Genetic fuzzy learning

A hybrid approach to fuzzy supervised learning is presented. It is based on a genetic-neuro learning algorithm. The mixed-genetic coding adopted involves only the premises of the fuzzy rules. The conclusions are derived through a least-squares solution of an over-determined system using the singular value decomposition (SVD) algorithm. The paper presents the results obtained with C++ software called GEFREX that implements the proposed algorithm. The main characteristic of the algorithm is the compactness of the fuzzy systems extracted. Several comparisons ranging from approximation problems, classification problems, and time series predictions show that GEFREX reaches a smaller error than found in previous works with the same or a smaller number of rules. Further, it succeeds in identifying significant features. Although the SVD is used extensively, the learning time is decidedly reduced in comparison with previous work     

INTRODUCTION TO THE SPECIAL ISSUE ON CASE-BASED REASONING IN THE HEALTH SCIENCES

There has been an explosion of interest in health sciences applications of case-based reasoning (CBR), not only in the traditional CBR in medicine domain, but also in bioinformatics, enabling home health-care technologies, CBR integration, and synergies between CBR and knowledge discovery. This special issue features the best papers from the third workshop on CBR in the health sciences, held at ICCBR-05 in Madrid. It is the third in a series of exciting workshops, the first two of which were held at ICCBR-03, in Trondheim, Norway, and at ECCBR-04, in Madrid, Spain. The nine high-quality papers introduced here represent the research and experience of twenty-two authors working in eight different countries on a wide range of problems and projects. These papers illustrate some of the major trends of current research in CBR in the health sciences, and represent overall an excellent sample of the most recent advances of CBR in the health sciences.     

The Old-Age Healthy Dependency Ratio in Europe

The aim of this study is to answer the question of whether improvements in the health of the elderly in European countries could compensate for population ageing on the supply side of the labour market. We propose a state-of-health-specific (additive) decomposition of the old-age dependency ratio into an old-age healthy dependency ratio and an old-age unhealthy dependency ratio in order to participate in a discussion of the significance of changes in population health to compensate for the ageing of the labour force. Applying the proposed indicators to the Eurostat's population projection for the years 2010-2050, and assuming there will be equal improvements in life expectancy and healthy life expectancy at birth, we discuss various scenarios concerning future of the European labour force. While improvements in population health are anticipated during the years 2010-2050, the growth in the number of elderly people in Europe may be expected to lead to a rise in both healthy and unhealthy dependency ratios. The healthy dependency ratio is, however, projected to make up the greater part of the old-age dependency ratio. In the European countries in 2006, the value of the old-age dependency ratio was 25. But in the year 2050, with a positive migration balance over the years 2010-2050, there would be 18 elderly people in poor health plus 34 in good health per 100 people in the current working age range of 15-64. In the scenarios developed in this study, we demonstrate that improvements in health and progress in preventing disability will not, by themselves, compensate for the ageing of the workforce. However, coupled with a positive migration balance, at the level and with the age structure assumed in the Eurostat's population projections, these developments could ease the effect of population ageing on the supply side of the European labour market.     

在结构与随机扰动下的大系统的稳定性

在本文中,我们给出了在结构与随机扰动下的动态大系统的稳定性分析,建立了这类大系统的依概率吸引性,依概率一致有界性,依概率大范围渐近稳定性,p吸引性,一致p有界性,和大范围渐近p稳定性的结论。这些结论的假设是由孤立子系统和与其联系的李亚普诺夫函数,受扰系统的结构和作用在子系统上的随机扰动表出的。     

Automata with Multivalued Input and Their Behavior in Random Environments

In the last quarter century, the interests of the investigators of automata have ranged over many problems, from algorithms for economical and reliable relay-type automata to abstract theory, including problems of representability of events in various automata. Among the many topics of that theory, much attention has recently been devoted to behavior of automata in competitive situations and games. The interest in these topics was stimulated by developments in physiology and psychology, by attempts to explain the development of purposeful behavior in animals and by the desire to simulate behavioral acts. Later, it was found that the results achieved in this field were useful in several complex control problems, in particular, the control of industrial plants, and this led to new problems in the theory. In this paper we shall sketch out an approach to the problem of behavior of automata in various situations (environments).     

汉语多重关系复句的关系层次分析

汉语多重关系复句的句法分析问题主要由复句中的关系分析和层次分析两部分组成.将多重关系复句中的层次分析作为研究对象.它是针对多种逻辑或并列关系,按照一定层次组成复杂主从关系复句而进行的关系层次分析过程.为了有效地形式化地表示多重关系复句的层次结构,提出了关系层次树的概念,并以此为基础构造文法,采用部分数据驱动的确定性移进-归约算法实现多重关系复句的关系层次分析.通过开放测试对计算机实现的多重关系复句句法分析器进行考察,93.56%的正确率使所提出的分析方法的有效性和正确性得到了充分的验证.     

The application of IT in organisations: Some trends and issues

Abstract

This paper describes some trends and issues in the application of information technology in organisations. Technology trends are outlined in the areas of computing power, telecommunications, networking, software and standards. Some trends in the applications of IT are described with respect to developments in information systems and office automation. Some differences in the likely role of IT in the industrialised and developing countries are discussed. The second half of the paper deals with issues in the management of IT applications in organisations, and issues are identified as being political, organisational and social in nature in addition to technical. A social systems framework is proposed for the analysis of these issues. Some specific IT issues are then discussed involving alternative stakeholder perspectives, the analysis of decision making processes, the process of consultation and communication and the organisational impacts of IT applications.     

Stability of nonlinear hybrid dynamical systems with time delay via sum of squares decomposition

Considering an infinite number of eigenvalues for time delay systems, it is difficult to determine their stability. We have developed a new approach for the stability test of time delay nonlinear hybrid systems. Construction of Lyapunov functions for hybrid systems is generally a difficult task, but once these functions are found, stability’s analysis of the system is straight-forward. In this paper both delay-independent and delay-dependent stability tests are proposed, based on the construction of appropriate Lyapunov-Krasovskii functionals. The methodology is based on the sum of squares decomposition of multivariate polynomials and the algorithmic construction is achieved through the use of semidefinite programming. The reduction techniques provide numerical solution of large-scale instances; otherwise they will be computationally infeasible to solve. The introduced method can be used for hybrid systems with linear or nonlinear vector fields. Finally simulation results show the correctness and validity of the designed method. Recommended by Editorial Board member Young Soo Suh under the direction of Editor Jae Weon Choi. The authors wish to express their thanks to Dr. A. Papachristodoulou and Dr. M. Peet for their helpful comments and suggestions. Mohammad Ali Badamchizadeh was born in Tabriz, Iran, in December 1975. He received the B.S. degree in Electrical Engineering from University of Tabriz in 1998 and the M.Sc. degree in Control Engineering from University of Tabriz in 2001. He received the Ph.D. degree in Control Engineering from University of Tabriz in 2007. He is now an Assistant Professor in the Faculty of Electrical and Computer Engineering at University of Tabriz. His research interests include Hybrid dynamical systems, Stability of systems, Time delay systems, Robot path planning. Sohrab Khanmohammadi received the B.S. degree in Industrial Engineering from Sharif University, Iran in 1977 and the M.Sc. degree in Automatic from University Paul Sabatie, France in 1980 and the Ph.D. degree in Automatic from National University, ENSAE, France in 1983. He is now a Professor of Electrical Engineering at University of Tabriz. His research interests are Fuzzy control, Artificial Intelligence applications in control and simulation on industrial systems and human behavior. Gasem Alizadeh was born in Tabriz, Iran in 1967. He received the B.S. degree in Electrical Engineering from Sharif University, Iran in 1990 and the M.Sc. degree from Khajeh Nasir Toosi University, Iran in 1993 and the Ph.D. degree in Electrical Engineering from Tarbiat Modarres University, Iran in 1998. From 1998, he is a Member of University of Tabriz in Iran. His research interests are robust and optimal control, guidance, navigation and adaptive control. Ali Aghagolzadeh was born in Babol, Iran. He received the B.S. degree in Electrical Engineering in 1985 from University of Tabriz, Tabriz, Iran, and the M.Sc. degree in Electrical Engineering in 1988 from the Illinois Institute of Technology, Chicago, IL. He also attended the School of Electrical Engineering at Purdue University in August 1998 where he was also employed as a part-time research assistant and received the Ph.D. degree in 1991. He is currently an Associate Professor of Electrical Engineering at University of Tabriz, Tabriz, Iran. His research interests include digital signal and image processing, image coding and communication, computer vision, and image analysis.     

项目教学法在中职计算机专业课教学中的应用

我国的通信技术和计算机网络技术在不断的进步,逐渐的对人民群众的生活方式、工作方式、学习方式有所改变,并且对于中职的计算机专业课教学产生一定的影响。在中职计算机中由教学而生成的主要目的就是,将学生实践能力与计算机理论知识水平提升。可是,在中职的计算机教育过程中,会因为多种多样的原因,促使在教学的过程中不能够拥有较高的效率,学生们不能够消化理论知识,在实践动手能力上也较为缺乏。所以,项目教学法作为创新型的教学模式,应用在中职计算机专业课教学中会拥有着重大的意义。     

产品质量设计在ERP系统中的开发应用

ERP系统在济钢的成功运行,使其无论在日常运营、资源配置上,还是生产的管理、采购、销售中,发挥着越来越重要的作用。面向客户、面向订单的全过程的产品质量设计,及其在生产过程中的跟踪,提高客户满意度,实现精准、高效、和谐的生产模式上起着决定性作用。     

从教育公平看农村教育信息化

在农村大力推行教育信息化，旨在缩小城市与农村的教育差距。而在实践过程中，由于城乡教育的不公平所带来的影响，教育信息化在某种程度上却扩大了城乡教育差距。城乡居民的经济收入、人口数量、文化基础的差异，政府投入政策与相应的制度失衡以及城乡教育资源差异都在一定程度上阻碍了农村教育信息化。     

浅谈ERP系统在中小型物流企业中的应用

ERP系统近年来在各行各业得到越来越广泛的应用,主要针对物流行业的具体特点,论述了ERP模块化系统开发的实施过程,物流行业中的ERP目前的应用现状,以及物流企业中ERP系统开发的关键点等,其结果能充分的发挥ERP系统在物流企业中的整体管理效益,使得企业物流,资金流,工作流,信息流能够很好的整合为一体。最后简要谈谈ERP在铜铁物流中的应用。     

浅谈ERP系统在中小型物流企业中的应用

ERP系统近年来在各行各业得到越来越广泛的应用,主要针对物流行业的具体特点,论述了ERP模块化系统开发的实施过程,物流行业中的ERP目前的应用现状,以及物流企业中ERP系统开发的关键点等,其结果能充分的发挥ERP系统在物流企业中的整体管理效益,使得企业物流,资金流,工作流,信息流能够很好的整合为一体。最后简要谈谈ERP在钢铁物流中的应用。     

Are My Neighbours Ageing Yet? Local Dimensions of Demographic Change in German Cities

Among the highly developed countries, demographic ageing is particularly advanced in Germany. Accentuated by migration, there is great regional variation in the progress of demographic change. Within urban areas, residential neighbourhoods differ considerably in their demographic composition and perspectives. Based on municipal data, this paper examines regional variability in the diversity and pace of neighbourhood-level ageing. Focusing on the Rhine-Ruhr conurbation in North Rhine-Westphalia, the analysis outlines at what pace ageing proceeds in a variety of neighbourhoods, which attract no constant influx of working-age migrants. After decades of suburbanisation, in the period from 1998 to 2008 regional migration concentrated on the central districts of large cities. More profoundly in the most prosperous cities growing in population than in other cities, childless working-age adults separate from other age groups and family types in selected central city quarters. The findings suggest that spatial differentials in ageing are likely to affect future location decisions and, thereby, regional and local prosperity.     

A comparison of models for fusion of the auditory and visual sensors in speech perception

Though a large amount of psychological and physiological evidence of audio-visual integration in speech has been collected in the last 20 years, there is no agreement about the nature of the fusion process. We present the main experimental data, and describe the various models proposed in the literature, together with a number of studies in the field of automatic audiovisual speech recognition. We discuss these models in relation to general proposals arising from psychology in the field of intersensory interaction, or from the field of vision and robotics in the field of sensor fusion. Then we examine the characteristics of four main models, in the light of psychological data and formal properties, and we present the results of a modelling study on audio-visual recognition of French vowels in noise. We conclude in favor of the relative superiority of a model in which the auditory and visual inputs are projected and fused in a common representation space related to motor properties of speech objects, the fused representation being further classified for lexical access.     

应用型本科院校嵌入式教学探讨

嵌入式系统是近年来发展很快的计算机方面的学科方向,并迅速渗透到控制、自动化、仪器仪表等学科。由于市场对嵌入式系统人才的巨大需求,许多高校都相继开设了嵌入式系统的相关课程。结合近年的教学实践,提出了嵌入式系统及应用的课程定位、目标,以及计算机专业课程定位的思考,分析了嵌入式教学存在的问题;从计算机专业本科教育的课程体系设置出发,分析了嵌入式系统课程的内容,教学的特点,提出了教学内容设置上遵循的原则以及嵌入式系统基础课程包括的教学内容,以及采取的教学方式;分析了目前实验教学存在的一些问题,提出了实验内容的设置方法;从嵌入式系统工程人员具备的知识与能力出发,提出了学生能力培养的一些做法。     

关于烟气在线监测装置SO2周期性异常的分析与处理

本文针对目前电厂脱硫烟气连续排放监测系统（CEMS）中SO2数据周期性波动,通过对历史数据曲线分析排查,发现取样探头温控仪故障导致取样探头加热器无法加热,烟气中水分遇冷凝结在管壁,管壁中的水分平时吸收烟气中的SO2,导致测量值偏低,待水珠汇聚变大流入下面带加热的取样管中后,水中溶解SO2的集中释放,导致数据在短期急剧上升,蒸发释放完后回归到原来的水平,形成这样一个周期性吸收和集中释放的过程。可见烟气取样管道温度保护环节在烟气测量中的作用非常重要。     

利用MODIS EVI时间序列数据分析福建省植被变化(2000~2017年)

以全国森林覆盖率最高的福建省为研究对象,利用2000~2017年夏季的MODIS EVI植被指数数据和气象与非气象因子进行协同分析,以揭示近17年福建植被的时空变化及其影响因子。结果表明:研究期内福建的EVI均值整体上升,从2000年的0.454上升至2017年的0.505,17 a间上升了11.2%,表明福建省的植被整体处于变好的状态,且在中部和西南部的变化最明显。相关分析表明,在研究期内,气象因子(气温和降水)对EVI变化的影响不显著,植被的变好主要为非气象因子的作用。EVI的提高主要得益于2003年福建省建设生态省后森林覆盖率的提高,并和2012年开始的水土流失治理有明显关系,这说明人类活动的积极作用对福建植被的变好起到了关键的作用。     

应用于CSCW协同控制机制的分析与设计

基于因特网环境的CSCW中协同控制的研究,提出一个协同控制机制的概念模式,依此模式发展一个协同控制协议,实际应用于CSCW环境,使得在一个多用户信息共享环境中的群体合作能顺利进行,并增进了CSCW系统的协同程度和确保数据的一致性,发展成为一个可以应用于CSCW环境的协同控制协议.通过对该协同控制模式的研究结果,建立有实际应用目标的CSCW环境,推广到远程协作学习、协同设计、协同会诊、协同创作、群体决策等应用领域.