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CAS IR Grid
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长春光学精密机械与物... [3]
心理研究所 [1]
沈阳自动化研究所 [1]
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OAI收割 [5]
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会议论文 [5]
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2021 [1]
2018 [1]
2011 [2]
2010 [1]
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Applying Hierarchical Task Analysis to Improve the Safety of High-Speed Railway: how Dispatchers can better handle the Breakdown of Rail-Switch
会议论文
OAI收割
washigton, 2021-07
作者:
wang ziyue
;
zhangjingyu
;
sunxianghong
;
guo zizheng
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2021/06/18
China's high speed railway
Dispatcher
Hierarchical Task Analysis
Human errors
Breakdown of r ail s witch
Clustered Lifelong Learning via Representative Task Selection
会议论文
OAI收割
Singapore, November 17-18, 2018
作者:
Kong, Yu
;
Sun G(孙干)
;
Xu XW(徐晓伟)
;
Cong Y(丛杨)
  |  
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2018/12/27
Lifelong Learning
Clustering Analysis
Multi-task Learning
Transfer Learning
Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yan Y.
;
Gu S.
;
An Y.
;
Jin G.
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2013/03/25
The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper
an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed
the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization
and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile
the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted
and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well
its quality reduced about 20%
the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.
Approach for detecting crowd panic behavior based on fluid kinematic features and entropy (EI CONFERENCE)
会议论文
OAI收割
International Workshop on Advanced Computational Intelligence and Intelligent Informatics, IWACIII 2011, November 19, 2011 - November 23, 2011, Suzhou, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
Crowd panic behavior detection is an important task in video analysis and event recognition
whose purpose is to detect when the panic behavior happened and alarming the abnormal event timely. In this paper
the crowd is regard as a fluid
and the crowd motion is described by four fluid kinematic features (divergence
vorticity
gradient tensor invariant and rotation tensor invariant). To discriminate the panic event from normal crowd behavior
an information entropy is calculated as a high level feature based on the fluid kinematic features. Experimental results show that the entropy raised dramatically once a panic event happened.
Adaptive deformation estimation of moving target by weight image analysis (EI CONFERENCE)
会议论文
OAI收割
2010 2nd International Conference on Future Computer and Communication, ICFCC 2010, May 21, 2010 - May 24, 2010, Wuhan, China
Bai X.-G.
;
Dai M.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
An algorithm based on weight image analysis is proposed for adaptive deformation estimation of moving target in mean-shift tracking method. At the first
we get the weight image from the target candidate region. Then
we analyze the differences between the object and background. According to that
the area estimation of the target can be converted into the image segmentation task. To realize the adaptive segmentation and estimation
we define the threshold as the maximum variance between object and background. Combining the estimated area and covariance matrix
we can estimate the width
height and orientation of the object. The experimental results on three representative video sequences validate its robustness to the deformable estimation of the targets. 2010 IEEE.