大学物理实验中不确定度测量问题探讨

为了适应新世纪的高科技人才的需要,物理实验课中正在逐步推行用不确定度评定测量结果,但是从学生的实验报告中发现了许多问题,大多数问题集中表现在实验结果的表示上,文中有针对性地介绍了不确定度的概念、物理实验的结果及其不确定度的有效位数,为学生在物理实验中的数据处理提供参考．     

利用数据仓库技术整合商业银行历史数据

本文提出了利用数据仓库技术整合商业银行历史数据,从实用角度提出基于数据仓库决策支持系统的体系结构,研究了数据仓库的开发过程,并介绍基于数据仓库的决策技术。最后本文介绍了商业银行决策支持系统DSS的应用实例。     

ID3算法在高校招生决策中的应用研究

介绍了ID3算法的基本知识,并结合当前高校招生中的一些问题从数据挖掘的角度利用决策树算法对考生的信息进行了分类,找出帮助高校录取的一些规律,对提高新生报到率具有一定的指导意义。     

数据库的存储访问机制浅析

数据库开发应用技术成为计算机信息系统发展的一个重要方面,在高校的计算机相关专业设置中均有数据库有关课程。充分了解数据库在内存中存储方式和指针移动的访问机制,更有利于理解数据库数据操作的基本原理。     

从“数据崇拜”到“数据正义”:人工智能时代高等教育研究范式的旨趣转换

人工智能时代为高等教育研究带来本体论、认识论和方法论的变化,从而产生新的高等教育研究范式。该研究范式的旨趣从"数据崇拜"向"数据正义"转变。该研究范式的特征为:研究者的主体性与技术理性结合、计算思维和因果思维结合、研究效率与研究质量并重。该研究范式的价值体现为促进学科建设、解决高等教育实践问题和凝练高等教育思想。为了实现研究范式的旨趣转换,高等教育研究者需要具备范式旨趣转换意识、培养学科情感、研究方法训练、高等基本理论的修养。     

Individual participant data meta-analysis of the impact of educational interventions on pupils eligible for Free School Meals

Meta-analysis is the synthesis of findings from research projects, which enables an estimate of the average or pooled effect across various studies. This study presents findings from the intention to treat analysis for a series of educational evaluations in England using a two-stage meta-analysis with standardised outcome data and individual participant data meta-analyses. The research estimates the overall impact of educational trials on pupils eligible for Free School Meals (FSM) and the attainment gap in literacy and mathematics performance between FSM and non-FSM pupils based on analysis of 88 trials and data from over half a million pupils. For the meta-analyses, frequentist and Bayesian multilevel models were used to estimate the individual and pooled effect size across categories of explanatory variables such as age groups (key stages in England) and aspects of the type of interventions (one-to-one, small group, whole class). Results indicated that the overall impact of interventions on the literacy outcomes of FSM pupils was positive, with a pooled effect size of 0.06 (0.03, 0.08). However, for mathematics, no overall effect on FSM pupils was observed. Analysis of the attainment gap indicated that literacy outcomes for FSM pupils were improved by interventions marginally more than for non-FSM pupils (pooled attainment gap 0.01 (−0.01, 0.04)). The risk of bias assessment showed that estimates were consistent across different methodological approaches. Overall, evidence from this study can be used to identify, test and scale educational interventions in schools to improve educational outcomes for disadvantaged pupils.     

Teaching first‐year statistics students with COVID‐19 real‐world data: Graphs

It is said that a picture is worth a thousand words, but what about graphs? Although graphs have the potential to bring data to life, numerous studies show that learners struggle with graphical comprehension. Furthermore, many textbook examples on graphs are boring and appear meaningless to students. Students want to know more about something which is interesting, meaningful, and worth knowing, in other words, something relevant. With the outbreak of the novel coronavirus in December 2019, COVID‐19 is dominating the news worldwide, and the internet is flooded with visual presentations about the virus. To make statistics more fascinating and exciting, relevant and real‐world data such as these can be used in the classroom to stimulate the learning of important statistical concepts such as graphs. Curcio's three levels of graphical comprehension were used as a framework in this study, while the importance of developing a global view on distributions was also emphasized.     

高校数据科学教育生态系统建构——以美国普渡大学为例

作为智能化社会的学科基础要素,大数据正在驱动着高等教育系统的范式变革。美国普渡大学一体化数据科学首倡计划发起的跨学科学术组织变革,强调以跨学科学位项目与学科交叉课程、学科会聚研究计划与研究团队、服务性学习数据社区与主题工作坊、产教融合的数据科学校企合作模式构建高校数据科学教育生态系统。值此加强新时代教育科学研究的战略契机,以"数据+"引导多学科会聚和教育模式创新,打造面向真实世界的数据科学实践社区,建设校企协同产教融合共同体,加快培育大学生数据思维和校园数据文化,将有助于高等教育治理体系改革和治理能力现代化的实现。     

数字图书馆的数据迁移技术

本文简单介绍了当前数字图书馆建设与数据库技术的发展，并着重介绍了数据迁移技术的概念、一般步骤和其实现方法。     

滚齿机床工作台偏差数据采集与补偿系统

本文介绍一种基于PC的数控滚齿机床工作台偏差数据采集与补偿系统。该系统充分利用了一块AC6011数据采集卡实现了多路采集与控制功能,结合PC机强大的数据处理功能与软件的良好支持,实现了智能数据采集与补偿系统的低成本开发。