2020年北京中考“科普阅读”开放性设问对教学的几点启示

“科普阅读”作为近几年北京中考必考的题型,对初中物理课堂教学具有一定的指导意义,2020年北京中考科普阅读开放性设问的考查,要求物理教师在教学中要重视学习能力培养,发掘和应用教材,关注生活现象和常识,关心科技发展,以促进学生全面发展.     

试论以人为本的人力资源管理

"以人为本"是新时期人力资源管理的重要思想。在阐述以人为本的人力资源管理基本内涵的基础上,指出了现实中存在的一些关于"以人为本"的误区,提出了新时期"以人为本"的人力资源管理新思路。     

基于不完备信息系统的相容性研究

本文主要研究了粗糙集理论中不完备系统的完备化及其相容性问题,并将其置于数据库环境之下进行了探讨。     

三边承受线性载荷悬臂矩形板的弯曲

本文利用变分的原理讨论悬臂矩形板的弯曲问题,计算简单,精度较好。     

Machine Learning Literacy for Measurement Professionals: A Practical Tutorial

The COVID-19 pandemic has accelerated the digitalization of assessment, creating new challenges for measurement professionals, including big data management, test security, and analyzing new validity evidence. In response to these challenges, Machine Learning (ML) emerges as an increasingly important skill in the toolbox of measurement professionals in this new era. However, most ML tutorials are technical and conceptual-focused. Therefore, this tutorial aims to provide a practical introduction to ML in the context of educational measurement. We also supplement our tutorial with several examples of supervised and unsupervised ML techniques applied to marking a short-answer question. Python codes are available on GitHub. In the end, common misconceptions about ML are discussed.