Results 11 to 20 of about 88,361 (282)

A sparse-grid isogeometric solver [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2018
Isogeometric Analysis (IGA) typically adopts tensor-product splines and NURBS as a basis for the approximation of the solution of PDEs. In this work, we investigate to which extent IGA solvers can benefit from the so-called sparse-grids construction in its combination technique form, which was first introduced in the early 90s in the context of the ...
J Beck, G Sangalli, L Tamellini
openaire   +6 more sources

Sparse Grids and Applications - Stuttgart 2014 [PDF]

open access: yes, 2016
Peng Chen and Christoph Schwab: Adaptive Sparse Grid Model Order Reduction for Fast Bayesian Estimation and Inversion.- Fabian Franzelin and Dirk Pfluger: From Data to Uncertainty: An E_cient Integrated Data-Driven Sparse Grid Approach to Propagate Uncertainty.- Helmut Harbrecht and Michael Peters: Combination Technique Based Second Moment Analysis for
A. Genz   +13 more
openaire   +3 more sources

Estimation with Numerical Integration on Sparse Grids [PDF]

open access: yes, 2006
For the estimation of many econometric models, integrals without analytical solutions have to be evaluated. Examples include limited dependent variables and nonlinear panel data models.
Heiss, Florian, Winschel, Viktor
core   +4 more sources

sparse-ir: Optimal compression and sparse sampling of many-body propagators

open access: yesSoftwareX, 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
doaj   +1 more source

Efficient Lazy Theta* Path Planning over a Sparse Grid to Explore Large 3D Volumes with a Multirotor UAV

open access: yesSensors, 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
doaj   +1 more source

SpaGrOW—A Derivative-Free Optimization Scheme for Intermolecular Force Field Parameters Based on Sparse Grid Methods

open access: yesEntropy, 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
doaj   +1 more source

Sparse grid distance transforms

open access: yesGraphical 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
openaire   +1 more source

Heterogeneous Distributed Big Data Clustering on Sparse Grids

open access: yesAlgorithms, 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
doaj   +1 more source

Suboptimal feedback control of PDEs by solving HJB equations on adaptive sparse grids [PDF]

open access: yes, 2015
International audienceAn approach to solve finite time horizon suboptimal feedback control problems for partial differential equations is proposed by solving dynamic programming equations on adaptive sparse grids. The approach is illustrated for the wave
Garcke, Jochen, Kröner, Axel
core   +3 more sources

A Multiple Target Localization with Sparse Information in Wireless Sensor Networks

open access: yesInternational 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
doaj   +1 more source

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