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浏览/检索结果: 共10条，第1-10条 帮助

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Oscillatory orbits in the restricted planar four body problem 期刊论文  OAI收割
Nonlinearity, 2020, 卷号: 33, 期号: 12
作者:  Seara,Tere M;  Zhang,Jianlu
  |  收藏  |  浏览/下载：26/0  |  提交时间：2021/01/14
Reply to: "Comment on the paper 'On the triangular libration points in photogravitational restricted three-body problem with variable mass'" by Varvoglis, H. and Hadjidemetriou, J.D. 期刊论文  OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2012, 卷号: 340, 期号: 2, 页码: 209-210
作者:  Zhang, Ming-Jiang
收藏  |  浏览/下载：18/0  |  提交时间：2013/01/31
On the triangular libration points in photogravitational restricted three-body problem with variable mass 期刊论文  OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2012, 卷号: 337, 期号: 1, 页码: 107-113
作者:  Zhang, Ming-Jiang;  Zhao, Chang-Yin;  Xiong, Yong-Qing
收藏  |  浏览/下载：21/0  |  提交时间：2013/01/31
Orbit design for the Laser Interferometer Space Antenna (LISA) 期刊论文  OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2010, 卷号: 53, 期号: 1, 页码: 179-186
作者:  Xia Yan;  Li GuangYu;  Heinzel, Gerhard;  Ruediger, Albrecht;  Luo YongJie
收藏  |  浏览/下载：46/0  |  提交时间：2011/11/23
The co-orbital restricted three-body problem and its application 期刊论文  OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2010, 卷号: 53, 期号: 1, 页码: 171-178
作者:  Yi ZhaoHua;  Li GuangYu;  Heinzel, Gerhard;  Ruediger, Albrecht;  Luo YongJie
收藏  |  浏览/下载：24/0  |  提交时间：2011/11/23
A new class of symmetric periodic solutions of the spatial elliptic restricted three-body problem 期刊论文  OAI收割
SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 9, 页码: 1404-1413
作者:  Xu XingBo;  Fu YanNing
收藏  |  浏览/下载：30/0  |  提交时间：2011/12/08
A new early stopping algorithm for improving neural network generalization (EI CONFERENCE) 会议论文  OAI收割
2009 2nd International Conference on Intelligent Computing Technology and Automation, ICICTA 2009, October 10, 2009 - October 11, 2009, Changsha, Hunan, China
作者:  Liu J.-G.;  Wu X.-X.
收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25
As generalization ability of neural network was restricted by overfitting problem in the network's training. Early stopping algorithm based on fuzzy clustering was put forward to solve this problem in this paper. Subtractive clustering and Fuzzy C-Means clustering (FCM) were combined to realize optimal division of training set  validation set and test set. How to realize this algorithm in backpropagation (BP) network by utilizing neural network toolbox and fuzzy logic toolbox in MATLAB was dwelled on. Early stopping algorithm based on fuzzy clustering and other early stopping algorithms were applied in function approximation and pattern recognition problems in validation experiments. Experiments results indicate that early stopping algorithm based on fuzzy clustering has higher precision in comparison to other early stopping algorithms. Outputs of training set  validation set and test set are more accordant. 2009 IEEE.  
Coorbital restricted problem and its application in the design of the orbits of the LISA spacecraft 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2008, 卷号: 17, 期号: 7, 页码: 1005-1019
作者:  Yi, Zhaohua;  Li, Guangyu;  Heinzel, Gerhard;  Ruediger, Albrecht;  Jennrich, Oliver
收藏  |  浏览/下载：24/0  |  提交时间：2011/12/29
Methods for orbit optimization for the LISA gravitational wave observatory 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2008, 卷号: 17, 期号: 7, 页码: 1021-1042
作者:  Li, Guangyu;  Yi, Zhaohua;  Heinzel, Gerhard;  Ruediger, Albrecht;  Jennrich, Oliver
收藏  |  浏览/下载：34/0  |  提交时间：2011/12/29
A new algorithm of image segmentation for overlapping grain image (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
Image segmentation is primary issue in image processing  at the same time it is principal problem in low level vision in computer vision field. It is the key technology to process image analysis  image comprehend and image depict successfully. Aim at measurement of granularity size of nonmetal grain  a new algorithm of image segmentation and parameters calculation for overlapping grain image is studied. The hypostasis of this algorithm is present some new attributes of graph sequence from discrete attribute of graph  consequently achieve that pick up the geometrical characteristics from input graph  and new graph sequence which in favor of image segmentation is recombined. The conception that image edge denoted with "twin-point" is put forward  base on geometrical characters of point  image edge is transformed into serial edge  and on recombined serial image edge  based on direction vector definition of line and some additional restricted conditions  the segmentation twin-points are searched with  thus image segmentation is accomplished. Serial image edge is transformed into twin-point pattern  to realize calculation of area and granularity size of nonmetal grain. The inkling and uncertainty on selection of structure element which base on mathematical morphology are avoided in this algorithm  and image segmentation and parameters calculation are realized without changing grain's self statistical characters.