company. Based on results received during project management maturity evaluation, a set of recommendation is proposed in order to increase the project maturity level.
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Bivariate relationship modelling on bounded spaces with application to the estimation of forest foliage cover by Landsat satellite ETM-plus sensorMoffiet, Trevor Noel January 2008 (has links)
Research Doctorate - Doctor of Philosophy (PhD) / Due to the effects of global warming and climate change there is currently intense and growing international interest in suitable modelling methods for relating satellite remotely sensed spectral imagery of vegetated landscapes to the biophysical structural variables in those landscapes across regional, continental or global scales. Of particular interest here is the satellite optical remote sensing of forest foliage cover—measured as foliage projective cover (FPC)—by Landsat ETM+ (Enhanced Thematic Mapper plus) sensor. In the remote sensing literature, different empirical and physical modelling approaches exist for relating remotely sensed imagery to the landscape parameters of interest, each with their own advantages and disadvantages. These approaches, in the main, may be broadly categorised as belonging to one, or a combination of: spectral mixture analysis (SMA) modelling, canopy reflectance modelling, multiple regression (MR) modelling or, spectral vegetation index (SVI) modelling. This thesis uses the SVI approach, partly in comparison to the MR approach. Both the SVI and MR approaches require field-based data to establish the relationship between the biophysical parameter and the spectral index or spectral responses within defined spectral bandwidths. Surrogate measures of the biophysical parameter are sometimes used extensively to establish this relationship and therefore a separate calibration relationship is required.This has inherent problems when the output of one model is substituted into the next and the effects of carry-over of error from one model to the next are not considered. My main goal is therefore to develop a modelling approach that will allow a larger set of one or more surrogate measures to be combined with a smaller set of ‘true’ measures of the biophysical parameter into the one model for establishing the relationship with the SVI and hence the spectral imagery. Success in meeting the goal is the illustration of a working model using real data. In progression towards meeting the goal, two new modelling ideas are developed and synthesised into the creation of an overall modelling framework for estimating FPC from spectral imagery. The modelling framework, which has potential for use in other applications, allows for the incorporation of different types of data including different calibration relationships between variables while avoiding the usual, stepwise approach to the linking of separate relationship models and their variables. One contribution that is new to both remote sensing and statistical modelling practices involves a polar transformation of the principal components of a multi-spectral image of a local reference landscape to produce a set of empirically based, invariant three-dimensional spectral index transformations that have potential for application to the spectral images of different regional landscapes and possibly global landscapes. In particular, the vegetation index from the set has approximate bounded properties that we exploit for modelling of its contribution to residual variation in its relationships with the biophysical variables measured on the ground. The other contribution to statistical modelling practice that has potential for application by a wide range of disciplines is the direct modelling of interdependent relationships between pairs of bounded variates, each considered to have a measurement error structure that can be modelled as though it is similar to sampling variation. Associated with this particular contribution is the development of novel geometric methods to construct approximate prediction bounds and to assist with model interpretations.
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Integrating Product Model With Assembly Process Model Using LiaisonsSwain, Abinash Kumar 09 1900 (has links) (PDF)
This thesis addresses the problem of achieving better convergence between different phases (here design and manufacturing) of the product development cycle. The use of liaison has been proposed to better integrate the product and assembly process. Two facets of integration have been addressed in this thesis. One is concurrent evolution of the process model with the product model and the second is associativity between product model and process model. A liaison data structure has been proposed, which is set of geometric entities, associated with one or more assembly process that acts as an interface between the product model and process model. As the liaison data is not available explicitly in the product model, a set of algorithms have been developed and implemented to identify and extract the geometric entities defined in the liaison data structure from assembly model. The proposed algorithms can identify and extract liaisons for riveting, welding, bolt fastening, screw fastening, adhesive bonding (gluing) and blind fastening. The developed algorithms have been implemented and tested.
The process model needs to evolve with the product model concurrently so that any mistakes or infeasibility in the process model can be flagged right away. The use of liaison enables the construction of process model as the product model is fleshed out. A framework based on liaison has been proposed and implemented to demonstrate the concurrent evolution of product and process model.
Linking the changes in the product model to flag the changes (or at least identify the need for changes) in the process model forms the associativity problem. The liaison has been used for maintaining associativity between the product and process model. A framework has been proposed for maintaining associativity between product model and process model that makes use of expert knowledge or tribal knowledge to track impact of changes in product model or process model. An aircraft wing box has been used as an example to illustrate and validate the proposed approaches.
Finally the thesis concludes by summarizing contributions of the research and outlining future work.
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Integrating models and simulations of continuous dynamic system behavior into SysMLJohnson, Thomas Alex 05 May 2008 (has links)
Contemporary systems engineering problems are becoming increasingly complex as they are handled by geographically distributed design teams, constrained by the objectives of multiple stakeholders, and inundated by large quantities of design information. According to the principles of model-based systems engineering (MBSE), engineers can effectively manage increasing complexity by replacing document-centric design methods with computerized, model-based approaches. In this thesis, modeling constructs from SysML and Modelica are integrated to improve support for MBSE. The Object Management Group has recently developed the Systems Modeling Language (OMG SysML ) to provide a comprehensive set constructs for modeling many common aspects of systems engineering problems (e.g. system requirements, structures, functions). Complementing these SysML constructs, the Modelica language has emerged as a standard for modeling the continuous dynamics (CD) of systems in terms of hybrid discrete- event and differential algebraic equation systems. The integration of SysML and Modelica is explored from three different perspectives: the definition of CD models in SysML; the use of graph transformations to automate the transformation of SysML CD models into Modelica models; and the integration of CD models and other SysML models (e.g. structural, requirements) through the depiction of simulation experiments and engineering analyses. Throughout the thesis, example models of a car suspension and a hydraulically-powered excavator are used for demonstration. The core result of this work is the provision of modeling abilities that do not exist independently in SysML or Modelica. These abilities allow systems engineers to prescribe necessary system analyses and relate them to stakeholder concerns and other system aspects. Moreover, this work provides a basis for model integration which can be generalized and re-specialized for integrating other modeling formalisms into SysML.
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Sistema multiagente para análise de aderência e melhoria do processo de desenvolvimento ágil FDD baseado no modelo de qualidade CMMIShia, Khaohun 25 August 2015 (has links)
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Previous issue date: 2015-08-25 / In a competitive market of software, companies seek an agile development process with quality. Faced with this challenge, the companies target is a certification to prove the ability to produce a high quality product by following a defined process, for example, Capability Maturity Model Integration for Development (CMMI-DEV). To achieve this goal, the company hires experts to change the existing process, which represents a high cost for small and medium-sized businesses. The assumption in this work is to evaluate the possibility of using an agile methodology which adheres to CMMI-DEV. Feature Driven Development (FDD) was the agile methodology selected to assess their adherence to Project Planning area of CMMI-DEV. The evaluation of specific practices was automated by the multi-agent system with two ontologies. The first of them is the Ontology CMMI/FDD, which defines the concepts and the relationship of FDD with these specific practices. The second is the Ontology of Project Planning Document that defines the concepts used in sections of the Project Planning documents. The mapping between the specific practices and implementation was performed by intelligent mapping agents. The results obtained shown that it is possible to automate the process of evaluation of specific practices by the evidences in sections of the documents, reducing the costs involved in hiring a specialist of CMMI. The evaluation of Intelligent Agents of Specific Practices shown that the FDD partially attends to the specific practices, being necessary to change the two documents elaborated from the FDD Document (Project Plan and List of Functionality) and add three auxiliary documents (Risk Management, Data Management and Training Management) to meet all the specific practices of the Project Planning Area of the CMMI-DEV. / Em um mercado competitivo de desenvolvimento de software, as empresas buscam um processo ágil com qualidade. Diante desse desafio, procuram uma certificação para comprovar a capacidade de produzir com qualidade, seguindo um processo definido, por exemplo, o Capability Maturity Model Integration for Development (CMMI-DEV). Para atingir essa meta, a empresa contrata especialistas para alterar o processo existente, o que representa um alto custo para empresas de pequeno e médio porte. A hipótese neste trabalho é avaliar a possibilidade de utilizar uma metodologia ágil aderente ao CMMI-DEV. O Desenvolvimento Guiado por Funcionalidades (FDD) é a metodologia ágil selecionada para computar a sua aderência em relação à área de Planejamento de Projetos do CMMI-DEV. A avaliação das práticas específicas foi automatizada por um sistema multiagentes com duas ontologias. A primeira delas é a ontologia CMMI/FDD, que define os conceitos e a relação do FDD com essas práticas específicas. A segunda é a ontologia dos Documentos do Planejamento de Projeto, que define os conceitos utilizados nas seções dos documentos do Planejamento de Projeto. O mapeamento entre a prática específica e a implementação nas seções de documentação foi realizado pelos Agentes Inteligentes de Mapeamento. Os resultados obtidos mostram que é possível automatizar o processo de avaliação das práticas específicas, mostrando as evidências nas seções dos documentos, reduzindo os custos envolvidos na contratação de um especialista em CMMI. A avaliação dos Agentes Inteligentes de Práticas Específicas mostra que o FDD atende parcialmente às práticas específicas, sendo necessário alterar os dois documentos elaborados a partir do documento do FDD (Plano de Projeto e Lista de Funcionalidade) e adicionar três documentos auxiliares (Gestão de Risco, Gestão de Dados e Gestão de Treinamento) para satisfazer a todas as práticas específicas da área de Planejamento de Projeto.
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Predicting the N400 Component in Manipulated and Unchanged Texts with a Semantic Probability ModelBjerva, Johannes January 2012 (has links)
Within the field of computational linguistics, recent research has made successful advances in integrating word space models with n-gram models. This is of particular interest when a model that encapsulates both semantic and syntactic information is desirable. A potential application for this can be found in the field of psycholinguistics, where the neural response N400 has been found to occur in contexts with semantic incongruities. Previous research has found correlations between cloze probabilities and N400, while more recent research has found correlations between cloze probabilities and language models. This essay attempts to uncover whether or not a more direct connection between integrated models and N400 can be found, hypothesizing that low probabilities elicit strong N400 responses and vice versa. In an EEG experiment, participants read a text manipulated using a language model, and a text left unchanged. Analysis of the results shows that the manipulations to some extent yielded results supporting the hypothesis. Further results are found when analysing responses to the unchanged text. However, no significant correlations between N400 and the computational model are found. Future research should improve the experimental paradigm, so that a larger scale EEG recording can be used to construct a large EEG corpus. / Innom datalingvistikken har tidligere forskning gjort framsteg når det gjelder å kombinere ordromsmodeller og n-grammodeller. Dette er av spesiell interesse når det er ønskelig å ha en modell som fanger både semantisk og syntaktisk informasjon. Et potensielt bruksområde for en slik modell finnes innom psykolingvistikk, der en neural respons som kalles N400 vist seg å oppstå i kontekster med semantisk inkongruens. Tidligere forskning har oppdaget en sterk korrelasjon mellom cloze probabilities og N400, og nylig forskning har funnet korrelasjoner mellom cloze probabilities og sannsynlighetsmodeller fra datalingvistikk. Denne oppgaven har som mål å undersøke hvorvidt en mer direkte kobling mellom slike kombinerte modeller og N400 finnes, med hypotesen at lave sannsynligheter leder til store N400-responser og omvendt. Et antall forsøkspersoner leste en tekst manipulert ved hjelp av en slik modell, og en naturlig tekst, i et EEG-eksperiment. Resultatsanalysen viser at manipuleringene til en viss grad gav resultat som støtter hypotesen. Tilsvarende resultat ble funnet under resultatanalysen av responsene til den naturlige teksten. Ingen signifikante korrelasjoner ble oppdaget mellom N400 og den kombinerte modellen. Forbedringer for videre forskning involverer å blant annet forbedre eksperimentparadigmet slik at en storstilt EEG-inspilling kan gjennomføres for å konstruere en EEG-korpus. / Inom datalingvistiken har tidigare forskning visat lovande resultat vid kombinering av ordrumsmodeller och n-gramsmodeller. Detta är av speciellt intresse när det är önskvärt att ha en modell som fångar både semantisk och syntaktisk information. Ett potensielt användningsområde för en sådan modell finns inom psykolingvistiken, där en neural respons kallad N400 visat sig uppstå i situationer med semantisk inkongruens. Tidigare forskning har upptäckt en stark korrelation mellan cloze probabilities och N400, medan en nyare studie har upptäckt en korrelation mellan cloze probabilities och sannolikhetsmodeller från datalingvistiken. Denna uppsats har som mål att undersöka huruvida en mer direkt koppling mellan sådana kombinerade modeller och N400 finns, med hypotesen att låga sannolikheter leder till stora N400-responser och vice versa. Ett antal försökspersoner läste en text manipulerad med hjälp av en probabilistisk modell, och en naturlig text, i ett EEG-experiment. Resultatsanalysen visar att manipuleringen till viss grad gav resultat som stödjer hypotesen. Motsvarande resultat hittades under resultatanalysen av responserna till den naturliga texten. Inga signifikanta korrelationer blev upptäckta mellan N400 och den kombinerade modellen. Förbättringar för vidare forskning involverar bland annat att förbättra experimentparadigmet så att en storskalig EEG-inspelning kan genomföras för att konstruera en EEG-korpus.
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