Intranet/Internet 智能化媒体数据流传输软件——WebFORCE MediaBase

Ｉｎｔｒａｎｅｔ／Ｉｎｔｅｒｎｅｔ智能化媒体数据流传输软件——ＷｅｂＦＯＲＣＥＭｅｄｉａＢａｓｅＳＧＩ的ＷｅｂＦＯＲＣＥＭｅｄｉａＢａｓｅ定义了一个新型的可扩展、可靠的高性能服务器，用于Ｗｅｂ站点和应用程序。ＷｅｂＦＯＲＣＥＭｅｄｉａＢａｓｅ针对企业...     

为C语言增加两个直接读写FoxBase＋库文件的接口函数

本文在较为详细地分析了ＦｏｘＢａｓｅ＋（ＤｂａｓｅⅢ）的ＤＢＦ文件结构的基础上，利用ＴＵＲＢＯＣ２．０编写了两个在Ｃ语言程序中可直接读写ＦｏｘＢａｓｅ＋的库文件的函数Ｌｏａｄ（）和Ｓａｖｅ（）。它使得Ｃ语言与Ｆｏｘｂａｓｅ＋数据库可以混合编程。     

WebFORCE MediaBase获得1997年网络计算最佳联接奖

ＷｅｂＦＯＲＣＥＭｅｄｉａＢａｓｅ获得１９９７年网络计算最佳联接奖日前，ＳＧＩ的ＷｅｂＦＯＲＣＥＭｅｄｉａＢａｓｅ媒体服务器软件在美国拉斯维加斯举办的“ＮｅｔＷｏｒｌｄ＋Ｉｎｔｅｒｏｐ”上荣获了最佳视频服务器奖项中的网络计算最佳联接奖，从而巩固了其在...     

COMPUTER GRAPHIC ASSEMBLY TECHNOLOGY FOR COMPOUND-BODY

ＣＯＭＰＵＴＥＲＧＲＡＰＨＩＣＡＳＳＥＭＢＬＹＴＥＣＨＮＯＬＯＧＹＦＯＲＣＯＭＰＯＵＮＤ－ＢＯＤＹ￥ＳｈａｎｇＪｉａｎｚｈｏｎｇ；ＰａｎＣｕｎｙｕｎ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｅｃｉｓｉｏｎＭａｃｈｉｎａｒｙａｎｄｉｎｓｔｒｕｍｅｎｔＮａｔｉｏｎａ...     

APPROXIMATE MERGING OF BE ZIER CURVES

ＡＰＰＲＯＸＩＭＡＴＥＭＥＲＧＩＮＧＯＦＢｅＺＩＥＲＣＵＲＶＥＳＴｏｎｇＲｕｏｆｅｎｇ；ＨｕＳｈｉｍｉｎ；ＷａｎｇＧｕｏｚｈａｏＡｂｓｔｒａｃｔ：Ｉｎｔｈｉｓｐａｐｅｒ，ａｓｉｍｐｌｅｍｅｔｈｏｄｆｏｒｍｅｒｇｉｎｇｏｆＢｅｚｉｅｒｃｕｒｖｅｓｉｓｐ...     

IDE RAID控制卡和硬盘盒的安装

硬件的物理性安装。此处笔者以Ｐｒｏｍｉｓｅ公司的ＦａｓｔＴｒａｋ６６控制卡和ＦａｓｔＳｗａｐ６６硬盘盒为例讲解,一般情况下,我们购买的ＲＡＩＤ产品都是由这两种套件组成的。ＦａｓｔＴａｓｋ６６控制卡能够兼容ＵｌｔｒａＡＴＡ／６６模式的硬盘,卡上提供了两个ＩＤＥ插口和ＨＤＤ 　ＬＥＤ插口,在进行安装时,你只要将ＦａｓｔＴｒａｋ６６控制卡插在一个空闲的 ＰＣＩ插槽中（由于 Ｗｉｎｄｏｗｓ ９８是将 Ｆａｓｔ－Ｔｒａｋ６６控制卡看作一个ＳＣＳＩ控制器,因此在主板ＢＩＯＳ中要设置为ＳＣＳＩ启动,另外最好将Ｆａ…     

基于角色的访问控制模型分析

介绍了一种新型的访问控制机制－－基于角色的访问控制ＲＢＡＣ（Ｒｏｌｅ－Ｂａｓｅｄ Ａｃｃｅｓｓ Ｃｏｎｔｒｏｌ）的研究背景与基本特征,对它的规则模型ＲＢＡＣ９６与管理模型ＡＲＢＡＣ９７进行了重点描述,并在最后给出了一个设计实例。     

统计数据凑整问题的网络流算法

统计数据凑整问题的网络流算法金大勇，杨承恩（长沙铁道学院）ＮＥＴＷＯＲＫＡＬＧＯＲＩＴＨＭＳＦＯＲＴＨＥＤＡＴＡＲＯＵＮＤＩＮＧＰＲＯＢＬＥＭ￥ＪｉｎＤａ－ｙｏｎｇ；ＹａｎｇＣｈｅｎｇ－ｅｎ（ＣｈａｎｇｓｈａＲａｉｌｗａｙＩｎｓｔｉｔｕｔｅ）Ａｂｓｔ...     

COMPUTER AIDED DESIGN OF AIRCRAFT CABIN LAYOUT

ＣＯＭＰＵＴＥＲＡＩＤＥＤＤＥＳＩＧＮＯＦＡＩＲＣＲＡＦＴＣＡＢＩＮＬＡＹＯＵＴ￥ＹａｎｇＧｕｏｎｇ；ＨｕａｎｇＹｕｙｕ（ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＡｅｒｏｎａｕｔｉｃｓａｎｄＡｓｔｒｏｎａｕｔｉｃｓＢｅｉｊｉｎｇ．１０００８３）Ｐ．Ｒ．...     

EasyPack/S 8052F仿真器

ＥａｓｙＰａｃｋ／Ｓ ８０５２Ｆ仿真器是ＭＩＣＥＴＥＫ公司在Ｅａｓｙ－Ｐａｃｋ ８０５２Ｆ基础之上开发的新一代产品。 ＥａｓｙＰａｃｋ／Ｓ８０５２Ｆ仿真器继续支持８０５１系列的处理器,并在此基础上扩展了Ｂａｎｋ Ｓｗｉｔｃｈ功能。每个Ｂａｎｋ为６４ＫＢ,最多可将程序区扩大到２５６ＫＢ。其比较数据如表１所示。ＩＥａｓｘＰａｃｋ／Ｓ ８０５２Ｆ主模块 ＥａｓｙＰａｃｋ和ＥａｓｖＰａｃｋ／Ｓ主模块适用Ｂ前所有的ＥａｓｙＰａｃｋ ＩＣＥ ｃａｂｌｅ仿真头。主模块包括仿真控制模块（分别为ＥＣＢｌｌＳＡ－８０５２或…     

基于事例推理的电路诊断技术研究

本文首先简要介绍了基于事例推理(CBR)和基于规则推理(RBR)的优缺点，其次建立了一个CBR和RBR相结合的电路故障诊断系统，最后说明了该系统的基本结构及设计过程。     

An Interactive Case-Based Reasoning Approach for Generating Expressive Music

In this paper we present an extension of an existing system, called SaxEx, capable of generating expressive musical performances based on Case-Based Reasoning (CBR) techniques. The previous version of SaxEx used pre-fixed criteria within the different CBR steps and, therefore, there was no room for user interaction. This paper discusses the necessity of user interaction during the CBR process and how this decision enhances the capabilities and the usability of the system. The set of evaluation experiments conducted show the advantages of SaxEx's new interactive functionality, particularly for future educational applications of the system.     

基于案例与规则推理的故障诊断专家系统

设计并实现基于案例的推理(CBR)与基于规则的推理(RBR)的故障旋转机械诊断专家系统。采用CBR与RBR串行方式进行推理,优先通过案例匹配方式寻求诊断结果,在不适用情况下转入通用性规则推理,并将诊断结果反馈给知识库进行优化。应用结果表明,该系统诊断结果与实际相符合,且诊断速度快、针对性强。     

Adaptation methodology of CBR for environmental emergency preparedness system based on an Improved Genetic Algorithm

Emergency preparedness enables us to effectively handle sudden environmental events. In previous research, we have proposed to develop environmental emergency preparedness systems employing Case-Based Reasoning (CBR) technology, though developing such a CBR system has been stifled by a deficiency of cases and difficulties of case adaptation. In this paper, an Improved Genetic Algorithm (IGA) is put forward to resolve the issue of adaptability, and thus simultaneously overcoming the deficiency of cases.First we introduce the Frame method, which creates a case representation in accordance with the characteristics of, for instance, a sudden chemical leakage event and the system’s preparedness for treating this case. Then we present the principle of genetic algorithm (GA) for case adaptation. Next, we introduce an Improved Genetic Algorithm (IGA) that achieves case adaptation in the CBR system. The IGA overcomes simplex GA (SGA)’s defects including premature and slow convergence rate, and also enhances search efficiency for globally optimal solutions. The IGA employs technologies including the Multi-Factor Integrated Fitness Function, the Multi-Parameter Cascade Code method, the Small Section method for generation of an initial population, and Niche technology for genetic operations including selection, crossover, and mutation. The results of SGA and IGA performance testing are also presented. A prototype CBR-IGA environmental emergency preparedness system is developed and introduced, and its applicability is tested using a hypothetical ammonia leakage emergency in one district of Shanghai. The results indicate that the proposed IGA methodology can resolve the adaptation issue and expand the case base effectively in CBR systems for environmental emergency preparedness. Future research opportunities are discussed, including the potential to combine CBR, GA, and Back Propagation-Artificial Neural Network (BP-ANN) to alleviate additional challenges, such as the “speed and accuracy” of environmental emergency response.     

MRA-based revised CBR model for cost prediction in the early stage of construction projects

Accurate prediction of construction cost in the initial phase of a construction project is critical to the success of the project. Accordingly, many researchers have proposed various methodologies for predicting the cost in the initial phase with the use of limited information. This study was aimed at improving the prediction performance of a cost prediction model based on the Case-Based Reasoning (CBR) technique, which has recently become widely used. Toward this end, an improved CBR model that uses the Multiple Regression Analysis (MRA) technique in the revision phase of the CBR technique was developed. To verify the prediction performance of the proposed model, a case study was performed on 41 business facilities and 99 multi-family housing projects. The results showed that the prediction performance of the revised CBR model for business facilities and multi-family housings improved by 17.23% and 4.39%, respectively, compared to that of the existing CBR model. The proposed MRA-based revised CBR model is expected to be useful in estimating the construction cost in the initial phase of a project.     

信息系统总体设计中案例推理与规则推理集成方法的研究

通过对信息系统总体方案设计任务特点的分析和对案例推理与规则推理优、缺点的比较，提出一种信息系统总体设计的案例推理与规则推理相结合的集成推理方法，可以提高信息系统总体设计的效率和质量。     

P2P case storage and retrieval with an unspecified ontology

Traditional approaches for similarity-based retrieval of structured data, such as Case-Based Reasoning (CBR), have been largely implemented using centralized storage systems. In such systems, when the cases contain both numeric and free-text attributes, similarity-based retrieval cannot exploit standard speedup techniques based on multi-dimensional indexing, and the retrieval is implemented by an exhaustive comparison of the case to be solved with the whole set of stored cases. In this work, we review current research on Peer-to-Peer (P2P) and distributed CBR techniques and propose a novel approach for storage of the case-base in a decentralized Peer-to-Peer environment using the notion of Unspecified Ontology to improve the performance of the case retrieval stage and build CBR systems that can scale up to large case-bases. We develop an algorithm for efficient retrieval of approximated most-similar cases, which exploits inherent characteristics of the unspecified ontology in order to improve the performance of the case retrieval stage in the CBR problem solving cycle. The experiments show that the algorithm successfully retrieves cases close to the most-similar cases, while reducing the number of cases to be compared. Hence, it improves the performance of the retrieval stage. Moreover, the distributed nature of our approach eliminates the computational bottleneck and single point of failure of the centralized storage systems.     

Case Based Diagnosis and Repair of Software Faults

Software debugging (the diagnosis and repair of faults in software) can be a difficult and time consuming problem. In many cases a problem which can take an inexperienced developer a long time to correct can be quickly identified and corrected by a more experienced one. This is often because they have seen that problem (or a similar one) before. In this paper we present a system (called WATSON) which automatically constructs an explanation of the fault and a repair strategy from a library of partial repair models. This system exploits Case Based Reasoning (CBR) technology to perform this construction. The paper introduces the concepts behind CBR before going on to describe the components of the WATSON system. It then illustrates, by example, how WATSON constructs a diagnosis and repair model from the case databases.     

知识管理系统中的CBR技术研究

基于案例的推理技术尝试在计算机上将叙述能力与知识整理进行结合,在为知识管理系统的实现提供了基本的技术保障的同时,也拓宽了推理技术的应用领域。首先讨论了基于案例的推理的一些基本问题,然后借助一个实例探讨了CBR技术在知识管理系统中的应用,并提出了进一步的研究方向。     

基于事例推理的技术及其应用前景

文章从基于事例推理(CBR)的研究者及使用者的角度,介绍了目前在CBR中较成熟的技术,重点介绍了事例表示、事例检索、事例修改以及 CBR开发工具等,并分析了其中的不足,指出了CBR的发展前景。