The paper presents parallelization of a blended-function-based overlapping mesh technique and its implementation in the case of inviscid compressible flows around complex geometries. The overlapping grid technique is based on the partition of the domain into overlapping subdomain. The solution in each subdomain is obtained by an implicit algorithm and a characteristics-based method, while the b...

As the sound speed is innnite for incompressible ows, computation of the pressure constitutes the stiiest component in the time advancement of unsteady simulations. For complex geometries, eecient solution is dependent upon the availability of fast solvers for sparse linear systems. In this paper we develop a Schwarz precondi-tioner for the spectral element method using overlapping subdomains f...

As the characteristic propagation speed is innnite for unsteady incompressible ows, solving for the pressure operator is the most computationally challenging phase of ow simulation. EEcient solution is dependent upon the availability of fast solvers for sparse linear systems. In this paper we develop an Schwarz preconditioner using overlapping subdomains for the pressure. These local subdomain ...

End-to-end learned image and video codecs, based on auto-encoder architecture, adapt naturally to resolution, thanks their convolutional aspect. However, while coding high resolution images, these codecs face hardware problems such as memory saturation. This paper proposes a patch-based solution an end-to-end model, which aims remedy the limitation maintaining same quality full coding. Our meth...

Multi-sided surfaces are important in several areas of Computer-Aided Geometric Design, including curve network based design, approximation of triangular meshes, hole filling, and so on. In the majority of surface representations, the boundary constraints entirely determine the interior of these patches, however, frequently there is a need to have additional design freedom for shaping the surfa...

We propose a novel approach of three-dimensional hybrid grid methodology, the DRAGON grid method in the three-dimensional space. The DRAGON grid is created by means of a Direct Replacement of Arbitrary Grid Overlapping by Nonstructured grid, and is structured-grid dominated with unstructured grids in small regions. The DRAGON grid scheme is an adaptation to the Chimera thinking. It is capable o...

We address the problem of semantic segmentation, or multiclass pixel labeling, by constructing a graph of dense overlapping patch correspondences across large image sets. We then transfer annotations from labeled images to unlabeled images using the established patch correspondences. Unlike previous approaches to non-parametric label transfer our approach does not require an initial image retri...

This paper deals with structured grid generation using Floater’s parametrization algorithm for surface triangulation. It gives an outline of the algorithm in the context of structured grid generation. Then it explains how the algorithm can be used to generate a structured grid over a singular NURBS surface patch. This is an alternate method to the known carpeting method of reparametrization for...

In this paper, we study WSN design, as a multi-objective optimization problem using GA technique. We study the effects of GA parameters including population size, selection and crossover method and mutation probability on the design. Choosing suitable parameters is a trade-off between different network criteria and characteristics. Type of deployment, effect of network size, radio communication...