基于GIS的气象信息标准化服务平台的设计与实现

随着气象资料服务不断格点化、精细化,对气象数据基于GIS(geographic information system,地理信息系统)的显示发布要求进一步提高。当前各气象业务系统在建设时往往存在重复处理气象数据及开发整合地理信息系统的现象,重复开发基于地理信息的可视化功能会造成资源浪费,延长开发周期。该文根据实际业务需求,集成了多源异构的气象数据,设计实现了基于GIS的气象信息标准化服务平台。该平台主要依托CIMISS(全国综合气象信息共享平台)数据接口、各类气象资料观测数据文件,依照地理信息数据图层金字塔分级方式,将气象数据进行重新组织,以Web方式提供标准化PaaS(platform as a service,平台即服务)服务,包括地图服务、地理覆盖服务和地理要素服务,以更便捷、更安全、更全面的方式向本级和下级单位各业务部门提供气象数据GIS服务(包含GIS和数据服务)。该平台在江苏省气象局多个气象业务系统中投入应用,有效减少了业务系统建设环节中的气象资料可视化重复开发所造成的资源浪费,收到了良好的应用效果。     

业务型GIS在电子政务中的应用

电子政务作为政府信息化的先行工程,成为各个城市信息化建设的重中之重。基于对管理信息系统和地理信息系统两大核心技术的掌握和不断地成熟完善,融会贯通构建城市综合信息平台,将企业门户、办公自动化、业务审批与地理信息全面结合,将政府的政务信息化与GIS的决策支持相融会,实现了真正意义上的电子政务。     

基于SOA的城市GIS综合平台设计与实现

地理信息系统(GIS)作为数字城市的空间基础平台发挥着重要作用,为了进一步实现城市信息一体化,有效整合异构多源的行业系统和数据,采用基于面向服务的体系结构(SOA),设计了城市GIS综合平台的框架模型.描述了构件、服务的分类与组合、业务流程分析与设计等过程,并利用网络服务技术进行了系统实现.     

基于三维GIS的大屏可视化策略

本文分析了三维地理信息系统和大屏展示系统的现状及特点, 以通用性的综合展示平台为例, 选取南宁市数字孪生可视化展示为主题, 从空间信息场景设计、表达对象选取、页面布局、平台色彩设计、符号设计、图表设计、动效设计的角度切入, 提出了基于三维GIS的大屏可视化策略. 并基于上述策略, 对该类型平台搭建的系统架构和关键技术点...     

基于Struts的用地管理信息系统

研究了基于Struts和AreIMS等技术的用地管理信息系统.系统采用了基于J2EE、Struts、AreIMS等技术的实现方案.根据以前业务系统存在的主要问题以及业务需求达到的主要目标包括业务需求目标、GIS功能目标、办公自动化目标、工作流目标、信息发布目标,系统采用了基于包括显示层.商业逻辑层和数据层的B/S三层结构设计.对具体模块的设计与实现进行了介绍.此系统方案可以作为其它基于Web的电子政务系统建设的参考.     

助力水利信息化——东方通中间件在水利电子政务建设中的应用

作为水利信息化的重要组成部分,电子政务的建设将直接影响到水利信息化的进程。水利电子政务应用系统建设包括网络、基础设施、综合应用平台和重点业务应用等多个方面。电子政务综合应用平台是水利电子政务应用系统建设的软件基础:水利电子政务综合应用平台在其中起着关键的应用支撑框架作用,也是更好解决现阶段水利电子政务面临问题的关键。从逻辑结构描述,水利电子政务综合应用平台由门户服务平台、数据共享交换平台、业务协同平台、安全服务平台和统一管理平台五部分组成。建立水利电子政务系统中各类门户网站的公共技术框架。通过门户服…     

人事部门电子政务业务基础平台的设计与应用

本文主要介绍了开发政府人事部门电子政务系统的基础技术框架——业务基础平台的设计与应用,着重就平台的总体架构,以及基于平台进行二次开发的业务系统的构建方案进行剖析。     

北京平谷区电子政务办公平台——基于国产基础软件开发

北京平谷区电子政务办公平台是完全基于国产基础软件开发的一整套系统，是一个对区域政府单位业务、内部管理等多种数据资源进行整合的一个平台。这个平台主要包括的内容有：办公自动化系统、地理信息系统、全程办事代理制系统、农村综合管理系统、政务督察系统、应急指挥系统、决策支持等子系统及功能模块共43个。     

面向公交的多维时态GIS研究与实现

为了实现公交时空一体化管理,分析了公交时空过程,设计了它的概念模型。融合时态地理信息系统(GIS)和三维地理信息系统(GIS),设计了面向公交的多维时态GIS的框架结构,它是一个面向服务的、易于扩展的多层软件体系结构,并设计了系统的主要功能。基于ArcGIS Engine开发了面向公交的多维时态GIS实验系统,并以广州市大学城的公交线路为例,实现了公交时空过程的一体化管理,验证了该设计的可行性与合理性。     

基于GIS平台电网数据分层分区管理系统

分析地理信息系统(GIS)的应用及其各种开发工具的特点,结合电网分层分区思想,提出将基于地理信息系统平台的数据管理系统应用到分层分区的电网数据管理中。采用模块化软件设计思想,设计一套基于GIS平台的电网数据分层分区管理系统,实现了空间上的电网数据分层分区管理,提高了数据管理的直观性。     

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.