基于Android的“SOS"求救短信发送功能实现

基于Android系统实现“SOS”求救短信发送.具体思路利用Android设备的GPS,通过Android系统的GPS API,获取到精确地理位置定位信息,如经纬度、高度等,将定位信息在屏幕上显示以及以短信的形式发送,实现“SOS”求救.     

基于Android的高效短信查询软件的实现

分析了目前智能手机短信查询软件的不足,提出了一个比较高效的短信查询软件的实现方案,包括通过联系人查询短信、通过日历查询短信,以及通过关键词检索短信的实现方法等。介绍了Android平台下系统的实现过程,分析了不同场景下该软件的优势,总结创新点。     

基于3DES和RSA的Android系统短信加密设计与实现

Android系统作为开源的系统,受到越来越多的青睐,同时其安全性及用户的隐私也受到了极大的考验。本文提出了一种针对短信隐私保护的加密方案。从Android系统的整体架构及分层思想出发,通过对3DES对称加密算法及RSA非对称加密算法的原理进行分析与研究,提出了一种新型的针对Android系统的混合加密算法的短信加密方案,详细地介绍了具体的实现过程。使用Android模拟器进行的收发仿真实验,证明了短信加密方案的可行性。     

基于Android平台的点对点定位查询软件的设计与实现

Android智能终端通过GPS定位的方式已经逐渐成熟,但如何实现点对点的定位仍需探索。本文通过研究Android应用程序设计原理、Android中GPS定位、发送和接收短信的相关类库,最后设计实现了点对点定位软件。通过GPS定位及点对点短信实现了点对点定位。     

基于Android平台的自发短信系统设计与实现

基于Android手机操作系统开发了一款自发短信系统。利用SQLite数据库存储技术、Service启动服务技术及Runnable接口,设计并实现了好友管理、短信管理、后台检测发送短信等功能,并给出了运行效果图。该系统的实现为指定时间发送定制短信提供了很大的方便性。     

基于Android的物联网控制系统的设计与实现

基于Android智能操作系统开发平台,以移动通信网为载体,利用短信方式和GPRS方式实现在系统客户端信息采集与传输、进行数据分析处理等功能的物联网无线测控系统.用户通过Android设备终端,可以随时随地查看环境数据并进行实时检测与控制,实现物联网嵌入式的无线测控功能.     

基于Android和PHP的短信语音系统研究和开发

Android短信语音系统可以朗读短信内容,但开发复杂和费用较高.探讨了短信语音系统相关技术和开发,阐述了SLAA体系结构、短信技术、语音技术和事件模型等相关技术,基于SL4A等相关技术和PHP脚本分析,实现了短信语音系统.实践表明,系统具有简单和快速等优点.     

Baidu Maps在移动震情信息接收中的应用

地震发生后,快速为社会公众提供震情服务及其重要。通过分析震情短信,应用Baidu Maps API、Android、SQLite数据库等技术,开发了基于Android的移动震情信息接收系统,用于集中管理震情信息并在地图上显示,以实现震情的可视化应用。     

基于Android平台的防丢失防诈骗的安全监控系统

针对信息时代背景下,老人、儿童易受丢失与信息诈骗等问题,通过搭建Eclipse+ADT+SDK的Android开发环境,采用Java语言设计了一个基于Android平台的防丢失与防诈骗的短信监控系统.该系统包括来去电监控、短信监控、定位监控和解锁监控等模块.运行结果表明,该系统简洁易用且稳定可靠.     

Android平台智能防火墙系统的设计与实现

近年来,随着智能手机的普通,智能手机的安全领域越来越受到人们的关注。作为市场占有率第一的移动平台操作系统,Android用户同样面临了很多的安全方面的威胁。本文针对用户日常生活中受到的垃圾短信、电话的骚扰,重点研究短信、电话屏蔽的相关技术,设计并实现了一种基于黑白名单的Android平台智能防火墙系统。     

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.