Results 11 to 20 of about 12,132 (264)
sparse-ir: Optimal compression and sparse sampling of many-body propagators
SoftwareX, 2023 We introduce sparse-ir, a collection of libraries to efficiently handle imaginary-time propagators, a central object in finite-temperature quantum many-body calculations. We leverage two concepts: firstly, the intermediate representation (IR), an optimal
Markus Wallerberger +17 more
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Sensors, 2019 Exploring large, unknown, and unstructured environments is challenging for Unmanned Aerial Vehicles (UAVs), but they are valuable tools to inspect large structures safely and efficiently.
Margarida Faria +4 more
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Entropy, 2013 Molecular modeling is an important subdomain in the field of computational modeling, regarding both scientific and industrial applications. This is because computer simulations on a molecular level are a virtuous instrument to study the impact of ...
Dirk Reith, Marco Hülsmann
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Sparse grid distance transforms
Graphical Models, 2010 We present a Sparse Grid Distance Transform (SGDT), an algorithm for computing and storing large distance fields. Although SGDT is based on a divide-and-conquer algorithm for distance transforms, its data structure is quite simplified. Our observations revealed that distance fields can be recovered from distance fields of sub-block cluster boundaries ...
Takashi Michikawa, Hiromasa Suzuki
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Heterogeneous Distributed Big Data Clustering on Sparse Grids
Algorithms, 2019 Clustering is an important task in data mining that has become more challenging due to the ever-increasing size of available datasets. To cope with these big data scenarios, a high-performance clustering approach is required.
David Pfander +2 more
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Shear turbulence on a sparse spectral grid [PDF]
Physical Review E, 2007 We simulate turbulence in a plane Couette geometry by a spectral method intermediate between full resolution and the complete elimination of small modes common in large eddy simulations. The wave number grid is sparse in spanwise and downstream direction, with a total number of modes proportional to Re(3/4) lnRe.
F, De Lillo, Bruno, Eckhardt
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A Multiple Target Localization with Sparse Information in Wireless Sensor Networks
International Journal of Distributed Sensor Networks, 2016 It is a great challenge for wireless sensor network to provide enough information for targets localization due to the limits on application environment and its nature, such as energy, communication, and sensing precision.
Liping Liu +3 more
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Sparse grid quadrature on products of spheres [PDF]
Numerical Algorithms, 2015 We examine sparse grid quadrature on weighted tensor products (WTP) of reproducing kernel Hilbert spaces on products of the unit sphere, in the case of worst case quadrature error for rules with arbitrary quadrature weights. We describe a dimension adaptive quadrature algorithm based on an algorithm of Hegland (2003), and also formulate a version of ...
Markus Hegland, Paul C. Leopardi
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Multilevel Quasi-Interpolation on Chebyshev Sparse Grids
ComputationThis paper investigates the potential of utilising multilevel quasi-interpolation techniques on Chebyshev sparse grids for complex numerical computations.
Faisal Alsharif
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On the dispersion of sparse grids
Journal of Complexity, 2018 For any natural number $d$ and positive number $\varepsilon$, we present a point set in the $d$-dimensional unit cube $[0,1]^d$ that intersects every axis-aligned box of volume greater than $\varepsilon$. These point sets are very easy to handle and in a vast range for $\varepsilon$ and $d$, we do not know any smaller set with this property.
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