Filters








248,418 Hits in 8.4 sec

Guest Editors' Introduction: Multigrid Computing

S. McCormick, U. Rude
2006 Computing in science & engineering (Print)  
M ultigrid methods are among the most important algorithms for computational scientists because they're the most efficient solvers for a wide range of problems.  ...  The modern era of multigrid methods began more than 30 years ago with the publication of Achi Brandt's seminal papers. 1,2 Although it was originally successful for solving elliptic partial differential  ...  An important issue is the constant in the complexity estimates because it ultimately decides which algorithm is best.  ... 
doi:10.1109/mcse.2006.109 fatcat:uas2az2i3ndwniygxmedk44d7m

Page 728 of American Society of Civil Engineers. Collected Journals Vol. 127, Issue 9 [page]

2001 American Society of Civil Engineers. Collected Journals  
Cahyono (1993) carried out a detailed study in which he compared 36 of the most popular finite-difference algorithms for solving the advection problem, including the TVD and ULTIMATE schemes.  ...  Stefan’ ABSTRACT: The present paper presents an accurate numerical algorithm for the simulation of 2D solute/heat transport by unsteady advection-diffusion-reaction.  ... 

Determination of Stresses and Ultimate Loads for Composite Plates with Elastic Inclusions

Jerzy Jaroszewicz, Olesya Maksymovych, Andrii Dzyubyk, Ihor Nazar
2017 Ukrainian Journal of Mechanical Engineering and Materials Science  
In the article, the algorithm for determination of stresses in anisotropic plates with elastic inclusions of another anisotropic material was developed on the basis of complex singular integral equations  ...  Main Material Presentation Let us consider the Hoffman strength criterion for composite materials, which is necessary for further calculations and takes into account the difference between the ultimate  ...  The efficiency and simplicity of use of the developed numerical algorithm are exemplified by calculation of stresses at inclusions of various shapes and by determination of the ultimate loads. compression  ... 
doi:10.23939/ujmems2017.02.038 fatcat:5de7dglqrvdttgcpamcjbac3rq

Design and Deployment of Visible-Thermal Biometric Surveillance Systems

Diego A. Socolinsky
2007 2007 IEEE Conference on Computer Vision and Pattern Recognition  
Sometimes systems must be deployed sooner than would allow for the development cycle of complex new algorithms, and must be more robust than most such algorithms can be expected to be on short notice.  ...  For the case 1  ...  Sometimes systems must be deployed sooner than would allow for the development cycle of complex new algorithms, and must be more robust than most such algorithms can be expected to be on short notice.  ... 
doi:10.1109/cvpr.2007.383531 dblp:conf/cvpr/Socolinsky07 fatcat:sfbl22uno5fztfnlmcoxk47zeu

Numerical limit analysis of the ultimate load bearing capacity of a pier foundation under complex load

H F Wang, X H Cheng, W. Anggono
2019 MATEC Web of Conferences  
In this paper, numerical limit analysis has been employed to analyze the load bearing capacity for the scheme of selection of a pier foundation of a 100 MW wind farm in certain collapsible loess geology  ...  The ultimate load bearing capacity design, as an important part in the design phase of this foundation form, is not sufficiently in terms of design theory and the checking method, especially for application  ...  [15, 16] calculated the undrained ultimate load bearing capacity and stability of a foundation pit support for a strip foundation under complex force conditions by applying the numerical limit analysis  ... 
doi:10.1051/matecconf/201927702018 fatcat:vu7xc4oupnaddggxfoghfp3hjy

Extraction of Numerical Residues in Families of Levelings

Wonder Alexandre Luz Alves, Alexandre Morimitsu, Joel Sanchez Castro, Ronaldo Fumio Hashimoto
2013 2013 XXVI Conference on Graphics, Patterns and Images  
We also present an efficient algorithm for ultimate attribute leveling computation by using a structure called tree of shapes.  ...  Our algorithm for computating ultimate attribute leveling is based on the fact (proved in this work) that levelings can be obtained by pruning nodes from the tree of shapes.  ...  for computing ultimate attribute leveling which is an extension of the algorithm for computing ultimate attribute opening presented by Fabrizio and Marcotegui [4] (differently to latter work, our algorithm  ... 
doi:10.1109/sibgrapi.2013.55 dblp:conf/sibgrapi/AlvesMCH13 fatcat:2kvw6wj2bbchrkzezj3gehffiq

Numerical integration of rate-independent BCC single crystal plasticity models: comparative study of two classes of numerical algorithms

Holanyo K. Akpama, Mohamed Ben Bettaieb, Farid Abed-Meraim
2016 International Journal for Numerical Methods in Engineering  
The first algorithm is based on the usual return-mapping integration scheme, while the second follows the so-called ultimate scheme.  ...  Although these algorithms are applied in this paper to Body-Centered-Cubic (BCC) crystal structures, they are quite general and suitable for integrating the constitutive equations for other crystal structures  ...  Ultimate algorithm For convenience, the Eulerian formulation is used in the development of the following version of the so-called ultimate algorithm.  ... 
doi:10.1002/nme.5215 fatcat:khjdtkgnavfcbicorkb4s3fpyu

Page 4723 of Mathematical Reviews Vol. , Issue 94h [page]

1994 Mathematical Reviews  
Although it can be proved that this algorithm ultimately converges quadrati- cally, there is no proof of its global convergence. However, the algorithm is shown to be backward numerically stable.  ...  For real matrices, a new version of the authors’ algorithm is introduced (al- gorithm 2) in order to avoid complex arithmetic.  ... 

Page 8549 of Mathematical Reviews Vol. , Issue 2001K [page]

2001 Mathematical Reviews  
Numerical expressions to compute the linear complexity of such sequences are given as well as practical rules to design 2nd-order nonlinear filterings which preserve the maximal linear complexity.”  ...  They proved that any ultimately periodic binary sequence can be produced by an FCSR, by developing an algorithm for finding the shortest FCSR that produces the given binary sequence.  ... 

Modeling of Insurance Data through Two Heavy Tailed Distributions: Computations of Some of Their Actuarial Quantities through Simulation from Their Equilibrium Distributions and the Use of Their Convolutions

Dilip C. Nath, Jagriti Das
2016 Journal of Mathematical Finance  
An attempt has also been made to obtain numerical values to the probability function for the number of claims until ruin in case of zero initial surplus under these claim severity distributions and this  ...  of ultimate ruin.  ...  The probability of ultimate ruin for the Burr XII distribution was computed through two numerical algorithms namely the stable recursive algorithm and the method of product integration in [13] .  ... 
doi:10.4236/jmf.2016.63031 fatcat:6szpwo2mm5hedajsf243vg7lqe

Estimating the Quality of an Object-Oriented Software System Using Graph Algorithms

N. Khanahmadliravi, H. R. Khataee
2012 International Journal of Computer and Electrical Engineering  
The proposed structural software metrics can estimate the quality of the ultimate software system based on the possible maximum relational complexities between the classes of its class diagram.  ...  Then, the graph algorithms are applied based on the longest path algorithm to propose a new set of structural software metrics.  ...  = 1 to n do for j = 1 to n do replace the longest path between vertices i and j to lij; end As the longest path algorithm has been solved for acyclic graphs with nonnegative weights [9, 10] , in this  ... 
doi:10.7763/ijcee.2012.v4.535 fatcat:wuqfhdoux5gvxajj6fiq267vnq

Preface to the Special Issue: Computational approaches for the modeling of complex crack path and patterns

Michael Kaliske, Anna Pandolfi
2019 International Journal of Fracture  
In this special issue, we collect the contributions of researchers and scientists that are working on advanced numerical algorithms to explore possible future developments of numerical methods for crack  ...  Recent formulations based on energetic reasoning opened an interesting avenue for the definition of new algorithms. Popular numerical techniques are based M.  ... 
doi:10.1007/s10704-019-00408-3 fatcat:fg7o24yq3fdf5hpr7qzzd66hma

Decidability of the HD0L ultimate periodicity problem [article]

Fabien Durand
2013 arXiv   pre-print
In this paper we prove the decidability of the HD0L ultimate periodicity problem.  ...  We did not compute the complexity of the algorithm provided by our proof of the HD0L ultimate periodicity problem.  ...  Recently, in [Bell, Charlier, Fraenkel, and Rigo 2009] , a positive answer has been given for a (large) class of numeration systems including for instance the Fibonacci numeration system.  ... 
arXiv:1111.3268v3 fatcat:pvcujbmo45c2zcwn2oxlgjifay

On the ultimate convex hull algorithm in practice

Mary M McQueen, Godfried T Toussaint
1985 Pattern Recognition Letters  
The results suggest that although the O(n log h) algorithms may be the 'ultimate' ones in theory, they are of little practical value from the point of view of running time.  ...  Here a modification of their algorithm is proposed that is believed to run in O(n) expected time for many reasonable distributions of points.  ...  Kirkpatrick and Seidel [13] have presented an algorithm for determining the planar convex hull with worst case time complexity O(n log h), sensitive to both n and h.  ... 
doi:10.1016/0167-8655(85)90039-x fatcat:4e7tf3vkyjervb3e3rv6ftxldm

A New High Order Algorithm with Low Computational Complexity for Electric Field Simulation

Hasan
2010 Journal of Computer Science  
Approach: Our recent research had found a new method with lower complexity and can simulate the problem faster than the existing FDTD algorithm.  ...  Problem statement: This research reported on new approach to improve speed of simulation time for free space electric wave propagation from an antenna.  ...  CONCLUSION The ultimate objective of this study was to develop a new algorithm that has lower overall computational complexity for finite-difference time-domain scheme.  ... 
doi:10.3844/jcssp.2010.769.744 fatcat:w4yvw6w7lfas3jffkbwjyl7sxi
« Previous Showing results 1 — 15 out of 248,418 results