Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"hierarchical data structure"”.
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An Object-oriented design for hierarchical B-spline surfaces
… free-form surface modelling based on the hierarchical overlay methodology of [Forsey88]. This work is motivated by the need to provide a space-efficient representation of tensor-product hierarchical spline surfaces, multiple offset method support, and general surface representation. This …
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A Parallel Solution-Adaptive Method for Turbulent Non-Premixed Combusting Flows
… a more efficient manner. A flexible block-based hierarchical data structure is used to maintain the connectivity of the solution blocks in the multi-block mesh and to facilitate automatic solution-directed mesh adaptation according to physics-based refinement criteria. For calculations of …
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Distribution-independent hierarchical N-body methods
… and Greengard's methods depend on the same data structure, which we show is distribution-dependent. For the distribution that results in the smallest running time, we show that Greengard's algorithm is [omega](N log[superscript]2N) in two dimensions and [omega](N log[superscript]4N) in three …
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Incremental volume rendering using hierarchical compression
… on the thesis that efficient volume rendering of datasets, contained on the Internet, can be achieved on average personal workstations. We present a new algorithm here for efficient incremental rendering of volumetric datasets. The primary goal of this algorithm is to give average workstations the …
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Champs-Multizone and Virtual Building for Integrated Building Systems Design and Performance Evaluation
… monitoring system using a Virtual Building structure to facilitate fast comparison between design and montored performance.; 3) developing a methodology to use CHAMPS-Multizone for a green building design throughout its initial and final design stage. The CHAMPS-Multizone model consists of …
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A model of progress: the use of school data for improvement
… study was to investigate if student performance data would provide a model of progress for school improvement. It focused on student outcomes at the end of five years of their secondary education. The data was also used to evaluate the impact of a critical incident when the school was placed in …
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Attitudes Toward Immigrants and Immigration Policy in the United States: A Structural Approach
… Multilevel modeling is employed to analyze the hierarchical data structure. Results indicate social structure strongly predicts Americans' views of immigration policy, while shaping views of immigrants indirectly via its impact on social-psychological factors (perceived group threat and racism). …
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The Determinants of National College Entrance Exam Performance in China - With an Analysis of Private Tutoring
… Examination (NCEE) in China, using first hand data collected in a typical Chinese city in 2010. Three identification strategies including the instrumental variable model, the 3-level hierarchical linear model, and the Heckman two-stage method are applied in order to account respectively for the …
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Continual Learning of Object Classification in the Real World
… task but only when all the training data of classes to be learned are available at the same time. However, real-world data continually evolve through time, resulting in ever-changing learning configurations, e.g., new classes are added continuously. When a deep learning model loses …
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Preparing, Executing, and Designing Complex Clinical Trials Using Simulations
… have been accounted for; and lastly, using data-driven simulations to compare a proposed statistical model with an alternative model choice. Response adaptive randomization and Bayesian methods have grown rapidly, but these contribute to more complex study designs. Many challenging …