知识库系统

Four basic processes are analyzed in detail in network security decision,which are the base of NSDSS security decision. Then, developing strategies and methods are analyzed according to the objective and task of the system. Antetype method with RAD speciality is chosen to lead the developing process of the system. The structure of "Four-Base and Seven-System" of NSDSS is decided, based on which, the Function and Structure of Man-Machine Conversation system, General Management system, Data Base system, Model and Method Base system, knowledge base system, Causing and solving problems system are discussed. The basic theories and methods of each part are discussed. In the designing process of Model Base System, detailed analysis is given to the models of prediction, evaluation and management in the course of security decision. Moreover, basic process and method are discussed on question generation and solution. Then, detailed explanation is provided on the integration and implement of the system. After that, it is suggested that implement of the system should be carried through the process of the system.

论文首先对NSDSS涉及到的相关知识进行了讨论，详细分析了网络安全决策中的四个基本过程，这是NSDSS进行安全决策的基础；随后依据系统的目标和任务，对系统的开发策略和方法进行了分析，选择具有RAD能力的原型法指导整个系统的开发过程；确定了NSDSS"四库七系统"的整体结构；在此基础上，分别探讨了人机对话系统、通用管理系统、数据库系统、模型库和方法库系统、知识库系统、问题生成和求解系统的功能和结构，对各部件的基本原理和实现方法进行了论述；在模型库系统的设计过程中，对安全决策过程中运用到的安全预测、安全评估、安全管理等模型进行了详细的分析；仔细探讨了问题生成和求解的基本过程和方法；较为详细地阐述了系统集成和实施的有关问题，面向系统的成功实现，提出了将系统实施贯串于整个系统开发过程中的思想。

In the method of data analysis, the paper researches application of data mining and knowledge database, then design frame of data mining automatism class engine and knowledge decision.

在地面子系统的数据分析方法中，本文着重分析了数据挖掘技术和知识库系统在地面子系统的应用，并设计了数据挖掘自动分类引擎和知识决策的总体框图。

Knowledge base is one of the most important parts of fault diagnostic system.

知识库系统是故障诊断系统的核心之一。

The third is the evolution of knowledge: Because of the limit of human's cognition, knowledge in a person's brain keeps on evoluting. So the knowledge in an intelligent system which simulates cognition should also evolute. The evolution of knowledge in the CM includes the evolution of background knowledge and problem solving knowledge.

最后是系统知识进化的思想：因为人的认识能力的局限性，人的知识一直处于不断的进化过程中；体现知识模拟的知识库系统也应当是进化的；CM方法论中的进化过程包括背景知识进化和面向问题求解知识对象的进化，为此，CM方法论中定义了关于知识对象及其背景知识的一系列操作。

Using the uniform information channels and the technology of SOAP and COM/DCOM/COM+, information integration among tool management system, ERP/MRPII, CAM and CAPP system is come true. Finally, the distributed tool management system is developed in using mutil-tired Client/Server model as the frame of software. It has the functions of tool general management, searching milling cutting data for CAM by providing the milling cutting data e-book and computer aided tool selection for CAPP by using expert system. The tool management system offers the tool-coding function, too. The study of tool management system in DNC improves the level of tool management and the flexible of arranging production, haleness and the automatic extent of DNC systems.

依托DNC系统统一的、强大的通信平台和采用SOAP、COM／DCOM／COM~+信息集成技术，实现了刀具管理系统和上层管理系统ERP／MRPⅡ、CAD／CAM／CAPP系统、下层数控加工设备之间的信息集成，并采用三层Client／Server软件体系架构开发了相应的分布式刀具管理系统，实现了刀具的日常管理和调度功能，并建立了一套适合DNC系统使用的刀具编码原则和刀具辅助编码系统，应用铣削用量电子手册为CAM提供铣削用量查询功能和运用知识库系统为CAPP提供简易的粗铣加工使用的铣刀类型和刀具材料辅助选取功能，提高了DNC中刀具及相关信息的管理水平和刀具信息集成程度，达到实现DNC系统中刀具信息共享，提高DNC系统的生产组织柔性、健壮性及其自动化程度的目的。

The performance of knowledge-based system is decided by the quality of KBS.

知识库系统的质量决定了基于知识系统的性能。

At last the applications of Benchmarking in the KBS of auto developing are put forward.

最后介绍了目前Benchmarking技术在汽车开发知识库系统中的应用现状。

F., based upon a fuzzy logic of truth value restriction and fuzzy reasoning.

原则上它虽可用于较复杂的模糊逻辑知识库系统，但它的不完善性影响了算法的效率和在实际问题中的应用。

In this paper, searching technology of product information based on knowledge was researched. On the aspect of cognition, we researched the relation between user\'s cognition and designer\'s cognition, explored the knowledge flow in the process of product development, set up a matching model between user\'s knowledge and designer\'s knowledge, brought forward a modeling method based on users\' cognition, and set up a measurable model of product feature; coded and decoded product form element, set up a computer aided product form design system and image evaluating system based on the result of measurement. Accordingly, the product style and product image were systematically discussed, the recognition space of product style and image was constructed, the factors that affect product style and image were put forwards and analyzed, and the relation between product image and form elements was tested by experiments. Furthermore, the product automatic recognition technologies were discussed.And then, with the media of concept model and the kernel of parameter technology, a mathematic model that describing product layout design by constraints and rules was presented. Furthermore, a product design integration system based on imagery thinking including product fonii base system based on imagery thinking, product form design system based on imagery thinking and product form intelligent design system based on space layout were set up, which tested the system and provided a new way for product innovative design.

本文以产品特征描述目标对象——产品，研究一种基于知识的产品信息检索技术，在对产品的认知方面，研究了用户认知和设计师认知之间的关系，研究了产品开发过程中的知识流传递过程，建立了用户知识和设计知识之间的匹配模型，提出了一种基于用户知识的产品建模方法，它不但提取了产品的特征，还建立了产品特征量化模型，从而实现了产品知识的量化描述；对产品造型元素进行分解和编码，利用实验量化结果构造计算机辅助产品形状设计系统和心象评价系统；使用量表分析造型元素的心象尺度，构造输入、输出系统，建立了产品设计知识库咨询系统，可以方便用户和设计师来导入或查询产品设计方案；实现了对产品造型心象的分类知识库系统，便于设计师存储或查询，辅助设计师进行产品创新设计；通过实验量化了产品造型参数和产品心象参数之间的关系，并在此基础上建立了基于心象的产品形状设计系统，为产品空间布局方案智能生成系统奠定基础；在基于知识库的基础上建立了产品空间布局方案智能生成系统，通过更改概念产品造型参数，实现了产品设计方案的智能生成，使系列化的设计工作变得十分方便；将产品的心象运用到实际设计过程中，能够引导流行趋势，创造出产品无形的设计价值。

The applications of artificial intelligence are revolutionising the chemical industry, especially the branch called "Knowledge Based Systems".

人工智能的应用，尤其是被称作&知识库系统&的分支，正在使化学工业发生一场革命。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失