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1.
SDP(Source Data Processor)是上海市长途电信局“长途电信营业帐务系统”( Telecom m unicationsBilling System ,TBS)中的原始数据处理子系统。TBS是一个集原始数据处理、客户管理、帐务处理于一体的大型数据处理系统,在VAX/VMS操作系统下用PASCAL语言实现。本文将介绍SDP的软件结构设计及数据结构设计,并详细讨论几种对SDP的时间和空间效率至关重要的算法和数据结构  相似文献   

2.
TSP问题是NP完备问题,在本文中提出基于进化策略的启发式TSP问题求解算法。计算机模拟结果表明在较短的时间内,利用本文提出的算法能够得到满意的结果。  相似文献   

3.
TSP问题是NP完备问题,在本文中提出基于进化策略的启发式TSP问题求解算法。计算机模拟结果表明在较短的时间内,利用本文提出的算法能够得到满意的结果。  相似文献   

4.
TCP/P是网络中应用最广泛的协议,WidowsSockets是基于TCP/IP的应用程序标准规范。本文重点介绍了TCP/IP的基本原理、概念以及WindowsSocket编程的基本方法。  相似文献   

5.
当前FFT(FastFourierTransforms)可以利用DSPs或微处理器以软件方式实现,也可用专用器件及通用的VLSI来获得高效能的FFT。对于后者,主要的问题是资金开销、设计风险以及设计时间。本文介绍了用可编程逻辑器件自动实现FFT处理器的设计工具,并介绍其设计方法与应用。  相似文献   

6.
块二级多分裂迭代方法   总被引:1,自引:1,他引:0  
该文提出一种块二级多分裂PE迭代算法(TSMPE),可以克服M-1r(s)并行化处理的困难。这种算法格式简单明了,收敛速度快。计算实例显示该算法在分布式并行机群系统上很有效。  相似文献   

7.
TS与GAs混合算法在大规模资源分配问题中的应用   总被引:7,自引:0,他引:7  
刘树安  尹新 《控制与决策》1998,13(4):327-331
采用TS与GAs混合算法建立资源分配模型来分解协调大规模规划问题。针对大规模资源分配问题的特点,选择合适的TS参数及GAs算子,构造出一种新的混合算法。具体实例验证了算法的合理性及有效性。  相似文献   

8.
对于教育网和169的大部份用户来说,如果他们要到其所在的局域网以外的地方访问INTERNET上的资源,都要通过某一种代理服务器的帮助才能实现。 代理服务器有好几种,其中Socks5代理服务器上运行的Socks5代理是目前最优秀的代理之一。它可以让几乎所有基于TCP/IP 协议和UDP协议的软件都能使用Socks5代理出去访问INTERNET。Socks5还支持各种身份验证研制,服务器端域名解析,这很好地解决了认证、保密、以及proxy接力等问题。 Socks5在协议栈的TCP层上运行,它不要求应用…  相似文献   

9.
网络环境下基于Winsock的进程通信方法   总被引:7,自引:1,他引:6  
1 引言 TCP/IP协议由操作系统内部实现,编程人员要开发TCP/IP应用程序,就要利用TCP/IP提供的编程接口──Socket(套接字)。基于TCP/IP的Socket通用编程接口最初由UNIX操作系统开发。随着微机应用越来越广泛,Windows系列成为微机上最常用的一种操作系统,在90年代初,国际上著名的一些软件公司共同制定了一套标准,即 Windows Sockets规范,简称Winsock,把Socket机制引入了Windows,由于Windows操作系统与UNIX系统任务调度方式的区别…  相似文献   

10.
当前的印刷电路板(PCB)数控钻自动编程系统生成的钻孔路线并非最佳走刀路线。本文通过分析,将PCB数控钻孔最佳走刀路线问题归结为大型TSP问题,其目标函数定为钻头的总走刀时间最短。由于TSP问题在理论上属于NP完备问题,很难用一般的算法求解。本文详细介绍了用模拟退火方法求解该问题的具体算法,并以此为基础开发了PCB最优化的自动编程系统。  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
《计算机科学》2007,34(4):148-148
Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.  相似文献   

18.
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.  相似文献   

19.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

20.
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.  相似文献   

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