LANCZOS

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一种多尺度图像融合的冷冻电镜颗粒挑选方法
《计算机应用与软件》2024年第9期250-256,共7页何睦 钮焱 李军 
国家自然科学基金项目(61902116)。
当前主流的冷冻电镜颗粒挑选方法往往需要大量人工生成的训练集或者优质颗粒模板,或者颗粒挑选过程极为复杂。为了提高冷冻电镜颗粒挑选的效率,简化颗粒挑选流程,提出一种自动挑选颗粒方法,在图像预处理阶段使用基于Lanczos采样图像融...
关键词：冷冻电镜 颗粒挑选 Lanczos采样 图像融合 阈值分割 
Hierarchical Absorbing Interface Conditions for Wave Propagation on Non-Uniform Meshes
《Numerical Mathematics(Theory,Methods and Applications)》2022年第1期251-278,共28页Shuyang Dai Zhiyuan Sun Fengru Wang Jerry Zhijian Yang Cheng Yuan 
supported by the National Key Research and Development Program of China(Grant No.2020YFA0714200);by the National Natural Science Foundation of China(Grants No.12125103,12071362,12101062);by China Postdoctoral Sci-ence Foundation(Grant No.2019M660558);by the Natural Science Foundation of Hubei Province(Grant No.2019CFA007)。
In this paper,we propose hierarchical absorbing interface conditions to solve the problem of wave propagation in domains with a non-uniform space discretization or grid size inhomogeneity using Pad´e Via Lanczos(PVL)...
关键词：Wave equation absorbing interface condition spurious reflection Pad´e via Lanczos 
Effect of the Pixel Interpolation Method for Downsampling Medical Images on Deep Learning Accuracy
《Journal of Computer and Communications》2021年第11期150-156,共7页Daisuke Hirahara Eichi Takaya Mizuki Kadowaki Yasuyuki Kobayashi Takuya Ueda 
Background: High-resolution medical images often need to be downsampled because of the memory limitations of the hardware used for machine learning. Although various image interpolation methods are ap...
关键词：Downsampling INTERPOLATION Deep Learning Convolutional Neural Networks Medical Images Nearest Neighbor BILINEAR Hamming Window Bicubic LANCZOS 
Homological Solution of the Lanczos Problems in Arbitrary Dimension被引量：2
《Journal of Modern Physics》2021年第6期829-858,共30页Jean-Francois Pommaret 
When D is a linear partial differential operator of any order, a direct problem is to look for an operator D1 generating the compatibility conditions (CC)
《Annual Report of China Institute of Atomic Energy》2020年第1期60-61,共2页MA Hailiang ZHANG Qiaoli FAN Ping YUAN Daqing ZHU Shengyun 
The nuclear properties in the"island of inversion"and nuclear superdeformation around N,Z=20 are among the hot topics in the current nuclear physics studies.The multiple particlehole excitations across sd-pf major she...
关键词：GPU LANCZOS Model 
A BLOCK LANCZOS METHOD FOR THE CDT SUBPROBLEM
《Journal of Computational Mathematics》2019年第2期240-260,共21页Liqiang Song Wei Hong Yang 
In this paper, we present a block Lanczos met hod for solving the large-scale CDT subproblem. During the algorithm, the original CDT subproblem is projected to a smallscale one, and then some classical method is emplo...
关键词：CDT subproblem TRUST-REGION subproblem Block-Lanczos method Krylov SUBSPACE Error BOUNDS 
Stable Model Order Reduction Method for Fractional-Order Systems Based on Unsymmetric Lanczos Algorithm
《IEEE/CAA Journal of Automatica Sinica》2019年第2期485-492,共8页Zhe Gao 
supported by the National Natural Science Foundation of China(61304094,61673198,61773187);the Natural Science Foundation of Liaoning Province,China(20180520009)
This study explores a stable model order reduction method for fractional-order systems. Using the unsymmetric Lanczos algorithm, the reduced order system with a certain number of matched moments is generated. To obtai...
关键词：FRACTIONAL-ORDER SYSTEMS order REDUCTION STABLE REDUCED order SYSTEMS unsymmetric LANCZOS algorithm 
Error bounds of Lanczos approach for trust-region subproblem
《Frontiers of Mathematics in China》2018年第2期459-481,共23页Leihong ZHANG Weihong YANG Chungen SHEN Jiang FENG 
The authors would like to thank the anonymous referees for their careful reading and comments. This work of the first author was supported in part by the National Natural Science Foundation of China （Grant Nos. 11671246, 91730303, 11371102） and the work of the second author was supported in part by the National Natural Science Foundation of China （Grant Nos. 91730304, 11371102, 91330201）.
Because of its vital role of the trust-region subproblem （TRS） in various applications, for example, in optimization and in ill-posed problems, there are several factorization-free algorithms for solving the large-s...
关键词：Trust-region method trust-region subproblem （TRS） Lanczos method Steihaug-Toint conjugate-gradient iteration error bound 
Variable-grid reverse-time migration of different seismic survey data被引量：4
《Applied Geophysics》2017年第4期517-522,621,共7页Sun Xiao-Dong Li Zhen-Chun Jia Yan-Rui 
supported by the National Natural Science Foundation of China(No.41574098);National Key Research and Development Program(No.2016YFC06011050);National Oil and Gas Major Project(No.2016ZX05006-002)
With an increasing demand for high-resolution imaging of complex subsurface structures, thin layers and hidden reservoirs, borehole and cross-well seismic migration methods have become important. However, large differ...
关键词：Cross-well seismic variable-grid Lanczos filter reverse time migration 
A Finite Volume Unstructured Mesh Method for Fractional-in-space Allen-Cahn Equation被引量：1
《Chinese Quarterly Journal of Mathematics》2017年第4期345-354,共10页CHEN Ai-min LIU Fa-wang 
Supported by the National Natural Science Foundation of China(11105040,61773153);Supported by the Foundation of Henan Educational Committee(18B110003,15A110015);Supported by the Excellent Young Scientific Talents Cultivation Foundation of Henan University(yqpy20140037);Supported by the Science and Technology Program of Henan Province(162300410061)
Fractional-in-space Allen-Cahn equation containing a very strong nonlinear source term and small perturbation shows metastability and a quartic double well potential.Using a finite volume unstructured triangular mesh ...
关键词：fractional-in-space Allen-Cahn equation finite volume METHOD matrix transfertechnique preconditioned LANCZOS METHOD 
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