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糖尿病专家系统开发.doc

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糖尿病专家系统开发.doc

1南京林业大学本科毕业设计(论文)题目糖尿病专家系统开发ExpertSystemofDiabetes学院信息科学技术学院专业计算机科学与技术学号0181104学生姓名崔文迪指导教师沈丽容职称讲师二OO五年五月二十五日2摘要专家系统是人工智能的一个分支,其发展速度非常快目前专家系统应用领域已经渗透到数学,物理,化学,医学等众多领域,几乎所有的专家系统都至少能将人的效率提高到10倍左右。本系统是根据人工智能和专家系统的理论知识,利用PowerBuilder9.0开发研制而成的,主要用于实现糖尿病诊断和治疗功能,从而达到利用计算机模拟人类专家诊疗糖尿病的目的。本文以糖尿病诊断和治疗的知识为基础,论述了专家系统开发的基本原理,结构,方法和过程,详细阐述了知识库、推理机、数据库、人机对话界面、解释器的设计和实现方法,力求将所学到的知识在专家系统开发中得以全面的应用,并使系统在实际的操作中能按照设计的要求安全有效正确的运行。关键字专家系统,数据库,PowerBuilder,人工智能3AbstractExpertsystemisabranchofartificialintelligence,itsdevelopmentspeedisveryfast,theapplicationofexpertsystemalreadypermeate,suchnumerousfieldsasphysics,chemistry,medicalscience,etc..Almostalltheexpertsystemscanbringpeoplesefficiencyuptoabout10timesatleast.ThissystemutilizesPowerBuilder9.0accordingtothetheoryknowledgeofartificialintelligenceandexpertsystem.Thepurposeofthesystemistorealizethediagnosisandtreatmentofdiabetesinordertoutilizecomputersimulationhumanexpert.Thepaperintroducetheprincipleandstructureofexpertsystem,Itexplainedthedesignofknowledgebase,reasoningmachine,database,interactiveinterface,explainingdeviceandimplementationmethodindetail.DuringthedevelopmenttheexpertsystemIuseallIhavelearnttomakethesystemruncorrectlyandeccectively.KeywordExpertsystem,thedatabase,PowerBuilder,artificialintelligence4目录前言..................................................................................................................................................1第一章人工智能概述.......................................................................................................................21.1人工智能定义.......................................................................................................................21.2人工智能应用领域...............................................................................................................21.3人工智能的研究方法............................................................................................................2第二章专家系统理论.....................................................................................................................42.1专家系统的定义...................................................................................................................42.2专家系统的产生和发展.......................................................................................................42.3专家系统特点.......................................................................................................................52.4专家系统的结构和工作原理...............................................................................................62.4.1专家系统的结构..............................................................................................................62.4.2专家系统的工作原理......................................................................................................72.5专家系统的建立...................................................................................................................92.5.1专家系统求解的问题.....................................................................................................92.5.2专家系统开发步骤.........................................................................................................9第三章糖尿病知识库设计...........................................................................................................103.1糖尿病基础知识..................................................................................................................103.2糖尿病专家诊断标准(知识库的设计).........................................................................123.2.1糖尿病确诊树...............................................................................................................123.2.2糖尿病分型树...............................................................................................................123.2.2糖尿病分型树...............................................................................................................133.2.3糖尿病急性诊断...........................................................................................................143.2.4糖尿病慢性诊断...........................................................................................................153.3二型糖尿病治疗方案........................................................................................................16第四章系统分析...........................................................................................................................174.1系统目标..............................................................................................................................174.2系统需求分析.....................................................................................................................174.3系统功能结构设计.............................................................................................................174.4设计思想..............................................................................................................................184.5开发环境介绍.....................................................................................................................194.5.1总体开发环境................................................................................................................194.5.2开发工具简介...............................................................................................................194.6数据库设计.........................................................................................................................204.7数据库连接..........................................................................................................................204.7.1程序设计时与数据库的连接........................................................................................204.7.2程序运行时与数据库的连接........................................................................................21第五章关键模块代码设计...........................................................................................................22

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