音乐打铃系统在技师教学中的应用

本文从职业教育发展的方向出发,根据市场对电子技人才的需求及电子技术教学的特点,提出了"项目教学"的思路,以应用电子产品设计开发与应用为引导,使学生在"做"中学,在"做"中提高。本文详细介绍了我校技师班学生开发的"智能音乐打铃系统",介绍了该系统的应用,提出了以"项目设计"培养高技能人才的全新思路,对提高电子专业技能培养起着重要作用。     

基于模板的试卷生成研究和实现

本文以"试题库及试卷管理系统"的开发为背景,简要介绍了基于模板的试卷生成思想,探讨系统开发过程中基于模板的试卷生成系统研究和实现,重点介绍了word格式试卷的生成实现方式。     

网络故障管理中基于模型驱动的移动代理应用

目前传统的网络管理都是采用集中式方式,存在很多缺陷,例如执行效率低下.文中针对传统网络管理系统的不足,提出了一种新的网络故障管理模式,并在此基础上介绍了一种基于心理学"刺激-反应"原理的模型驱动的移动代理开发方法.通过对该心理学原理的模拟,来指导移动代理的开发,并将"刺激-反应"模型贯穿移动代理开发中的分析、设计及实现过程.最后将移动代理应用到网络故障管理的实例中,并详细介绍了基于模型驱动的移动代理在网络故障管理中应用的开发过程.     

Matlab可视化界面设计与控件使用

以基于Matlab语言进行软件"遥控模拟系统"的开发和设计为主线,介绍了Matlab可视化设计的初步知识,讲解了在GUIDE环境中如何利用控件实现可视化功能.     

中职计算机专业基于工作过程的一体化教学探究

随着职业院校全面推行一体化教学改革,在课堂中要求"做中学,做中教"。在此基础上,各专业进行了"工作过程系统化"课程开发与实施。本文以计算机专业在一系列教学改革中的经验为例,介绍实现基于工作过程的一体化教学的设计与实现。     

以“互动”为特征的教学素材开发方法与实践

本文在分析开发多媒体教学素材使用方法的基础上,提出了以"互动"为特征的教学素材开发方法,并重点介绍了三维交互式教学素材的开发案例,对教师开发教学素材具有很好的启发意义。     

编程语言读取Word中表格单元格属性值的方法

在开发"Word自动阅卷系统"时,发现Word未提供表格单元格合并属性,当单元格合并后,程序无法通过行列号寻址正确读取各单元格属性值,并且系统还显示错误提示,目前可查阅的相关开发文献中都没有找到解决方案.介绍了Word文档中表格各单元格的万能寻址方式,并给出了基于VB的获取Word"单元格合并"信息的程序代码.     

i上那阵phone iPhone编程的第一步

在给大家描述了一番美好的iPhone"钱"途,并介绍了必不可缺的IDP申请之后。这次我来给大家介绍一下如何开始我们的iPhone开发之路。     

基于Profibus-DP的开放式数控系统高速通信

介绍了在开放式数控系统中使用主站卡与交流伺服驱动从站模块建立Profibus-DP网络.在Visual C 6.0环境下开发用于数据高速通信的接口程序.使用PID算法实现了对多个电机的同时控制,并在"SKY-2007"开放式数控系统中检验了通信的实时性.     

基于Qtopia的嵌入式软件开发

Qtopia的出现为使用嵌入式Linux作为操作系统的手持设备提供了开发图形应用程序的便捷手段.介绍了在Linux操作系统中构建Qtopia环境的过程.以"贪吃蛇游戏"为例,描述了使用Qtopia程序库开发嵌入式应用的过程.以Motorola A780手机为目标平台,阐述了构建交叉编译环境和交叉编译应用程序的步骤.     

设计Windows联机图文帮助系统

本文介绍了如何利用Ｗｏｒｄ和ＨｏｔｓｐｏｔＥｄｉｔｏｒ设计Ｗｉｎｄｏｗｓ环境下的帮助文件，以及怎样在应用程序中调用此帮助文件。     

Computer software as text

Participatory design strategies have placed the user at the center of the design process, leaving computer software designers without guidelines for how to design and implement the software system. This paper aims to bring the designer back to the center of the design process. and the way of doing it is to consider computer software as text. Three different text theories are presented in order to explain what is meant by text, namely pragmatics, structuralism and deconstructivism. Finally it is discussed how the design processes should be understood, and how they should be organized when taking the text point of view of computer software.     

Building and testing optimized keyboards for specific text entry

OBJECTIVE: We explore how to optimally design systems for information input. BACKGROUND: As computers are introduced into ever more devices with new methods of inputting information, there is a need for specialized systems that are optimally designed for their particular use. METHOD: The study demonstrates how to use a model of text entry times to build optimized keyboards for specific sets of text. The technique is demonstrated by using Fitts' law to model text entry times. Alphabet letters are assigned to keys in a way that minimizes predicted entry time for the specified set of text. The predicted entry times are validated by an experiment in which two keyboards are optimized for different sets of text. RESULTS: Text entry is faster for the keyboard optimized for that text compared with the keyboard optimized for the other text. Learning to use the keyboards is fairly quick, with significant learning being observed after only one half-hour session. CONCLUSION: There is a need and an ability to design specialized keyboards for some situations. The study demonstrates that optimization of keyboards can decrease text entry times. APPLICATION: This research shows how to design optimized keyboards for many different situations. The approach should be useful for aviation, medical, industrial, and other specialized situations in which normal keyboard designs cannot be used.     

Quotations in scholarly text: Converting existing documents to hypertext

A crucial issue in hypertext design is how to give the reader new capabilities without taking any existing ones away. This paper discusses the conversion of traditional, printed scholarly text to hypertext, focusing on the presentation of the explicit links between texts that are represented by direct quotations. It first examines how quotations are used by the author and the reader in traditional text. It then considers the conversion of scholarly text to hypertext, concentrating on how direct quotations should be handled. Three specific areas are examined: (i) what kinds of links are necessary, and what they should link together, (ii) how the linked texts should be divided into sections or nodes, and (iii) how the links and nodes should be displayed to the reader. The paper concludes by listing some recommendations for the conversion of scholarly text to hypertext.Stephanie W. Haas is an Assistant Professor in the School of Information and Library Science at the University of North Carolina at Chapel Hill. She is interested in natural language processing and information retrieval. Her most recent publications concern the vocabulary and structure of sublanguages.     

基于网格的Multi_Agent web文本挖掘系统

企业决策对web文本挖掘的速度和准确性的要求越来越高。本文提出了一个基于网格技术的能够并行处理的Mul-ti_Agentweb文本挖掘系统。并讨论了该系统提供文本挖掘服务的方法和步骤。     

基于不平衡数据集的文本分类技术

文本自动分类是信息检索和数据挖掘领域的研究热点和核心技术,但是在实际应用中,经常会出现文本实例中一些类中欧冠的文本很多,而另一些类中的文本较少的情况,而这些应用往往就是为了预测其中很少出现但很重要的文本,这就是所谓的文本分类不平衡问题。传统方法对少数类的识别率低,如何有效的提高少数类的分类性能成为机器学习和模式识别领域亟待解决的问题。因此,该文针对提高不平衡数据集中的少数类文本的分类性能之一问题,从数据层面处理的角度对数据进行重抽样。使用随机抽样的方法以提高分类器在非平衡数据集上的泛化性能。     

一种文本理解的知识表示方法

对自然语言文本的理解, 应该把它与一定的情境联系起来。本文正是基于这样的思想, 讨论了一个文本所描述的事物及其有关情境是如何在机内表示的。     

基于中文多标签分类的特征选择研究

在中文多标签文本分类中,面临的一个主要问题就是如何降低文本巨大的特征维数,并且保持分类精度甚至提高分类精度。文本提出的特征选择方法相比于现有最常用的特征选择算法,更注重删除稀疏特征、保留更有区分度、有利于分类的特征。     

Everyday deception or a few prolific liars? The prevalence of lies in text messaging

With the recent and dramatic changes to communication patterns introduced by new information technologies it is increasingly important to understand how deception is produced in new media. In the present study we investigate deception production in text messaging, focusing on how often people lie, about what and to whom. This study uses a novel data collection method that allows for the examination of individuals’ communication records at the message level, which may provide a more accurate account of deception behavior than diary or survey methods. We find that the majority of our participants practiced deception in text messaging. Although lying was a relatively infrequent occurrence for the majority of our participants, there were a small number of prolific liars who told a disproportionately large number of lies using this medium. Additionally, we found some support for the argument that deception occurs less frequently in closer relationships, and we observed how the micro-coordination goals of text messaging change the properties of deceptive text messages relative to face-to-face lies.     

How hypertext fosters children’s knowledge acquisition: The roles of text structure and graphical overview

Children in primary and secondary school are asked to go on the Internet for school purposes while research on hypertext has scarcely investigated how children process and learn from hypertext. We therefore examined how hypertext influences children’s knowledge acquisition from expository text. A group of 71 Dutch children (13 years old) from one secondary school for pre-university education participated in the study. In a within-subjects design with four conditions, we compared: regular linear text, regular text with overview, hypertext, and hypertext with overview. Children’s (a) navigation (i.e., reading time and navigation pattern) and (b) learning (i.e., multiple choice knowledge questions and mind maps) was measured. Although reading times did not differ, the children navigated less linearly in both hypertext conditions than in the regular text with overview condition. The four types of text led to the same deep understanding as measured on the text base level. Analyses of the mind maps, however, showed the children to construct richer situation models after reading hypertext or hypertext with an overview relative to regular linear text and regular text with overview. We therefore conclude that hypertext fosters a deeper level of information processing when appropriately designed relative to regular linear text.