Utilize bootstrap in small data set learning for pilot run modeling of manufacturing systems

If the production process, production equipment, or material changes, it becomes necessary to execute pilot runs before mass production in manufacturing systems. Using the limited data obtained from pilot runs to shorten the lead time to predict future production is this worthy of study. Although, artificial neural networks are widely utilized to extract management knowledge from acquired data, sufficient training data is the fundamental assumption. Unfortunately, this is often not achievable for pilot runs because there are few data obtained during trial stages and theoretically this means that the knowledge obtained is fragile. The purpose of this research is to utilize bootstrap to generate virtual samples to fill the information gaps of sparse data. The results of this research indicate that the prediction error rate can be significantly decreased by applying the proposed method to a very small data set.     

浅谈无线局域网安全技术

本文在阐述无线局域网安全技术概况的基础上,分析了掌握无线局域网安全技术的必要性,并通过实际案例,介绍了相关知识。     

家纺产品分销管理系统的设计与实现

根据家纺产品分销的业务范围和操作流程,结合基于组件的多层应用开发技术,提出了适合家纺产品分销管理的系统解决方案,较好地实现了家纺产品分销中的一些业务流程。该文详细阐述了家纺分销管理系统的设计与实现。     

基于Windows 2000 Advanced Server部署补丁服务器

该文通过部署补丁服务器的方式将旧服务器变废为宝,实现了内网补丁自动更新,既节省了资源又有效地保障了内网安全。     

Experiences in developing and applying a software engineering technology testbed

A major problem in empirical software engineering is to determine or ensure comparability across multiple sources of empirical data. This paper summarizes experiences in developing and applying a software engineering technology testbed. The testbed was designed to ensure comparability of empirical data used to evaluate alternative software engineering technologies, and to accelerate the technology maturation and transition into project use. The requirements for such software engineering technology testbeds include not only the specifications and code, but also the package of instrumentation, scenario drivers, seeded defects, experimentation guidelines, and comparative effort and defect data needed to facilitate technology evaluation experiments. The requirements and architecture to build a particular software engineering technology testbed to help NASA evaluate its investments in software dependability research and technology have been developed and applied to evaluate a wide range of technologies. The technologies evaluated came from the fields of architecture, testing, state-model checking, and operational envelopes. This paper will present for the first time the requirements and architecture of the software engineering technology testbed. The results of the technology evaluations will be analyzed from a point of view of how researchers benefitted from using the SETT. The researchers just reported how their technology performed in their original findings. The testbed evaluation showed (1) that certain technologies were complementary and cost-effective to apply; (2) that the testbed was cost-effective to use by researchers within a well-specified domain of applicability; (3) that collaboration in testbed use by researchers and the practitioners resulted comparable empirical data and in actions to accelerate technology maturity and transition into project use, as shown in the AcmeStudio evaluation; and (4) that the software engineering technology testbed’s requirements and architecture were suitable for evaluating technologies and accelerating their maturation and transition into project use.

A hybrid multicast connectivity solution for multi-party collaborative environments

In multi-party collaborative environments, a group of users can share multiple media streams via IP multicasting. However, despite of the efficiency of IP multicast, it is not widely available and alternative application-layer multicast approaches are introduced. Application-layer multicast is advantageous, however, it incurs additional processing delays. In this paper, we present a new hybrid-style application-layer multicast solution that satisfies both network efficiency and easy deployment. We achieve this goal by connecting multicast islands through UDP tunnels employing UMTP (UDP multicast tunneling protocol). We also design a MPROBE protocol to remove multicast loop among multicast island in real Internet. We verify the feasibility of the proposed solution by implementing a prototype tool, AG Connector, that works on Access Grid multi-party collaborative environment.

“智能科学技术导论”课程教学模式新思考

本文探讨了"智能科学技术导论"课程的教学重点和教学模式,指出本课程作为"智能科学与技术"专业的重要基础课程,应以专业特点和要求为出发点,建立新型的教学模式,培养学生的独立思考能力、创新能力和实践能力。     

“入侵检测技术”课程实验教学的设计与研究

本文通过对"入侵检测技术"课程的实验教学的实践、总结和研究,从"入侵检测技术"课程的特点和学生需求出发,设计和选择了该课程的一系列验证型、设计型和综合型实验内容,设计并实施了实验教学的过程,使学生在掌握课程的重要知识点的同时,增长自己的动手能力和实践能力。     

“智能科学与技术”专业课程体系建设的思考

本文阐述了"智能科学与技术"学科建设的重要性。通过分析传统学科课程体系建设的情况,结合"智能科学与技术"专业的特点,针对该专业的课程体系建设问题,提出了几点探索性的建设思路和构建方案。     

振弦式力传感器一带二接线技术试验研究

大坝安全监测所用的振弦式测力监测仪器一般采用四芯屏蔽电缆实现信号输入和输出。”一带二”技术是在实际工作中根据施工现场的需要总结出来的一种应急补救措施。当振弦式仪器的信号电缆在埋设施工后,发生电缆故障时可以采取该技术措施来进行补救处理。试验结果表明监测信号完整且相互之间无干扰。