一个智能型模糊专家系统开发工具--IFEST

本文在对模糊推理问题分析抽象的基础上,讨论提出了一种具有普遍应用价值的模糊知识表示方法和相应的推理方法,并设计实现了一个具有智能引导功能的模糊推理专家系统开发工具--IFEST.IFEST采用智能引导的机制,用友好的、问答式的会话来逐步引导用户一步步地建立系统,并以图形化的方式展示系统知识库,极大地方便了模糊推理专家系统的构建.     

AN OPEN. SYSTEM APPROACH TO INTEGRATION OF EXPERT SYSTEMS

With the wide availability of expert system building tools, more and more expert systems have been built, and many of them are developed by noncomputer professionals. An important task for researchers in applied artificial intelligence is to find a way for an integrated use of these systems. In this paper, an approach to building an environment for conceptual integration of expert systems is discussed. This approach is originated from the requirements of the concept of open system as proposed by Hewitt. The implementation status of an experimental system is also briefly described.     

控制系统计算机辅助设计的专家系统AI技术与CADCS的结合

本文研究并实现了一种用于控制系统进行建模、分析、设计和仿真的专家系统.介绍了作者提出的一种分层专家系统的总体结构.详细阐述了两种知识库的内容及构成,列举了极点配置法校正的二级规则树.并通过例子说明了该专家系统的主要功能和特点.     

THE TECHNOLOGY TRANSFER OF EXPERT SYSTEMS Overcoming Barriers to Commercialization

Expert systems extend the current commercial advantage of information systems from clerical to intellectual applications. As expert systems increasingly find acceptance in the marketplace, the focus is no longer on successful research, but on successful project management. Return on investment is a critical factor that must be taken into account for a successful expert systems implementation. A great deal of preparation must be done, however, before technology transfer can be carried out in an organization. This article discusses the process of transferring expert systems technology.     

利用专家系统开发工具VP－EXPERT建造金属材料大气腐蚀防护专家系统的探索

依据金属大气腐蚀与防护知识、全国大气腐蚀网站积累的腐蚀数据、试验研究成果及专家经验，利用专家系统开发工具（外壳）ＶＰ－ＥＸＰＥＲＴ探索建造金属材料大气腐蚀防护智能辅助决策系统。作为计算机科学技术在我国腐蚀科学领域中应用的尝试，推动我国环境腐蚀科学的发展。     

网络翻译系统中的格式信息流处理方法研究

随着国际互联网络技术的迅速发展 ,网络机器翻译技术应运而生 .但由于网上信息流格式具有多样性和多变性等特点 ,使得网络机器翻译技术面临新的困难和挑战 .以网络实时翻译系统为问题研究背景 ,对网络格式信息流处理方法进行了深入研究和探索 ,提出了基于动态知识获取和上下文相关分析的格式信息流处理方法 .该方法在使用机器翻译系统中对 HTML格式信息流处理取得了令人满意的效果 .     

VERIFICATION OF QUALITATIVE PROPERTIES OF RULE-BASED EXPERT SYSTEMS

Frequently, expert systems are developed to operate in dynamic environments where they must reason about time-varying information and generate hypotheses, conclusions, and process inputs that can drastically influence the environment within which they operate. For instance, expert systems used for fault diagnosis and fault accommodation in nuclear power plants reason over sensor data and operator inputs, form fault hypotheses, make recommendations pertaining to safe process operation, and in crisis situations, could generate command inputs to the process to help maintain safe operation. Clearly, there is a pressing need to verify and certify that such expert systems are dependable in their operation and can reliably maintain adequate performance levels. In this article we develop a mathematical approach to verifying qualitative properties of rule-based expert systems that operate in dynamic and uncertain environments. First, we provide mathematical models for the expert system (including the knowledge-base and inference engine) and for the mechanisms for interfacing to the user inputs and the dynamic process. Next, using these mathematical models, we show that while the structure and interconnection of information in the knowledge base influence the expert system's ability to react appropriately in a dynamic environment, the qualitative properties of the full knowledge-base/inference engine loop must be considered to fully characterize an expert system's dynamic behavior. To illustrate the verification approach, we show how to model and analyze the qualitative properties of rule-based expert systems that solve a water-jug filling problem and a simple process control problem. Finally, in our concluding remarks, we highlight some limitations of our approach and provide some future directions for research.     

专家系统的软件工程建造方法

本文指出ＥＳ所固有的一些困难引起了ＥＳ的设计和维护上的困难，提出了ＥＳ的软件工程方法的观点、描述认知过程的知识说明和建造ＥＳ过程的ＰＬＷＦ模型，用来解决ＥＳ的设计阶段和维护阶段产生的问题。     

一种人工神经网模型及其在专家系统中的应用

本文提出了一种新的人工神经网模型,这一建立于感知机和线性机基础之上的多层网络模型,可用以处理模糊分类的问题,这个模型作为知识库,被应用于一个生产决策专家系统,在学习功能,运行速度,对新问题的适应性和对输入数据的容错性等方面,均优于原来的系统,取得了令人满意的效果。     

一种优化的分拣机包件位置修正系统设计

随着现代物流事业快速发展,传统人工分拣作业方式已不能满足现代物流分拣的需求。作为物流自动化核心产品的包件分拣机,在中国邮政乃至整个国内物流行业中占据重要地位。在包件分拣系统中,准确的上件位置影响到整个包件分拣系统的效率和性能。为了满足快递业的快速、高效分拣,提出一种优化的分拣机包件位置修正系统设计,很好地解决了包件上件不准的问题。该设计完善了包件分拣机技术,对节省劳动力、提高效率、减少错误率等方面都有着重要的意义。     

USING META-PROGRAMMING,CONSTRAINT LOGIC PROGRAMMING AND APPROXIMATE REASONING FOR EXPERT SYSTEMS DESIGN

Abstract

This paper presents an enhancement of the CARESS system—A Constraint Approximative Reasoning System Support—introduced in (Popescu and Roventa, 1994). CARESS is an experimental system with primarily two objectives:

(1)knowledge representation and manipulation techniques and to implement them in PROLOG III, and

(2) to develop a knowledge programming environment for building expert systems. We discuss here the use of meta-programming, constraint logic programming and approximate reasoning for the design of expert systems

It has already been proven that meta-programming and logic programming are powerful techniques for expert system design. Fuzzy logic can be used to model one kind of uncertainty. Constraint logic programming is useful for dealing with the constraints given by operations using fuzzy sets.     

THE REALITY AND FUTURE OF EXPERT SYSTEMS A Manager's View of AI Research Issues

Such issues as standards, operational performance, and system integration capabilities have hindered the development and implementation of expert system applications. Fuzzy logic, case-based reasoning, and commonsense modeling are among the new research areas that hold the most promise for a second wave of smart systems for business use, and this time the promise might become a reality.     

生物遗传育种专家系统

本文提出一个生物遗传智能模型假设,并用专家系统的方法模拟生物杂交育种过程,提出亲本选配规划.该系统包括表达遗传规律和育种专家经验的遗传杂交模型及杂交后代生代推理网络。本文以蚕育种为例,描述了系统的结构及知识表达方法.系统的通用性可适用于其它动植物的育种.     

几何构造分析专家系统—GSAES

几何构造分析是结构力学课程的重要基础知识，其特点是利用几何构造分析的基本规律，分析出几何结构的形态。几何构造分析专家系统ＧＳＡＥＳ就是用于帮助学生学习和掌握有关的几何构造分析基本规律和分析技巧的ＣＡＩ软件。该软件有四项主要功能：（１）示教功能：演示几何构造分析的基本概念、规律及该软件的使用方法；（２）获取信息：建立或选择所要分析结构的有关信息；（３）几何中构造分析：对该结构进行几何构造分析；（４）     

一种基于分析的非语言声音信号合成方法及其在多媒体系统中的应用

音频媒体在多媒体系统中起着非常重要的作用，但由于其存储需要巨大的空间，使得其应用受到了一定的限制。本文提出了一种基于分析的合成方法以便在多媒体系统中对非语言声音信号进行有效的存取。这种方法首先对非语言声音信号进行谐波分析，然后对所得到的时变振幅与频率等声音信号参数进行分段线性化。     

非线性系统Wiener模型辨识

本文采用不同幅值的三电平伪随机m序列作为输入信号,辨识了离散非线性系统Wiener模型的线性脉冲响应函数和非线性增益系数.同时讨论了参数估计的统计特性及其区间估计,并附有仿真结果.     

一类专家智能控制器的设计与实现

本文提出光导纤维拉丝过程张力控制的实时专家智能控制器。该控制器在 IBM—PC 微机系统上实现。张力闭环控制系统的良好运行结果表明,我们设计的专家智能控制器完全满足张力控制系统的要求。     

消力池优化设计专家系统总体框架构建与研究

本文主要讨论了消力池优化设计专家系统的总体设计。根据消力池的具体特点，知识规则的表示方法和推理机的推理方法的设计均采用面向对象技术。系统主要是以数据库、知识库、模型库为数据源，利用推理机推理出最优消力池。另外，系统有机集成了人工智能技术、图像处理技术、仿真技术、数据库技术、模式识别技术等先进技术。     

一种直接图像增强方法在医学影像分类中的应用

针对乳腺X线照片中所蕴含信息的特征提出采用一种新颖的直接同质增强方法来实现图像增强,算法与传统的直方图均衡化方法不同,既考虑了图像的局部区域又兼顾了图像的全局信息,从而可以在增强图像的同时又保留了图像中有用的信息.将算法作为预处理部分应用到乳腺X线照片的分类系统中,得到了较好的效果.