多通道遥感数据管理与判读方式实现

为实现某遥感系统多通道大量数据的管理与判读，提出了一种能够快速查询与直观判读数据的方式，主要是操作VC++基本的控件，并通过人机输入鼠标点击和滑动来实现对某次的多通道数据的查询和显示，为数据判读和后期处理提供了便利。     

变电站电压数据采集与管理系统

文中介绍通过拨号方式进行双向远程通信来采集各变电站电压的数据，以及对采集到的电压数据进行各种查询与统计打印的基本设计与实现过程。     

ODBC配置数据库应用程序

应用ODBC数据源的联接原理，分析了计算机应用程序与数据库进行联接的方法；用C Builder代码，通过ODBC数据源注册了Access数据库；说明ODBC数据源注册数据库的基本方法与步骤；读者可以利用这一原理，编制更加完善的数据库应用程序。     

初级程序员软件考试辅导系列讲座 第五讲 基本数据结构

初级程序员软件考试辅导系列讲座第五讲基本数据结构周必水数据结构是指数据的组织形式，它有数据的逻辑结构物理结构之分。“数据结构”是计算机专业的重要专业基础课，它主要研究数据的各种合理组织方法和相应的操作。通过研究基本数据结构，才能了解数据对象的特性，指...     

联邦数据库管理系统核心接口的设计与实现

联邦数据库系统（FDBS）由多个异构数据库系统（DBS）成员组成，它支持各成员DBS的局部自治，同时又支持异构库成员之间的数据共享，本文通过讨论FDBS的体系结构和进程结构等基本理论，提出了联邦数据管理系统（FDBMS）的重要组成部分－核心接口的设计与实现方法。     

形式背景约简在数据立方体中的应用研究

研究形式背景约简理论,将形式概念分析理论的属性约简方法应用到数据立方体的研究,通过对绝对不必要属性和相对必要属性约简实现基本表的简化。研究表明,由约简后的基本表进行的数据立方体的构建要比由原始基本表的构建过程简单,由于保存了约简过程,可得到与原基本表相同的聚集概念。通过对基本表进行约简,还明确了基本表中各个属性对数据立方体聚集单元的刻画作用,这对于理解数据的特性有重要的意义。     

信息系统建设参考指南(中)

四、系统设计指南1．总体设计总体设计是IS的宏观设计，应该设计出总的E－R图、总的功能层次图、总的功能实体图和总的功能布局图，同时应该修改与完善数据字典。E－R图是总体设计的重点与难点，是IS数据关系的总纲，是基本表设计的依据，是总体设计的主要文件。2．数据库设计数据库设计是IS设计的核心，是匕成败的关键。数据库设计的内容包括数据字典设计、E－R图设计、基本表与代码设计、主键与外键设计，中间表设计。在设计中应遵守以下原则：（1）数据字典中的元素，是IS的元数据。它由基本表和代码表的表名与字段名所组成。（2）…     

基于哈希挑战和随机翻转的WSN通信安全

为保证无线传感器网络（WSN）通信中数据的机密性和可靠性，提出一种基于随机数据翻转和变色龙哈希挑战的轻量级安全传输方法。数据加密和签名保护过程都只需要进行最基本的比特翻转操作，计算效率更高。通过安全性分析和仿真实验验证了该方案的有效性，实验结果表明，与传统安全方案相比，当20%的传感器数据被攻击者利用中间人攻击进行干扰时，AFC的数据融合错误概率能够保持在5%到10%，而窃听者的错误概率始终接近50%。     

报表勾稽关系的智能化处理

在各类财务报表管理系统开发中，确保报表内各项数据正确无误以及各报表之间数据平衡，表内、表间勾稽关系设置与验证是至为关键的。本文的基本思想是：尽可能使用户能非常简便地设定和修改各类表内、表间勾稽关系，而勾稽关系的验证则通过赋予系统以智能，由系统自动检测完成。     

数据网格及其关键技术研究

从应用需求出发，首先分析了探讨了数据网格的基本目标：命名的透明性、定位的透明性、协议的透明性和时间的透明性，以及数据网格提供的基本服务：目录服务、注册与发布、信息发现、存储资源代理服务、身份认证与访问控制、调度和方法执行等，深入研究了数据网格的关键技术-元数据目录和存储资源代理，最后介绍了一个海量信息处理系统的设计。     

Only connect: teaching, technology and telesis

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.     

European Community policy and the market

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.     

一种自适应子融合集成多分类器方法

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

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.     

Designing economic np control charts: A programmed simulation approach

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.     

The development of robot art

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     

Explanation and prediction: an architecture for default and abductive reasoning

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.     

Three Process Perspectives: Organizations, Teams, and People

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.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.