基于数据挖掘的知识发现在水电站优化调度中的应用研究

主要讨论基于数据挖掘技术的知识发现在水电调度系统中的应用，提出了基于数据挖掘的知识发现方法，建立了知识向量集的拓扑空间概念并提出了基于拓扑空间向量集的不确定性知识表示方法。     

机载系统通用故障诊断软件平台设计

针对现有机载系统故障诊断平台存在的诊断策略单一、诊断知识共享性差和平台通用性低等问题，设计了一款基于B/S架构的机载系统通用故障诊断软件平台。平台搭载基于模型、专家知识、数据驱动的故障诊断方法，实现了基于多种方法的故障诊断；基于数据库对系统结构知识、专家知识、数据与诊断结果进行统一管理，实现资源的共享与复用。以某型号无人机大气数据系统为例，验证了平台的有效性，其应用结果表明该软件平台有效提高了机载系统故障诊断自动化水平，具有很强的实用价值。     

第一原理与启发式知识协同作用的故障诊断系统

提出一种将第一原理与启发式知识相结合的故障诊断系统，该系统将基于第一原理的方法与传统的基于经验知识的方法协调统一起来。因此兼具两种方法的优点。     

基于知识联通的tutor-AI模型设计

为提高教学质量和效率，将基于知识本体的知识联通方法引入智能教学系统（Intelligent Tutor System，ITS）．介绍AI知识本体与问题上下文本体的创建和知识库设计，探讨两种基于本体的联通方法：基于概念主干的联通和基于〈属性，属性值〉对的联通．最后提出基于知识联通的tutor-AI模型，并分析该系统的教学质量．     

生产成本管理知识库系统开发工具的研究

根据生产成本管理知识的特点，提出了生产成本管理知识的表示方法，并且介绍了基于该表示方法的生产成本管理知识库系统的开发工具。     

基于本体和语义Web服务的供应链知识集成

运用本体论、语义Web、Web服务和多Agent等技术研究供应链系统知识集成的方法，提出了一个基于本体和语义Web服务的多Agent供应链知识集成架构，讨论了供应链系统中基于语义Web服务的智能服务机制和基于元本体和共享本体的多Agent协作方法。     

基于XML的知识集成中间件系统实现

基于XML的中间件技术与知识集成相结合，设计了一个基于XML的知识集成中间件系统结构．并详细讨论了系统主要功能模块的实现方法。     

基于需求分解的知识系统建模方法

通过对知识系统的需求分析及分解，将知识系统的知识划分为领域概念知识(概念本体)、系统知识(任务本体)、控制知识和解释知识四大部分，初步建立了各部分的实现框架和相应的策略，其中概念本体描述知识系统的静态知识，任务本体描述知识系统的动态知识。以一个简化农业种植结构配置知识系统为例，建立了系统的应用本体求解模型。这种基于需求分解的知识系统建模方法具有面向问题和应用、实用性强等优点。     

机械ICAD系统中知识组织方法的研究

在基于专家系统的智能ＣＡＤ系统中，知识的表示，组织和知识库管理是一个很重要的问题。它直接影响到设计的效率和设计质量。本文讨论了机械设计过程的特点，分析了设计对象中知识的不同使用目的，提出用统一的方式一表示设计知识和设计过程知识，并用面向对象和分组组织的方法来组织和管理知识库，基于这些方法，开发了机械智能ＣＡＤ支持工具－－ＴＦＭＩＣＡＤ系统，该系统既有较高的设计效率，又能保持对不同设计条件和不同问题     

基于知识的协同设计工作过程建模

提出了基于知识的工作流方法，对协同设计的过程进行建模。该方法采用可扩展的和可定制的知识模板对协作活动进行描述，它满足了协作过程管理、资源管理和知识管理的需要，并对协同系统的设计知识和过程知识的重用性提供支持。依据该模型，应用一种扩展的KQML语言实现了一个原型系统。最后对该系统的优缺点和将来的工作进行了讨论。     

产品的相似性推理:一种描述逻辑的方法

采用产品本体理论对设计进行本体标注，得到对应产品设计的形式化概念，在此基础上通过本体的推理——基于描述逻辑的知识推理，对产品进行分类．文中分别就设计的相似性和基于实例的设计中实例间的相似性推理提出了明确的算法，并通过实例进行了说明．     

基于实例推理方法的液压缸智能CAD系统研究

在机械产品设计阶段，设计者总是借助于已有实例或相似的实例来进行产品开发，针对这一特点，本文以液压缸设计为对象研究基于实例推理的设计方法，提出一种机械产品用实例结构与实例数据相结合的描述方法，论述产品零部件实例的分级描述模型和实例推理方法，实际应用表明，基于实例求解方式是开发系列化产品设计或改进设计智能ＣＡＤ系统的一种有效的推理方法。     

A reasoning method for a ship design expert system

Abstract: The ship design process is a highly data‐oriented, dynamic, iterative and multi‐stage algorithm. It utilizes multiple abstraction levels and concurrent engineering techniques. Specialized techniques for knowledge acquisition, knowledge representation and reasoning must be developed to solve these problems for a ship design expert system. Consequently, very few attempts have been made to model the ship design process using an expert system approach. The current work investigates a knowledge representation–reasoning technique for such a purpose. A knowledge‐based conceptual design was developed by utilizing a prototype approach and hierarchical decompositioning. An expert system program called ALDES (accommodation layout design expert system) was developed by using the CLIPS expert system shell and an object‐oriented user interface. The reasoning and knowledge representation methods of ALDES are explained in the paper. An application of the method is given for the general arrangement design of a containership.     

基于混合功能推理的机械系统概念设计的研究

给出了产品设计说明形式化的描述,应用P/T网对原型机构抽象结构进行表示,利用编码技术对功能要求、功能约束及结构约束进行编码,建立了原型机构知识库。在所提出的基于设计说明和问题解重定义的正、反向混合推理方法的基础上,采用功能相似性度量的控制策略,进行复杂机械系统的概念设计,完成整个概念空间的构建。最后用实例对推理过程的自动性及方法的有效性进行了验证。     

Universal triple I fuzzy reasoning algorithm of function model based on quotient space

Aiming at the deficiencies of analysis capacity from different levels and fuzzy treating method in product function modeling of conceptual design,the theory of quotient space and universal triple I fuzzy reasoning method are introduced,and then the function modeling algorithm based on the universal triple I fuzzy reasoning method is proposed.Firstly,the product function granular model based on the quotient space theory is built,with its function granular representation and computing rules defined at the same time.Secondly,in order to quickly achieve function granular model from function requirement,the function modeling method based on universal triple I fuzzy reasoning is put forward.Within the fuzzy reasoning of universal triple I method,the small-distance-activating method is proposed as the kernel of fuzzy reasoning;how to change function requirements to fuzzy ones,fuzzy computing methods,and strategy of fuzzy reasoning are respectively investigated as well;the function modeling algorithm based on the universal triple I fuzzy reasoning method is achieved.Lastly,the validity of the function granular model and function modeling algorithm is validated.Through our method,the reasonable function granular model can be quickly achieved from function requirements,and the fuzzy character of conceptual design can be well handled,which greatly improves conceptual design.     

Design candidate identification using neural network-based fuzzy reasoning

Conceptual design has profound impact on success of a product design. Identification of the best conceptual design candidate is a crucial step as design information is not complete and design knowledge is minimal at conceptual design stage. This paper presents a method for design candidate evaluation and identification using neural network-based fuzzy reasoning. The method consists of the following steps: (1) acquisition of customer needs and ranking of their importance, (2) establishment of measurable metrics and their relations with customer needs, (3) development of design specifications and initial evaluation of design candidates, and (4) evaluation and identification of design candidates based on design specifications and customer needs using neural network-based fuzzy reasoning. A case study is given to show the effectiveness of the proposed method and associated algorithms.     

Automatic Virtual Entity Simulation of Conceptual Design Results—Part Ⅰ:Symbolic Scheme Generation and Identification

The development of new products of high quality,low unit cost,and short lead time to market are the key elements required for any enterprise to obtain a competitive advantage.For shorting the lead time to market and improving the creativity and performances of the product,a rule-based conceptual design approach and a methodology to simulate the conceptual design results generated in conceptual design process in automatical virtual entity form are presented in this paper.This part of paper presents a rule-based conceptual design method for generating creative conceptual design schemes of mechanisms based on Yan's kinematic chain regeneration creative design method.The design rules are adopted to describe the design requirements of the functional characteristics,the connection relationships and topological characteristics among mechanisms.Through the graphs-based reasoning process,the conceptual design space is expanded extremely,and the potential creative conceptual design results are then dug out.By refining the design rules,the solution exploration problem is avioded,and the tendentious conceptual design schemes are generated.Since mechanical,electrical and hydraulic subsystems can be transformed into general mechansims,the conceptual design method presented in this paper can also be applied in the conceptual design problem of complex mechatronic systems.And then the method to identify conceptual design schemes is given.     

模块机器人及计算机辅助设计

本文利用新一代计算机辅助设计方法,开展模块机器 人的设计方法论和CAD系统的研究,旨在提出解决柔性加工系统的计算机辅助设计智能软件 的思路和框架．本文以模块机器人的设计为突破口,提出了以面向任务为特征、基于事例的 设计方法在机械概念化设计中的应用．论文中介绍了近年来发展迅速的模块机器人的标准模 块和基本拓扑关系,根据模块机器人概念化设计的特征,结合人工智能应用中基于事例的推 理机制,提出了面向任务和基于事例的计算机辅助设计方法和应用软件的框架,以及实现自 上而下的计算机推理的流程．文中还介绍了面向用户的机器人任务和工作环境的表示．     

基于产品动态模型的智能快速响应设计理论和方法研究

文中将产品动态模型应用于快速响应变型设计中,研究了快速响应变型设计智能化理论和方法,提出了采用规则推理和实例推理相结合的混合推理策略;并针对设计的过程性,将变型设计分为概念变型设计、装配变型设计和产品定义变型设计;最后分析了基于产品动态模型的智能变型设计过程。     

A functional approach to redesign

This paper describes a methodology to assist in the identification of possible conceptual design variants during redesign. The approach is based on functional reasoning and involves: (1) the structural and functional analysis of an existing design; (2) the production of abstract representations of functions and design entities using conceptual graphs; and (3) design interrogation based on a functional tree approach. The research reported in this paper also focuses on the definition and the representation of elementary mechanical functions. Extended Backus-Naur Form (EBNF) notations are used to structure in a computable form, the relevant information (or design knowledge) conceptualised in either the conceptual graphs or the functional trees. EBNF syntax is also used to formulate rules which aid the partial automation of the reasoning process. The EBNF notations can be mapped to any programming language. A diaphragm valve is used as a case study to demonstrate the approach.