Cognitive Profiles in Elementary Algebra: the PÉPITE Test Interface     

Stéphanie Jean  élisabeth Delozanne  Pierre Jacoboni  Brigitte Grugeon 《Education and Information Technologies》1998,3(3-4):291-305

The work presented here is part of a multidisciplinary project, called the PÉPITE project. Its aim is to set up a system to diagnose student profiles starting from a multidimensional analysis grid to evaluate their competences in elementary algebra. This paper deals with the design, the making and the evaluation of an interface in Computer Based Learning Environments. In it, we present the method adopted to set up software which proposes tasks to the students and collects data for the diagnosis module.We consider here the problems linked to the re-use of didactic know-how based on pencil-and-paper tasks and in particular how to transfer these tasks to a data processing environment. These problems are considered from the interface designer's point of view. In an attempt to make this clear, we make a distinction between ergonomic problems connected with the functioning of the interface and problems related to the field of application. © IFIP, published by Kluwer Academic Publishers  相似文献   

基于PFUIM的笔式表单界面自动生成方法     

刘星  樊银亭 《重庆职业技术学院学报》2013,(3):145-152

传统方法开发笔式表单界面软件,开发周期长,成本高,难以提供用户概念模型和系统实现模型相一致的软件。文章提出了一种基于PFUIM驱动的笔式表单界面软件的开发方法,该方法建立了笔式表单用户界面的开发框架,描述了笔式表单界面的PIM、PSM以及从PIM到PSM的转换过程,给出了笔式表单界面软件开发的流程,最后用实例进行说明。  相似文献   

COM/DCOM技术及应用   总被引：2，自引：0，他引：2  

兰景英  刘玓 《玉溪师范学院学报》2004,20(8):51-53

介绍了COM /DCOM的技术原理 ,分析其标准、结构、特点及其应用 ,提出了基于COM的聊天室设计模型 .  相似文献   

会话附加语的作用及运用     

钟红 《毕节学院学报》2003,21(3):48-51

作者通过对well,sortof　kindof ,youknow/yousee ,ofcourse ,Imean和oh ,aha ,ah ,dear,ok等常见的会话附加语的分析和说明 ,阐述了会话附加语的特征、语用意义以及使用会话附加语时应注意的几个问题。  相似文献   

双材料Ⅱ型中心穿透界面裂纹奇异性研究     

李俊林  李沐阳 《宁夏师范学院学报》2014,35(3):1-9

通过构造含有复奇异指数的新应力函数,利用复合材料断裂复变方法对正交异性双材料界面裂纹应力奇异性进行了研究.通过求解一类偏微分方程组的边值问题,推出了正交异性双材料界面裂纹尖端应力具有λ=-1/2的常数奇异性,λ=-1/2+ε的非常数奇异性,λ=-1/2+iε的常数振荡奇异性和λ=-1/2+c+iε的非常数振荡奇异性,并建立了四种奇异性下正交异性双材料Ⅱ型中心穿透界面裂纹尖端的应力强度因子的计算公式以及应力场和位移场的解析解.  相似文献   

大功率LED散热技术探讨     

刘菊 《宜春师专学报》2014,(6):46-49

LED由于具有体积小、工作电压低、寿命长、节能等优点,必然在众多光源中占据优势地位,但散热问题是限制其发展的瓶颈;首先对大功率LED封装总的热阻进行了分析,确定了影响大功率LED封装散热的因素;然后对国内外LED最新散热技术的进展进行了比较.  相似文献   

基于Drupal构建北京大学图书馆新门户     

周义刚  刘丹  韦成府  吴越  张乃帅 《数字图书馆论坛》2014,(8):52-58

本文介绍了北京大学图书馆旧版门户存在的问题以及新门户的建设概况,着重从美工设计方面描述北京大学图书馆新版门户的亮点,然后详细介绍了部分功能的实现及相关问题的解决办法。  相似文献   

Supporting exploratory video retrieval tasks with grouping and recommendation     

Martin Halvey  David Vallet  David Hannah  Joemon M. Jose 《Information processing & management》2014

In this paper, we present ViGOR (Video Grouping, Organisation and Recommendation), an exploratory video retrieval system. Exploratory video retrieval tasks are hampered by the lack of semantics associated to video and the overwhelming amount of video items stored in these types of collections (e.g. YouTube, MSN video, etc.). In order to help facilitate these exploratory video search tasks we present a system that utilises two complementary approaches: the first a new search paradigm that allows the semantic grouping of videos and the second the exploitation of past usage history in order to provide video recommendations. We present two types of recommendation techniques adapted to the grouping search paradigm: the first is a global recommendation, which couples the multi-faceted nature of explorative video retrieval tasks with the current user need of information in order to provide recommendations, and second is a local recommendation, which exploits the organisational features of ViGOR in order to provide more localised recommendations based on a specific aspect of the user task. Two user evaluations were carried out in order to (1) validate the new search paradigm provided by ViGOR, characterised by the grouping functionalities and (2) evaluate the usefulness of the proposed recommendation approaches when integrated into ViGOR. The results of our evaluations show (1) that the grouping, organisational and recommendation functionalities can result in an improvement in the users’ search performance without adversely impacting their perceptions of the system and (2) that both recommendation approaches are relevant to the users at different stages of their search, showing the importance of using multi-faceted recommendations for video retrieval systems and also illustrating the many uses of collaborative recommendations for exploratory video search tasks.  相似文献   

民机半实物仿真硬件接口系统设计研究     

谢陵 《人天科学研究》2011,(11):115-116

对民用飞机飞控系统的半实物仿真过程中所采用的硬件接口系统的功能、架构、组成等进行了设计和研究,并提供了硬件采购清单,该方案可以为各种半实物仿真实验系统提供高效、灵活的接口管理方案。  相似文献   

协同教育平台用户界面设计研究     

墨子甜  王清 《人天科学研究》2013,(10):46-48

随着现代信息技术的不断发展和广泛传播,构建学校、家庭、社会协同教育平台是搞好未来教育的基础与前提。以心智模型为理论依据,结合逻辑学、心理学和美学等理论知识,分析了用户界面设计的思想、关键因素,以及应当遵循的基本原则,并对适合于协同教育平台的界面进行了设计。  相似文献