Results 21 to 30 of about 113,652 (316)

Identification of road links with the gravest network impacts when blocked concurrently

open access: yesEuropean Journal of Transport and Infrastructure Research, 2022
The identification of a combination of links which can cause the gravest impact on network performance, when interrupted simultaneously, is of great practical importance.
Rostislav Vodák   +2 more
doaj   +1 more source

Block algorithms for quark propagator calculation [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1998
Computing quark propagators in lattice QCD is equivalent to solving large, sparse linear systems with multiple right-hand sides. Block algorithms attempt to accelerate the convergence of iterative Krylov-subspace methods by solving the multiple systems simultaneously. This paper compares a block generalisation of the quasi-minimal residual method (QMR),
Pickles, Stephen M.   +1 more
openaire   +2 more sources

Research on Improving Camshift Algorithm about Target Tracking

open access: yesJournal of Harbin University of Science and Technology, 2018
The target is easily lost by using Camshift when the target is blocked or accelerated in complex background. The reason for this is Camshift is an algorithm that uses color characteristics to track the target.
QIN Yong   +3 more
doaj   +1 more source

Numerical analysis on the characteristics of particle orbits in quasi-axisymmetric stellarator

open access: yesAIP Advances, 2020
Based on the magnetic field configuration of the Chinese First Quasi-axisymmetric Stellarator (CFQS) device, three types of orbits such as the passing orbit, blocked trapped orbit, and localized trapped orbit are simulated using the Boris algorithm. Also,
C. Y. Su   +5 more
doaj   +1 more source

An improved contour symmetry axes extraction algorithm and its application in the location of picking points of apples

open access: yesSpanish Journal of Agricultural Research, 2015
The key problem for picking robots is to locate the picking points of fruit. A method based on the moment of inertia and symmetry of apples is proposed in this paper to locate the picking points of apples.
Dandan Wang   +5 more
doaj   +1 more source

Interleaved Learning in Elementary School Mathematics: Effects on the Flexible and Adaptive Use of Subtraction Strategies

open access: yesFrontiers in Psychology, 2019
Empirical findings show that students are often not capable of using number-based strategies and the standard written algorithm flexibly and adaptively to solve multi-digit subtraction problems.
Lea Nemeth   +4 more
doaj   +1 more source

Research on Storage Format Optimization of Sparse Matrix Based on GPU [PDF]

open access: yesJisuanji gongcheng, 2019
Sparse Matrix-Vector Multiplication(SpMV) calculation in sparse matrix storage format is inefficient,and the computing results of Blocked Row-Column(BRC) storage format lack reproducibility and certainty.To solve the problem,this paper proposes an ...
YANG Shiwei, JIANG Guoping, SONG Yurong, TU Xiao
doaj   +1 more source

New blocked all-pairs shortest paths algorithms operating on blocks of unequal sizes

open access: yesСистемный анализ и прикладная информатика
In real-world networks, many problems imply finding the All-Pairs Shortest Paths (APSP) and their distances in a graph. Solving the large-scale APSP problem on modern multi-processor (multi-core) systems is the key for various application domains.
A. A. Prihozhy, O. N. Karasik
doaj   +1 more source

The implementation and improvement of tracking algorithm with kernel correlation filter based on TMS320C6678

open access: yesDianzi Jishu Yingyong, 2018
Object tracking has become an important branch of computer vision currently. In recent years, because the tracking algorithm with kernel correlation filter uses the properties of circulant matrix, the main operation is element-wise product in the ...
Wang Yongjun   +3 more
doaj   +1 more source

Design and Calculation of Evaluation Index for Urban Road Anti-Blocking Ability

open access: yesPromet (Zagreb), 2023
Aiming at the lack of an anti-clogging ability index in the road network traffic evaluation index, an anti-clogging ability index was proposed to measure the anti-clogging ability of urban road traffic network: Κ-anti-clogging coefficient, which is used ...
Ronghu Zhou, Qin Ge
doaj   +1 more source

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