作者机构：
[Zhou, Kang; Qin, Lei] Wuhan Polytech Univ, Sch Math & Comp, Wuhan 430023, Peoples R China.;[Qin, Lei] Huazhong Univ Sci & Technol, Sch Automat, Wuhan 430074, Peoples R China.
会议名称：
International Conference on Information Sciences, Machinery, Materials and Energy
会议时间：
2015-04-11
会议地点：
Chongqing
会议主办单位：
[Qin, Lei;Zhou, Kang] Wuhan Polytech Univ, Sch Math & Comp, Wuhan 430023, Peoples R China.^[Qin, Lei] Huazhong Univ Sci & Technol, Sch Automat, Wuhan 430074, Peoples R China.
会议论文集名称：
First international conference on information sciences, machinery, materials and energy: ICISMME 2015, April 11-13, 2015, Chongqing, China
关键词：
Multi-knapsack problem;Artificial Fish School Algorithm;coding
摘要：
Multi-knapsack problem (MKP) is one of the typical NP problem in optimization field, because the computing complexities of the traditional algorithms are high or they have slow convergence speeds, this paper proposes an improved artificial fish school algorithm (IAFSA) for MKP. Firstly, the integer coding was used in the input ways of knapsacks, secondly, IAFSA adopted the strategy of "random repair" to repair infeasible artificial fish coding and inadequate artificial fish coding, and the coding after taking behaviors were improved and repaired, finally, IAFSA was verified by an example. Experimental results show that the advantage of IAFSA over other AFSA algorithms mainly lies in its faster convergence speed, stronger robustness, and its convergence to the optimal solution with greater probability.
会议名称：
9th International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR) - Pattern Recognition and Computer Vision
会议时间：
OCT 31-NOV 01, 2015
会议地点：
Enshi, PEOPLES R CHINA
会议主办单位：
[Liu, Renfeng;Zhang, Cong] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430023, Peoples R China.^[Tian, Jinwen] Huazhong Univ Sci & Technol, Sch Automat, Wuhan 430074, Peoples R China.
会议论文集名称：
Proceedings of SPIE
关键词：
Point matching;non-parametric;non-rigid;outlier;regularization
摘要：
Establishing reliable feature correspondence between two images is a fundamental problem in vision analysis and it is a critical prerequisite in a wide range of applications including structure-from-motion, 3D reconstruction, tracking, image retrieval, registration, and object recognition. The feature could be point, line, curve or surface, among which the point feature is primary and is the foundation of all features. Numerous techniques related to point matching have been proposed within a rich and extensive literature, which are typically studied under rigid/affine or non-rigid motion, corresponding to parametric and non-parametric models for the underlying image relations. In this paper, we provide a review of our previous work on point matching, focusing on nonparametric models. We also make an experimental comparison of the introduced methods, and discuss their advantages and disadvantages as well.
通讯机构：
[Li, Yaqin] W;Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Peoples R China.
会议名称：
9th International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR) - Parallel Processing of Images and Optimization; and Medical Imaging Processing
期刊：
Electronics, Communications and Networks IV - Proceedings of the 4th International Conference on Electronics, Communications and Networks, CECNet2014,2015年2:915-920
通讯作者：
Zhang, Cong(350692015@qq.com)
作者机构：
[Zhang, Cong; Wang, Heng; Li, Kun] School of Mathematic and Computer Science, Wuhan Polytechnic University, Wuhan, China
期刊：
Proceedings of SPIE - The International Society for Optical Engineering,2015年9814 ISSN：0277-786X
通讯作者：
Li, Yaqin
作者机构：
[Wang, Xuan] Wuhan Polytech Univ, Coll Hlth Sci & Nursing, Wuhan, Peoples R China.;[Li, Yaqin; Li, Shigao] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Peoples R China.
通讯机构：
[Li, Yaqin] W;Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Peoples R China.
会议名称：
9th International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR) - Parallel Processing of Images and Optimization; and Medical Imaging Processing
会议时间：
OCT 31-NOV 01, 2015
会议地点：
Enshi, PEOPLES R CHINA
会议主办单位：
[Wang, Xuan] Wuhan Polytech Univ, Coll Hlth Sci & Nursing, Wuhan, Peoples R China.^[Li, Yaqin;Li, Shigao] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Peoples R China.
摘要：
A fast set partitioning in hierarchical tree (SPIHT) algorithm based on the end scan threshold is proposed in this paper. Because the coding process of the SPIHT needs repeat scanning and sorting, so it takes a lot of extra time and storage space. In order to save the time and space overhead, the end scan threshold is used in encoding to terminate the scan process when the compression is enough. Experimental results show that the end scan threshold for the different images is the same in the case of the same compression ratio, and when the improved algorithm is used in the sorting process, it can reduce the data stream storage space in coding and the time consumption and decoding. In addition, the quality of reconstructed image is equivalent to SPIHT algorithm.
期刊：
Modern Physics Letters B,2015年29(26):1550153 ISSN：0217-9849
通讯作者：
Zhang, Yong
作者机构：
[Li, Shi-Gao; Zhang, Yong] Wuhan Polytech Univ, Dept Math & Comp, Wuhan 430024, Peoples R China.
通讯机构：
[Zhang, Yong] W;Wuhan Polytech Univ, Dept Math & Comp, Wuhan 430024, Peoples R China.
关键词：
Cellular automation;multi-fractal spectrum;vehicle distribution
摘要：
It is well known that traffic flow presents multi-fractal characteristics at time scales. The aim of this study is to test its multi-fractality at spacial scales. The vehicular cellular automation (CA) model is chosen as a tool to get vehicle positions on a single lane road. First, multi-fractal of vehicle distribution is checked, and multi-fractal spectrums are plotted. Second, analysis results show that the width of a multi-fractal spectrum expresses the ratio of the maximum to minimum densities, and the height difference between the left and right vertexes represents the relative size between the numbers of sections with the maximum and minimum densities. Finally, the effects of the random deceleration probability and the average density on homogeneity of vehicle distribution are analyzed. The results show that random deceleration increases the ratio of the maximum to minimum densities, and deceases the relative size between the numbers of sections with the maximum and minimum densities, when the global density is limited to a specific range. Therefore, the multi-fractal spectrum can be used to quantify the homogeneity of spacial distribution of traffic flow.
期刊：
Chinese Control Conference,2015年2015-September:294-298 ISSN：1934-1768
通讯作者：
Zhao Jiemei
作者机构：
[Zhao Jiemei] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430023, Peoples R China.;[Hu Zhonghui] China Shipbuilding Ind Corp, Res Inst 709, Wuhan 430074, Peoples R China.
通讯机构：
[Zhao Jiemei] W;Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430023, Peoples R China.
会议名称：
34th Chinese Control Conference (CCC)
会议时间：
JUL 28-30, 2015
会议地点：
Hangzhou, PEOPLES R CHINA
会议主办单位：
[Zhao Jiemei] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430023, Peoples R China.^[Hu Zhonghui] China Shipbuilding Ind Corp, Res Inst 709, Wuhan 430074, Peoples R China.
摘要：
This paper studies the stability of a class of time-varying delay singular systems. A new criterion for the stability of time-varying delay singular systems is derived by using the Lyapunov stability theory and linear matrix inequality. Then a passivity theorem is investigated. It is worth mentioning that the derivative of the time-varying delay do not need to be smaller than one. Finally, a numerical example is given to illustrate the effectiveness of the proposed method.
关键词：
teaching evaluation;method of weighted mean;classification
摘要：
The paper selects certain features then classifies students and calculates the average score of each type student, ultimately by means of the method of weighted mean, gives each type of student a certain weight, to process the data of teaching evaluation. Compared with traditional method, the results of above method are closer to teacher's true level, and the data processing is also more scientific and reasonable. This paper also points out the disadvantages of current assessment system and recommends universities can adopt the method of weighted mean to improve the accuracy and effectiveness in current system.
摘要：
A switching median and morphological filter is presented for removing impulse noise. In the proposed filter, the noise detector is first adopted to identify noise pixels by combining the morphological gradient based on the erosion and dilation operators with the top-hat transform. Then the detected impulses are removed by the hybrid filter, which combines the improved median filter using only the noise-free pixels with the conditional morphological filter using the improved morphological operations. Extensive simulations demonstrate that the proposed filter can realize accurate noise detection and it has significantly better restoration performance than a number of decision-based filters at the various noise ratios.
