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A quasi-physical algorithm for solving the linear separation problem in n-dimensional space

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Journal of Central South university of technology 2001年第4期8卷 272-277页

作者： huang Jia yuan (college of computer science, huazhong university of science and technology, wuhan 430074, china) 1. college of computer science Huazhong University of Science and Technology 430074 Wuhan China

A quasi physical algorithm was proposed for solving the linear separation problem of point set in n dimensional *** original idea of the quasi physical algorithm is to find an equivalent physical world for the primitive mathematical problem and to observe the vivid images of the motion of matter in it so as to be inspired to obtain an algorithm for solving the mathematical problem. In this work, the electrostatics with two kinds of matter is found to be the equivalent physical world. As a result,the proposed algorithm is evidently more efficient and robust than the famous LMS algorithm and ETL algorithm. The efficiency of the quasi physical algorithm is about 10-50 times of the LMS algorithm’s for representative instances. A typical Boolean valued instance shows that it is hard for ETL algorithm but very easy for the quasi physical *** this instance, point set A and B is {000, 010, 011, 111} and {001,100}, respectively.

关键词： linear separation problem neural network algorithm quasi-physical method electrostatics

Personalized Emotion Space for Video Affective Content Representation

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wuhan university Journal of Natural sciences 2009年第5期14卷 393-398页

作者： SUN Kai,YU Junqing,huang Yue,HU Xiaoqiang,LIU qing college of computer science and technology,huazhong university of science and technology,wuhan 430074,Hubei,china college of computer science and technology Huazhong University of Science and Technology Wuhan 430074 Hubei China

A personalized emotion space is proposed to bridge the ＂affective gap＂ in video affective content understanding. In order to unify the discrete and dimensional emotion model, fuzzy C-mean （FCM） clustering algorithm is adopted to divide the emotion space. Gaussian mixture model （GMM） is used to determine the membership functions of typical affective subspaces. At every step of modeling the space, the inputs rely completely on the affective experiences recorded by the audiences. The advantages of the improved V-A （Velance-Arousal） emotion model are the per- sonalization, the ability to define typical affective state areas in the V-A emotion space, and the convenience to explicitly express the intensity of each affective state. The experimental results validate the model and show it can be used as a personalized emotion space for video affective content representation.

关键词： video affective computing personalized emotion space video affective content representation fuzzy C-means clustering (FCM) Gaussian mixture model (GMM)

An Tentative Taboo Search Algorithm for Job Shop Scheduling

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wuhan university Journal of Natural sciences 2006年第3期11卷 547-550页

作者： huang wenqi huang Zhi WANG Lei college of computer science and technology Huazhong University of Scienee and Technology Wuhan 430074Hubei China

An effective heuristic algorithm for solving the minimum makespan problem of job shop scheduling is presented. With a given feasible solution as a start point, we use Taboo Search technique to get a schedule for each neighbor of all its neighbors, and select the best one of the schedules as the new start point. We repeat the procedure, unless the new start point is not better than the proceeding one. To make sure of better results, we introduce reverse technique to the algorithm as well. The computational experiments of the 45 standard instances show that our algorithm yields better results than TSAB algorithm.

关键词： heuristics job shop scheduling Taboo search tentative reverse

Buckling Optimization of Curved Grid Stiffeners through the Level Set Based Density Method

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computer Modeling in Engineering & sciences 2024年第7期140卷 711-733页

作者： Zhuo huang Ye Tian Yifan Zhang Tielin Shi qi Xia State Key Laboratory of Digital Manufacturing Equipment and technology Huazhong University of Science and TechnologyWuhan430074China

Stiffened structures have great potential for improvingmechanical performance,and the study of their stability is of great *** this paper,the optimization of the critical buckling load factor for curved grid stiffeners is solved by using the level set based density method,where the shape and cross section(including thickness and width)of the stiffeners can be optimized *** grid stiffeners are a combination ofmany single stiffenerswhich are projected by the corresponding level set *** thickness and width of each stiffener are designed to be independent variables in the projection applied to each level set ***,the path of each single stiffener is described by the zero iso-contour of the level set *** the single stiffeners are combined together by using the p-norm method to obtain the stiffener *** proposed method is validated by several numerical examples to optimize the critical buckling load factor.

关键词： Stiffener buckling optimization shape and cross section level set based density

Application of the Wireless Digital Transmission technology in Remote ECG Monitoring System

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微计算机信息 2005年第11期 10-12页

作者： (Dept. of Control science && Engineering, huazhong university of science && technology ,wuhan 430074,china )(Dept.of computer science, Henan Mechanic and Electric Engineering college,Xinxiang 453002 ,china)Xu,Lixin Li,qingliang,Chen,Zhen qi,Xinbo Zhang,Xincheng

Heart disease is one of the main diseases menace human’s health. The limited monitoring ability and limited serving ability are shortcomings of the existing remote ECG(electrocardiograph) monitoring system. It is practical to bring ECG monitoring from hospital to home. A new method is introduced that the application of wireless digital transmission technology in remote ECG monitoring system. In the system, the portable ECG monitoring device to collect and transmit patient’s electrocardiogram signals and the device to transmit and receive ECG signals are designed by using the PTR2000. The method solves the remote collection and transmission of patient’s electrocardiogram signals, and creates the condition of the transmitting of patient’s electrocardiogram signals through the Broadband network.

关键词： Wireless digital transmission technology ECG monitoring system Broadband network transmission

Continued evolution of H10N3 influenza virus with adaptive mutations poses an increased threat to mammals

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Virologica Sinica 2024年第4期39卷 546-555页

作者： Shiping Ding Jiangtao Zhou Junlong Xiong Xiaowen Du wenzhuo Yang Jinyu huang Yi Liu Lihong huang Ming Liao Jiahao Zhang wenbao qi State Key Laboratory for Animal Disease Control and Prevention South China Agricultural UniversityGuangzhou510642China National Avian Influenza Para-Reference Laboratory Guangzhou510642China Key Laboratory of Zoonoses Ministry of Agriculture and Rural AffairsGuangzhou510642China National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control Guangzhou510642China Key Laboratory of Zoonoses Prevention and Control of Guangdong Province Guangzhou510642China State Key Laboratory of Agricultural Microbiology College of Veterinary MedicineHuazhong Agricultural UniversityWuhan430070China college of Animal science and technology Zhongkai University of Agriculture and EngineeringGuangzhou510550China

The H10 subtype avian influenza virus(AIV)poses an ongoing threat to both birds and ***,fatal human cases of H10N3 and H10N8 infections have drawn public *** 2022,we isolated two H10N3 viruses(A/chicken/Shandong/0101/2022 and A/chicken/Shandong/0603/2022)from diseased chickens in *** analysis revealed that these viruses were genetically associated with human-origin H10N3 virus,with internal genes originating from local H9N2 *** to the H10N8 virus(A/chicken/Jiangxi/102/2013),the H10N3 viruses exhibited enhanced thermostability,increased viral release from erythrocytes,and accumulation of hemagglutinin(HA)***,we evaluated the pathogenicity of both H10N3 and H10N8 viruses in *** found that viral titers could be detected in the lungs and nasal turbinates of mice infected with the two H10N3 viruses,whereas H10N8 virus titers were detectable in the lungs and brains of ***,the proportion of double HA Q222R and G228S mutations in H10N3 viruses has increased since ***,the functional roles of the Q222R and G228S double mutations in the HA gene of H10N3 viruses remain unknown and warrant further *** study highlights the potential public health risk posed by the H10N3 virus.A spillover event of AIV to humans could be a foretaste of a looming ***,it is imperative to continuously monitor the evolution of the H10N3 influenza virus to ensure targeted prevention and control measures against influenza outbreaks.

关键词： Avian influenza virus(AIV) H10N3 Evolution Pathogenicity

Large second-order optical nonlinearities of s-triazine derivatives: View from micro molecules to macro crystals

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science china Chemistry 2005年第3期48卷 203-209页

作者： FANG qi1, LEI Hong2, CUI Yuezhi3, huang Zhenli4, XUE Gang1 & YU wentao1 1. State Key Laboratory of Crystal Materials, Shandong university, Jinan 250100, china 2. School of Information science and Engineering, Shandong university, Jinan 250100, china 3. Department of Chemical Engineering, Light Industry college of Shandong, Jinan 250100, china 4. Key Laboratory of Biomedical Photonics, Ministry of Education, huazhong university of science and technology, wuhan 430074, china 1. State Key Laboratory of Crystal Materials Shandong University 250100 Jinan China 2. School of Information science and Engineering Shandong University 250100 Jinan China 3. Department of Chemical Engineering Light Industry College of Shandong 250100 Jinan China 4. Key Laboratory of Biomedical Photonics Ministry of Education Huazhong University of Science and Technology 430074 Wuhan China

Three s-triazine derivatives have been synthesized and their structures been de-termined. These are Compound I: 2,4-dimethyl-6-(p-N,N-dimethylaminostyryl)-s-triazine (abbre-viated to NMe-1), Compound II: 2,4-dimethyl-6-(p-N,N-diethylaminostyryl)-s-triazine (to NEt-1), and Compound III: 2-methyl-4,6-bis(p-N,N-dimethylaminostyryl)-s-triazine (NMe-2). NMe-1 and NEt-1 molecules belong to the D-π-A type with a one-dimensional charge-transfer character. NMe-1 crystallizes to centrosymmetric P1 space group, while NEt-1 to non-centrosymmetric polar Cc space group with all of the molecular charge-transfer axes taking the same orientation. Under the irradiation of 1064 nm fundamental laser, NEt-1 powder crystals radiate a 2-order harmonic light with an intensity 46.8 times that of urea. The Λ typed NMe-2 molecule, which has a two-dimensional charge-transfer character, crystallizes to polar P21 space group. Its powder crystals exhibit a 2-order harmonic intensity 46.2 times that of urea. The quantum chemical cal-culations and tensor analyses have been carried out to reveal the dependence of the macro 2-order nonlinear optical (NLO) efficiency on the micro 2-order NLO coefficients (β) and on the crystalline packing styles.

关键词： s-triazine derivatives, synthesis, structure, SHG intensities of crystals, βvalues of molecules.

Novel Local Search Method for the Traveling Salesman Problem

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Journal of Southwest Jiaotong university(English Edition) 2005年第1期13卷 1-4页

作者：黄文奇王磊 college of computer science and technology Huazhong University of Science and Technology Wuhan 430074 China

A new local search method for the traveling salesman problem based on an original greedy representation of solution space and neighborhood structure is proposed. First, a partial closed route that only consists of three cities is given; then other cities are added to this route by a greedy procedure successively. Implemented on a personal computer, this algorithm finds optimal solutions for 24 out of 27 standard benchmarks, and outperforms the Full Subpath Ejection Algorithm (F-SEC) proposed by Rego in 1998.

关键词： Traveling salesman problem Heuristics Local search

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秘密共享新个体加入协议的安全性分析与改进

通信学报 2009年第10期30卷 118-123页

作者：许静芳崔国华程琦张志华中科技大学计算机学院信息安全实验室湖北武汉430074 武汉市数字工程研究所湖北武汉430074

针对一个秘密共享新个体加入协议,具体地给出了2种攻击,使得不良的广播接收者可以很容易的恢复出t个旧成员的秘密份额si,进而恢复出新个体的秘密份额sn+1和主秘密S,并且证明了导致这2种攻击成功的根本原因。此外,提出了一个新的改进方案... 详细信息

针对一个秘密共享新个体加入协议,具体地给出了2种攻击,使得不良的广播接收者可以很容易的恢复出t个旧成员的秘密份额si,进而恢复出新个体的秘密份额sn+1和主秘密S,并且证明了导致这2种攻击成功的根本原因。此外,提出了一个新的改进方案,改进方案不仅弥补了原方案的安全缺陷,而且与已有的协议相比需要更少的通信量。

关键词：秘密共享新个体加入秘密份额恢复