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Stability analysis of cellular neural networks with time-varying delay

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Journal of Systems Engineering and Electronics 2009年第2期20卷 266-273页

作者： Wang Xingang1,4, Zhang Dongmei2.& Liu Jun3 1. coll. of information Engineering, Zhejiang Univ. of Technology, Hangzhou 310032. P. R. China 2. coll. of Science, Zhejiang Univ. of Technology, Hangzhou 310032. P. R. China 3. coll. of Science, Beihua Univ., Jilin 132.00, P. R. China 4. school of computer Engineering and Science, Shanghai Univ., Shanghai 2.0072. P. R. China coll. of information Engineering Zhejiang Univ. of Technology Hangzhou 310032 P. R. China school of computer Engineering and Science Shanghai Univ. Shanghai 200072 P. R. China coll. of Science Zhejiang Univ. of Technology Hangzhou 310032 P. R. China coll. of Science Beihua Univ. Jilin 132000 P. R. China

The global asymptotic stability of cellular neural networks with delays is investigated. Three kinds of time delays have been considered. New delay-dependent stability criteria are proposed and are formulated as the feasibility of some linear matrix inequalities, which can be checked easily by resorting to the recently developed interior-point algorithms. Based on the Finsler Lemma, it is theoretically proved that the proposed stability criteria are less conservative than some existing results.

关键词： cellular neural networks time-varying delay integral inequality

Shared latent dynamical structure for three-dimensional human pose estimation

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Science China(information Sciences) 2011年第7期54卷 1375-1382页

作者： TONG MingLei 1,HAN Hong 2.& ZHU Wu 1 1 school of computer and {2.,Shanghai University of Electric Power,Shanghai 2.1300,China 2.Institute of Intelligent {2. Processing,Xidian University,Xi’an 710071,China 1. school of computer and {2. Shanghai University of Electric Power Shanghai 201300 China2. Institute of Intelligent Information Processing Xidian University Xi’an 710071 China

In this paper,a shared latent dynamical model (SLDM) and its application in tracking 3D human motion from monocular videos are proposed by combining the ideas of Gaussian processes dynamical model with shared latent *** tracking in high-dimensional space,SLDM can map state space and observation space to a shared latent space of low dimensionality with associated *** off-line training,three mappings,including dynamical mapping in latent space and mappings from the latent space to both state space and observation space,are *** model can separate traditional human motion estimation in highdimensional space into two steps: In the first step,the shared latent dynamical variables are estimated;in the second step,the human pose of high dimension is *** in human motion tracking from monocular videos using simulations and real images demonstrate that this human tracking method is efficient.

关键词： visual media shared latent dynamical model 3D human pose estimation

Power allocation scheme for selfish cooperative communications based on game theory and particle swarm optimizer

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Science China(information Sciences) 2010年第9期53卷 1908-1912页

作者： ZHANG GuoPeng1*,YANG Kun2.& DING EnJie3 1school of computer Science and Technology,China University of Mining and Technology,Xuzhou 2.1116,China 2.0} of computer Science and Electronic Engineering,University of Essex Wivenhoe Park,Colchester CO_4 3SQ,UK 3school of information and Electrical Engineering,China University of Mining and Technology,Xuzhou 2.1116,China 1. school of computer Science and Technology China University of Mining and Technology Xuzhou 221116 China2. School of Computer Science and Electronic Engineering University of Essex Wivenhoe Park Colchester CO4 3SQ UK3. School of Information and Electrical Engineering China University of Mining and Technology Xuzhou 221116 China

In commercial networks,autonomous user nodes operating on batteries are assumed to be selfish to consume their energy solely to maximize their own benefits,e.g.,data *** this letter a two-user cooperative game is proposed to perform the power allocation for selfish cooperative communication *** the game,one selfish user node could trade its transmission power for the other ones cooperative relaying directly,and both user nodes are willing to achieve an optimal data-rate increase through cooperative *** find the Nash bargaining solution(NBS) of the game,a low-complexity numerical particle swarm optimizer(PSO) algorithm is also *** results indicate that the NBS of the game is efficient,in that both users could experience better performance than they work independently,and fair,in that the degree of cooperation of a user node only depends on how much contribution its partner can make to improve its own performance.

关键词： cooperative communication power allocation game theory Nash bargaining solution particle swarm optimizer

Noun Phrase Identification Based on Genetic Algorithm and Hidden Markov Model

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International Journal of Systems and Control

International Journal of Systems and Control 2007年第3期 221-227页

作者： Li Rong1, Zheng Jiaheng2.1.computer Department, Xinzhou teacher’s {2.ge, Xinzhou, Shanxi Province 034000,China 2.school of computer and information Technology, Shanxi University, Taiyuan, Shanxi Province 030006,China

To increase further the accuracy of noun phrase(NP) identification and utilize features of genetic algorithm(GA) and the hidden markov model(HMM),a novel method of Np identification is proposed which combines GA and HMM. The method is based on a high-performance POS(parts of speech) tagging. During the training phase, model parameters are gained by genetic algorithm. And during the identifying phase, an improved Viterbi algorithm for dynamic programming is first presented to identify the same hierarchy noun phrase, then the combined method of hierarchical scanning algorithm and Viterbi algorithm is brought forward to identify those recursive noun phrases. Experimental results show that this combined approach has achieved a high precision and recall rate of over 94%, fully inosculating the strength of genetic algorithm and hidden markov model. This proves that the combined method has much better identification effect than the unitary hidden markov model identification approach.

关键词： phrase recognition genetic algorithm hidden markov model viterbi algorithm hierarchical analysis

一种基于图同构和单向置换的报文摘要构造算法

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计算机工程与应用 2003年第25期39卷 86-87,120页

作者：李鸿朱洪宿州师范专科学校计算机信息系复旦大学计算机科学系上海200433 合肥工业大学计算机与信息学院合肥230009 复旦大学计算机科学系

为了保护信息的机密性和完整性,该文给出了一种新的报文摘要构造算法,这种新算法是基于图同构的。为了把报文与图联系起来,采用了基于单向置换的报文摘要生成算法,并证明了对该算法而言,不存在多项式时间的概率算法来找到一个“冲突”... 详细信息

为了保护信息的机密性和完整性,该文给出了一种新的报文摘要构造算法,这种新算法是基于图同构的。为了把报文与图联系起来,采用了基于单向置换的报文摘要生成算法,并证明了对该算法而言,不存在多项式时间的概率算法来找到一个“冲突”。最后给出了类似于MD5算法的构造实例。

关键词：图同构单向置换报文摘要构造算法

智能服务——Web服务和语义Web集成研究

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计算机工程与应用 2004年第9期40卷 143-146页

作者：孙军梅缪淮扣刘玲杭州师范学院信息工程学院杭州310012 上海大学计算机工程与科学学院上海200072

现有Web主要是为人使用Web上的内容设计,如何自动发现、执行、组合及互操作Web上的信息,提供智能服务,是Web服务努力的方向,Web服务虽然也制定了发现、描述、信息交换的标准,但这些标准不支持智能服务,其原因是现有Web服务缺乏清楚的语... 详细信息

现有Web主要是为人使用Web上的内容设计,如何自动发现、执行、组合及互操作Web上的信息,提供智能服务,是Web服务努力的方向,Web服务虽然也制定了发现、描述、信息交换的标准,但这些标准不支持智能服务,其原因是现有Web服务缺乏清楚的语义标记,该文提出将语义Web技术和Web服务结合来实现智能服务的思想,即为Web服务增加语义标记以实现Web服务的智能性,并就其可行性进行了阐述,最后给出了具体实现的方法。

关键词：智能服务 Web服务语义Web 本体

Energy-efficient power allocation for selfish cooperative communication networks using bargaining game

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Science China(information Sciences) 2012年第4期55卷 795-804页

作者： DING EnJie 1,ZHANG GuoPeng 1,LIU Peng 1 & YANG Kun 2.1 CUMT-IoT Perception Mine Research Center,China University of Mining and Technology,Xuzhou 2.1116,China 2.school of computer Science and Electronic Engineering,University of Essex Wivenhoe Park,Colchester Essex,CO4 3SQ,UK 1. CUMT-IoT Perception Mine Research Center China University of Mining and Technology Xuzhou 221116 China2. School of Computer Science and Electronic Engineering University of Essex Wivenhoe Park Colchester Essex CO4 3SQ UK

In commercial networks,user nodes operating on batteries are assumed to be selfish to consume their energy solely to maximize their own benefits,e.g.,data *** this paper,we propose a bargaining game to perform the power allocation for the selfish cooperative communication *** our system,two partner nodes can act as a source as well as a relay for each other,and each node is with an energy constraint to transmit one *** a selfish node is willing to seek cooperative transmission only if the data rate achieved through cooperation will not lower than that achieved through noncooperation by using the same amount of *** energy-efficient power allocation problem can be modeled as a cooperative *** proved that there exists a unique Nash bargaining solution (NBS) for the game by verifying that the game is indeed a bargaining ***,the two objectives,i.e.,system efficiency and user fairness specified in the selfish networks can be *** results show that the NBS scheme is efficient in that the performance loss of the NBS scheme to that of the maximal overall rate scheme is small while the maximal-rate scheme is *** simulation results also show that the NBS result is fair in that both nodes could experience better performance than they work independently and the degree of cooperation of a node only depends on how much contribution its partner can make to improve its own performance.

关键词： cooperative communication energy efficiency resource allocation cooperative game theory Nash bargaining solution

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粗集中不可分辨类算法求解实现

微机发展 2005年第1期15卷 14-16页

作者：程玉胜安庆师范学院计算机系

从原始信息系统出发,用不可分辨类的思想求解系统的核属性和约简是粗集理论的精华。因此,如何在计算机上实现这种思想关系到读者对粗集理论抽象概念的理解。文中利用MATLAB语言编程实现了不可分辨类算法。考虑该语言的特点,首先将原始... 详细信息

从原始信息系统出发,用不可分辨类的思想求解系统的核属性和约简是粗集理论的精华。因此,如何在计算机上实现这种思想关系到读者对粗集理论抽象概念的理解。文中利用MATLAB语言编程实现了不可分辨类算法。考虑该语言的特点,首先将原始信息系统转换为数字型矩阵,然后自定义用户函数attvalist,并结合MATLAB语言中丰富的矩阵与向量运算函数,不经复杂的编程完成了样本分类。

关键词：粗集不可分辨类信息系统

3D Human Motion Tracking by Using Interactive Multiple Models

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Journal of Shanghai Jiaotong university(Science) 2011年第4期16卷 420-428页

作者：仝明磊边后琴 school of computer and {2. Shanghai University of Electric Power

Of different model-based methods in vision based human tracking,many state of the art works focus on the stochastic optimization method to search in a very high dimensional space and try to find the optimal solution according to a proper likelihood *** works perform a framework of interactive multiple models (IMM) to track a human for challenging problems,such as uncertainty of motion styles,imprecise detection of feature points and ambiguity of joint *** paper presents a two-layer filter framework based on IMM to track human ***,a method of model based points location is proposed to detect key feature points automatically and the filter in the first layer is performed to estimate the undetected ***,multiple models of motion are learned by the prior motion data with ridge regression and the IMM algorithm is used to estimate the quaternion vectors of joints ***,experiments using real images sequences,simulation videos and 3D voxel data demonstrate that this human tracking framework is efficient.

关键词： interactive multiple models(IMM) human tracking automatic location occlusion prediction