STRATEGIC KNOWLEDGE IN AN EXPERT SYSTEM FOR AGRICULTURE

Abstract

Most of the expert systems applied in vegetal pathology treat the problem of selecting treatment in a conventional manner, by means of production rules that associate to each pathology the most adequate chemical product. This makes it difficult to generate useful explanations. In order to generate satisfactory explanations the knowledge of the system must be based on the strategies used by human experts. This article introduces our approach for the identification and representation of strategic knowledge in an expert system for plague control in greenhouses. We present an introduction to the application domain and make an analysis of the strategic knowledge implied. We distinguish between the underlying strategy and the practical strategy used by the expert for the solution of the problem. From this we propose a preliminary architecture based on strategic reasoning agents.     

电网测试与分析专家系统

本文将专家系统技术与电力网参数检测系统相结合提出了基于专家系统主电力系统分析与诊断系统,它根据电网的实时检测数据,对电力系统进行分析并自动提出改进蝶网的方案和有关的设计参数。     

搅拌器选型专家系统的知识处理和系统实现

从知识获取,知识表达,采用模糊集理论处理领域中不确定性知识以及群组决策等方面,阐述了搅拌器选型专家系统知识处理的解决方案。由系统结构和操作过程,对整个专家系统如何实现进行了描述。     

自身免疫疾病辅助诊断专家系统

针对自身免疫疾病的诊断特点,描述了自身免疫疾病专家系统的设计思路与实现方案,讨论了专家系统建立过程中采用的关键技术,重点介绍了系统的结构框架、推理机制和诊断原理。     

ASCETA: AN EXPERT SYSTEM FOR PASSIVE NETWORK SYNTHESIS

An expert system for passive network synthesis and filter design, developed in an object-oriented environment, is presented. It has been implemented using a shell written in the language SMALL2ALK/V and is highly interactive. It has been conceived and developed mainly for educational purposes, and its implementation has demonstrated the suitability of the object-oriented approach and of the SMALLTALK environment for this kind of problem.     

石刻文物防环境浸蚀复合保护材料专家系统

利用神经网络ＢＰ算法,变步长学习函数和多线程技术构造了聚丙烯酸酯一环氧树脂互穿聚合物胶粘层保护材料和聚丙烯酸－聚有机硅氧烷互穿聚合物表面涂层材料的摩岩刻复合保护材料的合成最佳配比专家系统。     

定量问题求解专家系统——ESQPS

定量问题求解系统，是人工智能和专家系统研究领域的一个重要课题。本文介绍了ＥＳＱＰＳ－一个应用面向对象（ＯＯ）技术开发，可用于科学和工程技术领域中求解基本物理问题的专家系统，简述了该系统的知识表达和问题求解方法的设计思想和实现技术。     

AN EXPERT SYSTEM OF CONCEPTUAL DESIGN FOR WHEEL LOADERS

WLCDES is an expert system of wheel loader general sccheme design.In this paper,the system structure,conceptual design method,parameter design strategy and application of WL-CDES are introduced and disccussed.     

一种基于模型推理的故障诊断专家系统

本文首先腐化技术诊断类专家系统使用基于模型方法的理由，然后提出一种基于模型的知识库结构，最后给出相应的推理机制。     

圆柱齿轮减速器设计专家系统(CGREST)的开发

专家系统是一种计算机软件编制技术,主要用于模拟人类专家解决专门问题。本文介绍的圆柱齿轮减速器设计专家系统(简称OGREST)是利用人工智能、专家系统技术开发的一个实用型的设计专家系统,是国家“七五”规划重型机械基础件CAD的一个子项目。本文对专家系统技术在圆柱齿轮减速器设计中的应用理论和实用技术进行了探讨和研究。在设计思想、实现策略、知识采集、知识描述、知识运行、机械绘图以及在模拟人类设计专家的思维等诸方面,进行了新的尝试,并取得了令人满意的结果。     

基于神经网络的储层敏感性评价专家系统

本文介绍了利用神经网络技术对储层敏感性评价专家系统的设计及实现。该专家系统在知识获取和推理控制策略方面优越于传统的专家系统。     

石刻文物防环境浸蚀复合保护材料专家系统①

利用神经网络     

DEVELOPMENT OF AN EXPERT SYSTEM FOR CHRONIC OBSTRUCTIVE LUNG DISEASE

The long-term health care of patients suffering from chronic obstructive lung disease or high-risk persons entails time-consuming medical measures taken on the occasion of frequent return visits. It is tedious for the physician to execute this health-care program in a conventional manner. An expert system could effectively assist him in performing this challenging task. This article describes the technical concept of an expert system for this purpose based on the medical foundations outlined in a companion article (Jahn, 1990). The known expert systems for pulmonary diseases cannot sufficiently support the physician involved in this type of health care, since they are, among other things, limited to a “snapshot” approach to patient assessment. In contrast, the expert system now being developed handles temporal changes, gives advice on scheduling appropriate time intervals for return visits, and compares the actual response to therapy with the expected response.     

INTELLIGOLD - AN EXPERT SYSTEM FOR GOLD PLANT PROCESS DESIGN

Gold mining projects are a rare opportunity in the minerals industry. They require relatively small capital and give high profitability and fast return on investment compared with other mineral projects. To expand or maintain gold production, continuous development of new deposits and fast implementation of new mining sites are needed. Process design is one of the major issues. As simple and easily extractable ores are almost all exhausted, there is a need for a consistent approach to deal with increasing complexity and decreasing or stagnant gold prices. Process design must consider ore genesis, mineralogical characteristics, ore behavior in available metallurgical processes, linkage with the mining method, environmental impact, and economic issues. The type of work and environment involved makes this application ideal for using AI tools such as expert systems, fuzzy logic, and neural networks. This paper presents Intelligold, an expert system for project development teams to use at the preliminary evaluation and conceptual project stages. Information and knowledge from geology mineralogy, processing, and economics are organized, and recommendations on process options and estimated costs and revenue are given. The "knowledge-building" method is described, together with implementation and verification. Success in building this system suggests application to other ores such as copper and complex base metals.     

AN ITERATIVE INFERENCE MECHANISM FOR THE PROBABILISTIC EXPERT SYSTEM PES

Abstract

The paper suggests a new inference mechanism based on iterative use of the Bayesian inference scheme. The procedure iteratively computes optimal component weights of a distribution mixture from a class called generalized knowledge base. It is proved that the iterative process converges to a unique limit whereby the resulting probability distribution can be defined as the information-divergence projection of input distribution on the generalized knowledge base. The iterative inference mechanism resembles natural process of cognition as iteratively improving understanding of the input information.     

MEDICAL FOUNDATIONS OF AN EXPERT SYSTEM FOR CHRONIC OBSTRUCTIVE LUNG DISEASE

Physicians have already expressed widespread interest in using expert systems. Numerous medical expert systems have appeared, but only a few of them have proven successful. In this article, several criteria that are crucial to the success of an expert system in clinical practice are indicated. The medical foundations of an expert system now being developed according to these criteria are given. The intended purpose of this expert system is to be an effective instrument for the physician in performing the challenging task of caring for patients suffering from chronic obstructive lung disease or high-risk persons. Our aim is to create a system for everyday use that will have several features not provided by the contemporary expert systems in the field of pulmonary diseases. The technical concept of this expert system and especially the pivotal points of its implementation are described in a companion article (Quatember, 1990).     

用于给定药物的分析方法选择的专家系统设计

本文建立了一个用于药物分析方法选择的专家系统ESODA。ESODA由主控模块、I/O模块和专家系统骨架三个主要部分组成,并采用了产生式规则、框架、词典三种知识表示方法。该系统可在IBM PC及其兼容机上运行。ESODA主要可用于提供新药的定性鉴别、含量测定以及体液中药物及代谢物的测定方法。此外,利用专家系统骨架ESTOOL还可方便地构造其它专家系统。     

一种评估专家系统的研究

针对飞行器飞行状态的人工评估日趋复杂和困难的问题,将评估树技术和专家系统技术相结合,提出一种用于飞行器任务评估的综合分析模型。首先介绍系统总体结构设计,分析系统各模块的功能和联系;然后,提出一种知识表示模型以及知识获取与转换流程,建立基于数据库的知识库;最后,分析专家系统推理机制,通过不确定性推理提高系统的推理有效性。工程实践表明该专家系统是可靠有效的。     

一个基于实例推理的专家系统

该文研究了基于实例推理（Ｃａｓｅ－ＢａｓｅｄＲｅａｓｏｎｉｎｇ,简称ＣＢＲ）的机制,重点讨论了其在商业ＭＩＳ框架生成专家系统ＦＧＳＭ中的应用,结合ＦＧＳＭ系统的研制,给出了ＣＢＲ的一般实现过程。