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A Fast Dynamical Evolutionary Algorithm for Multi-Objective Mechanical Component Design

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A Fast Dynamical Evolutionary Algorithm for Multi-Objective ...

智能计算及其应用国际会议

作者： LIU Minzhong1 ZOU Xiufen2 CAI Zhihua3 KANG Lishan3 (1. College of Computer science Wuhan university Wuhan 430072 china) (2. College of Mathematics and statistics Wuhan university Wuhan 430072 china) (3. department of Computer science & technology china university of Geosciences Wuhan 430074 china)

In this paper, a fast dynamical multi-objective evolutionary algorithm (DMOEA) based on the principle of the minimal free energy in thermodynamics, was developed to solve mechanical component design p

关键词： multi-objective optimization evolutionary algorithm mechanical component design

Utility Indifference Pricing and Hedging of O-U Processes

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Utility Indifference Pricing and Hedging of O-U Processes

第十五届工业工程与工程管理国际会议

作者： Wang Jianping~(1 2) Zhang Xiangwei~3 Chen Xiangcheng~1 1 department of statistics Henan university of finance and Economics Zhengzhou P.R.china 450002 2 department of Information and Computational science Henan Agricultural university Zhengzhou P.R.china 450002 3 department of Mathematics Zhengzhou Normal College Zhengzhou P.R.china 450002

＜正＞The paper presents the indifference pricing and hedging of exponential utility function under O - U processes *** the dynamic programming approach,the utility indifference pricing and hedging strategy is obtained.

关键词： O-U Processes Utility Indifference Pricing Utility Indifference Hedging

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一种基于共轭矩阵的阵列扩展技术

通信学报 2004年第11期25卷 151-157页

作者：单志龙刘学斌韦岗华南师范大学计算机科学系广东广州510631 华南理工大学电子与信息学院广东广州510640

提出了一种新的基于共轭矩阵的阵列扩展技术,该技术可以对阵列的信号子空间进行扩展,从而可以估计更多的信号波达方向(DOA)。该方法首先对接收的阵列信号进行二阶统计量预处理,利用自相关函数的性质获得导向矩阵的共轭矩阵,然后构造出... 详细信息

提出了一种新的基于共轭矩阵的阵列扩展技术,该技术可以对阵列的信号子空间进行扩展,从而可以估计更多的信号波达方向(DOA)。该方法首先对接收的阵列信号进行二阶统计量预处理,利用自相关函数的性质获得导向矩阵的共轭矩阵,然后构造出一个新的伪快拍扩展矩阵,通过对该矩阵运用MUSIC-like算法可以比传统的MUSIC-like算法估计出的波达方向个数多50％,理论分析和仿真实验证明了本文结论。

关键词：阵列信号处理波达方向估计四阶累积量非高斯信号

The Market Competition,Law Enforcement,and Banking System’s Efficiency in china

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The Market Competition,Law Enforcement,and Banking System’s...

2012 National Conference on Information technology and Computer science

作者： Yu XIA department of Law,School of Politics & Law and Public Administration,Hubei university,Wuhan,china Xianliang Tian department of finance,School of Business,Hubei university,Wuhan,china

In economic literature,the benefit of competition is well recognized,for example,it could reduce monopoly rents and cost inefficiencies,and finally improve the welfare of the *** the case of banking system,the market competition in banking sector could improve efficiency of the banking system as a whole,and promote economic growth as a ***,the effect of competition on banking system’s efficiency hinges on some environmental factors,such as the efficiency of law *** this paper,we measure the level and evolution of bank system’s competition between 1996 and *** use of the micro data of Chinese commercial banks from 1996 to 2009,we choose the RP method to measure the competition level of china’s banking *** we study the relationship between market competition,law enforcement and Chinese banking system efficiency,which shows that higher market completion could lead to more efficient banking system,and this effect is more salient when law enforcement is more efficient.

关键词： Market Competition Law Enforcement Banking System china

Blind Channel Estimation Algorithm of Uplink for MC-CDMA System

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Blind Channel Estimation Algorithm of Uplink for MC-CDMA Sys...

2003 International Conference on Communication technology

作者： Bian Dongming Ran Chongsen department of communication and engineering PLAuniversity of information and technology Zhengzhou china Yi Xinying department of military simulation PLAuniversity of science and technology Nanjing china

A blind channel estimation algorithm of uplink is proposed in this paper by analyzing the received signal of uplink for MC-CDMA system. The proposed algorithm uses the second order statistics of the r

关键词： MC-CDMA channel estimation uplink multi-user

Research and Implement for Vehicle License Plate Recognition Based on improved BP Network

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Research and Implement for Vehicle License Plate Recognition...

2010 International Conference on Computer and Communication Technologies in Agriculture Engineering (CCTAE 2010)

作者： Zhiwen WANG1 2 1.department of Computer and Engineering Guangxi university of technology Liuzhou 545006 china Shaozi LI2 2.Cognitive science department of Xiamen university Xiamen 361005 china

In this article,BP network learning algorithm is improved by using momentum and genetic algorithm after analyzing the defects of the BP network learning *** the convergence rate of BP network is speeded up *** vehicle license plate character image is segmented and feature is extracted by edge detection using sobel *** then license plates of cars are automatically recognized by using improved BP neural *** algorithm can improve the speed and accuracy for the automatic identification of the license plates of vehicle.

关键词： BP network momentum genetic algorithm license plate location license plate character segmentation license plate character recognition

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基于居民实际支出数据的稳健性分析

天津师范大学学报（社会科学版） 2005年第1期25卷 23-28页

作者：孙宪华郭亚帆天津财经大学统计学系天津300222

统计作为一种科学原理和技术,对社会经济起着举足轻重的工具性作用。然而,传统的统计量在许多情况下都不具有很强的代表性,需要运用像切尾均值、茎叶图、M-估计量等多种稳健统计方法方可更全面、更准确、更清晰地反映居民支出总体的实... 详细信息

统计作为一种科学原理和技术,对社会经济起着举足轻重的工具性作用。然而,传统的统计量在许多情况下都不具有很强的代表性,需要运用像切尾均值、茎叶图、M-估计量等多种稳健统计方法方可更全面、更准确、更清晰地反映居民支出总体的实际水平和分布情况。

关键词：居民支出稳健性茎叶图 M-估计量

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中国科技统计发展历程

统计研究 2002年第7期19卷 16-17页

作者： National Bureau of statistics of china 人口和社会科技统计司

The paper discusses the development of technology statistics of *** author thinks that the start point of the statistics is high and the developing speed is fast even though the statistics started late and the foundation is *** statistics is directly connected to the international standards since its beginning,traces the development of the *** impacts positively on the macro decision making of *** has become the bright point to support the whole development of statistical affairs.

关键词：科技统计中国调查制度发展历史

The Boiler Tube Wall Thickness Quantitative Evaluation Fusing the Magnetic and Ultrasonic Technique

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武汉理工大学学报 2006年第S3期28卷 800-804页

作者： SONG Xiaochun~(1,2) HUANG Songling~2 ZHAO Daxing~1 (1.School of Mechanical Engineering,Hubei university of technology,Wuhan 430068,china, 2.State Key Lab ef Power Systems,department of Electrical Engineering,Tsinghua university,Beijing 100084,china) School of Mechanical Engineering Hubei University of TechnologyWuhan 430068China State Key Lab of Power Systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China State Key Lab of Power Systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China School of Mechanical Engineering Hubei University of TechnologyWuhan 430068China

Wall thickness is always a key index for boiler tube inspection in power plant,in order to improve the inspection efficiency and accuracy,a new method fusing the magnetic and ultrasonic technique was *** magnetic technique was used to do full inspection and locate the flaws,and the ultrasonic was employed to implement further quantitative inspection accu- *** comparing the precision of the polynomial,exponential and logarithmic function,the polynomial model was selected to fit the relations between the wall thickness and the peak value of magnetic signals,and the data measured by ultrasonic thickness meter was used to calibrate the model parameters online,the defect depth can be sized *** experimental results demon- grate that the model used in this system has better accuracy than the statistics relation model clearly,and it is also suitable for defect evaluation ***,it is unnecessary to have much more experimental data for the curve fitting technology,so it has better practicability than the other methods.

关键词： boiler tube main magnetic flux ultrasonic non-destructive testing