Suchergebnisse - Geometrical problems and computations Computations on discrete structures
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Information-Theoretic Thresholds for Planted Dense Cycles
ISSN: 0018-9448, 1557-9654Veröffentlicht: IEEE 01.02.2025Veröffentlicht in IEEE transactions on information theory (01.02.2025)“… We study a random graph model for small-world networks which are ubiquitous in social and biological sciences. In this model, a dense cycle of expected …”
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Complexity and Approximation for Discriminating and Identifying Code Problems in Geometric Setups
ISSN: 0178-4617, 1432-0541Veröffentlicht: New York Springer US 01.07.2023Veröffentlicht in Algorithmica (01.07.2023)“… We study geometric variations of the discriminating code problem. In the discrete version of the problem, a finite set of points P and a finite set of objects S are given in R d …”
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Introducing: The Libflame Library for Dense Matrix Computations
ISSN: 1521-9615, 1558-366XVeröffentlicht: IEEE 2019Veröffentlicht in Computing in science & engineering (2019)“… While we did not know it when we started, these techniques appear to solve many of the programmability problems that now face us with the advent of multicore and many-core architectures …”
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Contraction Bidimensionality of Geometric Intersection Graphs
ISSN: 0178-4617, 1432-0541Veröffentlicht: New York Springer US 01.02.2022Veröffentlicht in Algorithmica (01.02.2022)“… parameterized algorithms, kernelization, and approximation schemes. These results apply to a wide family of problems, namely problems that are contraction-bidimensional …”
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Greedy Geometric Algorithms for Collection of Balls, with Applications to Geometric Approximation and Molecular Coarse-Graining
ISSN: 0167-7055, 1467-8659Veröffentlicht: Oxford Blackwell Publishing Ltd 01.09.2014Veröffentlicht in Computer graphics forum (01.09.2014)“… The inner approximation problem is reduced to a geometric generalization of weighted max k …”
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Dominance for enclosure problems
ISSN: 1382-6905, 1573-2886Veröffentlicht: New York Springer US 01.11.2025Veröffentlicht in Journal of combinatorial optimization (01.11.2025)“… In this paper, we investigate an enclosure problem involving homothetic triangles. Specifically, the problem is to preprocess a given set of n homothetic triangles so that the triangles enclosing (or containing …”
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Stable Topological Signatures for Points on 3D Shapes
ISSN: 0167-7055, 1467-8659Veröffentlicht: Oxford Blackwell Publishing Ltd 01.08.2015Veröffentlicht in Computer graphics forum (01.08.2015)“… However, the vast majority of these descriptors concentrate on the local geometry of the shape around the point, and thus are insensitive to its connectivity structure …”
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PHOG: Photometric and geometric functions for textured shape retrieval
ISSN: 0167-7055, 1467-8659Veröffentlicht: Oxford, UK Blackwell Publishing Ltd 01.08.2013Veröffentlicht in Computer graphics forum (01.08.2013)“… In this paper we target the problem of textured 3D object retrieval. As a first contribution, we show how to include photometric information in the persistence …”
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Managing Chaos: Bridging the cultural divide between engineers and scientists working within the life sciences
ISSN: 1521-9615, 1558-366XVeröffentlicht: IEEE 2019Veröffentlicht in Computing in science & engineering (2019)“… Within the rather chaotic atmosphere of scientific research the adoption of a software process, and the structured development of software, can be out of …”
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Evaluating the ecological suitability for Olive tree in Sichuan using GIS and comprehensive fuzzy method: Methodological development and application
ISSN: 1521-9615, 1558-366XVeröffentlicht: IEEE 2019Veröffentlicht in Computing in science & engineering (2019)“… We have used the Geographic Information System’s (GIS) spatial analysis functions and comprehensive fuzzy sets to evaluate and analyze the ecological …”
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Tight Approximation Algorithms for Geometric Bin Packing with Skewed Items
ISSN: 0178-4617, 1432-0541Veröffentlicht: New York Springer US 01.09.2023Veröffentlicht in Algorithmica (01.09.2023)“… (ACM-SIAM symposium on discrete algorithms (SODA), pp 13–25, 2014. https://doi.org/10.1137/1.9781611973402.2 ). A well-studied variant of 2BP is Guillotine Two-dimensional Bin Packing …”
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Maximum Plane Trees in Multipartite Geometric Graphs
ISSN: 0178-4617, 1432-0541Veröffentlicht: New York Springer US 01.04.2019Veröffentlicht in Algorithmica (01.04.2019)“… A geometric graph is a graph whose vertices are points in the plane and whose edges are straight-line segments between the points …”
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Stable Region Correspondences Between Non-Isometric Shapes
ISSN: 0167-7055, 1467-8659Veröffentlicht: Oxford Blackwell Publishing Ltd 01.08.2016Veröffentlicht in Computer graphics forum (01.08.2016)“… We consider the problem of finding meaningful correspondences between 3D models that are related but not necessarily very similar …”
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Improved Algorithms for Distance Selection and Related Problems
ISSN: 0178-4617, 1432-0541Veröffentlicht: New York Springer US 01.06.2025Veröffentlicht in Algorithmica (01.06.2025)“… In this paper, we propose new techniques for solving geometric optimization problems involving interpoint distances of a point set in the plane …”
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Global optimization for generalized geometric programming problems with discrete variables
ISSN: 0233-1934, 1029-4945Veröffentlicht: Philadelphia Taylor & Francis Group 01.07.2013Veröffentlicht in Optimization (01.07.2013)“… For minimizing the problem, an equivalent monotonic optimization problem (P) with discrete variables is presented by exploiting the special structure of GGP …”
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Hierarchical Multiview Rigid Registration
ISSN: 0167-7055, 1467-8659Veröffentlicht: Oxford Blackwell Publishing Ltd 01.08.2015Veröffentlicht in Computer graphics forum (01.08.2015)“… The multiview registration problem is solved via hierarchical optimization defined on an undirected graph …”
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Universal Reconfiguration of Facet-Connected Modular Robots by Pivots: The O(1) Musketeers
ISSN: 0178-4617, 1432-0541Veröffentlicht: New York Springer US 01.05.2021Veröffentlicht in Algorithmica (01.05.2021)“… Configurations with the forbidden pattern do have disconnected reconfiguration graphs (discrete configuration spaces …”
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A Leaf Modeling and Multi-Scale Remeshing Method for Visual Computation via Hierarchical Parametric Vein and Margin Representation
ISSN: 1664-462X, 1664-462XVeröffentlicht: Switzerland Frontiers Media SA 26.06.2018Veröffentlicht in Frontiers in plant science (26.06.2018)“… Leaf modeling is a very difficult and challenging problem due to the wide variations in the shape and structures among different species of plants …”
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On Shannon entropy computations in selected plasticity problems
ISSN: 0029-5981, 1097-0207Veröffentlicht: Hoboken, USA John Wiley & Sons, Inc 30.09.2021Veröffentlicht in International journal for numerical methods in engineering (30.09.2021)“… This paper considers the problem of determining probabilistic entropy fluctuations, which are important for understanding uncertainty propagation in mechanical systems in the elasto‐plastic regime …”
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A velocity/stress mixed stabilized nodal finite element for elastodynamics: Analysis and computations with strongly and weakly enforced boundary conditions
ISSN: 0045-7825, 1879-2138Veröffentlicht: Amsterdam Elsevier B.V 01.10.2017Veröffentlicht in Computer methods in applied mechanics and engineering (01.10.2017)“… A new nodal mixed finite element is proposed for the simulation of linear elastodynamics and wave propagation problems in time domain …”
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