移动设备上实现Web Services技术的研究及应用

J2ME主要针对资源受限设备进行应用程序的开发。Web服务是电子商务发展的下一个阶段,它能够让任何平台上的用任何语言编写的服务进行交互。文中主要介绍了在这两种技术的基础上,完成一个以J2ME和Web Service技术相结合的拍卖系统项目,其中J2ME用于手机端客户程序的开发,而Web Service技术则用于处理服务器端和客户端之间的交互,以及后台服务端程序的发布。     

基于J2ME和J2EE的城市公交查询系统的设计与实现

J2ME和J2EE技术是目前Java两大主要技术,并在应用中取得了成功。本文基于J2ME和J2EE技术实现了一个移动手机版的城市公交查询系统。其中,J2ME技术拥有移动手机客户端的开发,而J2EE技术则用于后台服务器和手机客户端的交互,以及后台服务器信息的发布。本系统实现了三种查询功能:路线查询、站点查询和站站查询。通过本系统将极大地方便手机用户对公交信息的查询。     

基于J2ME和J2EE的城市公交查询系统的设计与实现

J2ME和J2EE技术是目前Java两大主要技术,并在应用中取得了成功。本文基于J2ME和J2EE技术实现了一个移动手机版的城市公交查询系统。其中,J2ME技术拥有移动手机客户端的开发,而J2EE技术则用于后台服务器和手机客户端的交互,以及后台服务器信息的发布。本系统实现了三种查询功能：路线查询、站点查询和站站查询。通过本系统将极大地方便手机用户对公交信息的查询。     

基于移动客户端的BPEL应用模型的研究与实现

BPEL是SOA体系结构的一个具体实现,运用该语言可以实现Web Services流程管理,实现远程服务的无缝链接.研究了基于J2ME的移动设备作为客户端访问BPEL系统的模型与结构,并作了具体的系统实现.     

基于Java ME和J2EE的手机校友录系统的设计和实现

介绍了基于Java ME规范的手机上开发移动校友录系统的基本思路和设计方案。该系统的设计采用了面向对象的方法,结合对象关系映射模型,分别应用Java ME和J2EE技术实现手机客户端和服务器端功能,基本实现了现有的Web校友录的基本功能。     

基于J2ME的Web服务客户端及其在移动设备中的实现

介绍Web服务的现状和J2ME在Web服务客户端中的应用,然后详细讨论利用J2ME在手持移动设备上访问Web服务的两种实现方法,并通过实验验证这两种方法的可行性,最后比较了这两种实现方法的优缺点。     

用Java和Web Services技术实现移动位置＋服务

提出了一种用手机的嵌入式Java(J2ME)和服务器端Java(J2EE)实现的，基于Web Services架构的位置服务解决方案，对其中的关键技术进行了探讨，提出了一种完整的技术路线。     

基于J2ME的移动购书系统

随着移动通信网络的成功商业化和手机、PDA、掌上电脑等各类移动终端的普及,人类已经进入移动商务时代。移动购书系统采用J2ME（即JAVA 2 Micro Edition）,以J2ME作为客户端平台,J2EE作为服务器端平台,客户端通过HTTPS协议连接WEB服务器,与之进行数据交互,从而实现基于J2ME的移动购书。     

一种基于J2ME的工程图纸档案管理平台

通过对企业设计部门工程图纸档案管理特点的分析研究，提出一种基于J2ME的工程图纸档案管理平台，开发了手机终端上的J2ME应用程序及服务器端的Web应用程序，实现了手机终端与Web服务器信息交互关键技术，解决了工程技术人员无法移动办公的难题。实际应用验证了该平台的有效性和实用性。     

基于j2me/servlet技术实现手机访问网络数据库

本文介绍了J2ME技术在JAVA手机上的实现及与web服务层信息的交互，并以学生成绩查询为例，详细讲解了J2ME和servlet结合开发手机访问网络数据库应用的实现方法。     

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.