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 16 of 16 for “"Space partitioning"”.
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Transformation of digital building models from boundary representation to tetrahedral space partitioning
… Boundary Representation (B-rep) to a tetrahedral space partitioning. This transformation addresses the limitations of current digital building models, especially their lack of explicit spatial relationship information among building components. Converting to a tetrahedral space partitioning …
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A State Space Partitioning Scheme for Vehicle Control in Pursuit-Evasion Scenarios
… a novel method of solving the HJI equation by partitioning the state space into regions of local, finite horizon control laws. As a result, the HJI equation can be reduced to solving the Hamilton-Jacobi-Bellman equation recursively as information is received about an opposing agent. Adding …
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Space-partitioning with cascade-connected ANN structures for positioning in mobile communication systems
The world around us is getting more connected with each day passing by – new portable devices employing wireless connections to various networks wherever one might be. Location aware computing has become an important bit of telecommunication services and industry. For this reason, the research …
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Performance of Algebraic Multigrid for Parallelized Finite Element DNS/LES Solvers
… leads to two parallelization approaches: Fourier space partitioning, where each processor individually and simultaneously solves a linear system, and physical space partitioning, where all processors collectively solve each linear system, sequentially advancing through Fourier modes. These two …
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Robust data partitioning for ad-hoc query processing
Data partitioning can significantly improve query performance in distributed database systems. Most proposed data partitioning techniques choose the partitioning based on a particular expected query workload or use a simple upfront scheme, such as uniform range partitioning or hash partitioning on …
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Developing approximation architectures for decision-making in real-time systems
… and cost structure of the problem. State-space partitioning, polynomials and other non-linear combinations of state parameters are also used in the ALP. However, design of these basis functions requires more trial-and-error. Simulation results show that control policy generated by the …
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Evaluación de niveles de campo electromagnético en entornos rurales/urbanos mediante técnicas de procesado geométrico y método MECA (Modified Equivalent Current Aproximation)
… Pirámide y Método Recorte) y la restante, Binary Space Partitioning, se emplea como referencia. La validación se efectúa a partir del cómputo de la sección recta radar de diversas geometrías canónicas y se contrasta con sus expresiones analíticas o bien con los resultados provistos por la técnica …
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Multicast Services for Multimedia Collaborative Applications
… for address management based on address space partitioning. Second, we study the problem of multicast routing and introduce a new approach that fits the real time nature of multimedia applications. Third, we explore the problem of congestion and flow control and introduce a new mechanism …
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Enabling scalable self-management for enterprise-scale systems
… and evaluates iManage, a novel system state-space based framework for enabling self-management of enterprise-scale systems. The system state-space, in iManage, is defined to be a collection of monitored system parameters and metrics (termed system variables). In addition, from amongst the …
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Design and Analysis of Defect- and Fault-tolerant Nano-Computing Systems
… millions of nanodevices, we have applied state space partitioning techniques and Belief propagation to scale these techniques. We have developed three toolsets based on these Markovian techniques. One of these toolsets has been specifically developed for the architectural exploration of …
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Responsible Spatial Data Science
… not generalize well for continuous geographical spaces and be confounded by spatial-auto-correlation. Similarly, existing frameworks may not be enough to ensure accountability (A) of location-based services. A lack of transparency (T) in the choice of spatial units may lead to misinformed …
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Técnicas de particionamiento multidimensional basadas en índices multiatributo en bases de datos paralelas
… in the execution of a query. Frequently, the partitioning of relations is made by a single attribute, sending tupies to different disks by depending on the valué of the tupie on the partitioning attribute. This way to fragment data is useful when the partitioning attribute is involved in the …
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Validated global multiobjective optimization of trajectories in nonlinear dynamical systems
… gravitational systems governing interplanetary space trajectories. Rigorous finite-dimensional global optimization methods based on space partitioning (branch and bound) do not directly extend to infinite-dimensional problems of trajectory optimization, lacking a way to exhaustively partition an …
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Effiziente SPH-basierte Flüssigkeitssimulation mit Visualisierung auf einem GPU-Cluster
… der SPH-Simulation wird eine Space-Partitioning-Datenstruktur benötigt. Die Arbeit verwendet eine spezielle Gitterdatenstruktur, in welche die Partikel einsortiert werden. Für die Konstruktion des Gitters wird ein atomarer Counting-Sort-Ansatz verwendet. Für die Berechnungen …
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Συνεργατικός έλεγχος δικτυωμένων ρομποτικών συστημάτων
Το κυρίως αντικείμενο της διατριβής αυτής είναι ο σχεδιασμός και η ανάλυση αποκεντρωμένων τεχνικών ελέγχου για επίτευξη μέγιστης κάλυψης από κινούμενα δίκτυα αισθητήρων. Λόγω των πολλών εφαρμογών αυτών σε αποστολές σχετιζόμενες με εξερεύνηση περιοχών ενδιαφέροντος, περιβαλλοντική δειγματοληψία, …