Bruise dating using deep learning

The bruise dating can have important medicolegal implications in family violence and violence against women cases. However, studies show that the medical specialist has 50% accuracy in classifying a bruise by age, mainly due to the variability of the images and the color of the bruise. This research proposes a model, based on deep convolutional neural networks, for bruise dating using only images, by age ranges, ranging from 0–2 days to 17–30 days, and images of healthy skin. A 2140 experimental bruise photograph dataset was constructed, for which a data capture protocol and a preprocessing procedure are proposed. Similarly, 20 classification models were trained with the Inception V3, Resnet50, MobileNet, and MnasNet architectures, where combinations of learning transfer, cross‐validation, and data augmentation were used. Numerical experiments show that classification models based on MnasNet have better results, reaching 97.00% precision and sensitivity, and 99.50% specificity, exceeding 40% precision reported in the literature. Also, it was observed that the precision of the model decreases with the age of the bruise.     

加强听力策略训练 促进听力技能提高

对华师非英语专业部分学生听力学习情况的问卷调查结果表明 :听力教学应加强学习策略尤其是管理策略的训练 ,培养学生有计划、有目的、多渠道自主学习是提高听力技能的关键。     

浅议三个代表思想对高校党建工作的指导意义

“三个代表”重要思想是新时期高校党建工作的指针;它丰富了新时期高校党的建设工作的内涵;它明确了党的建设在高等院校素质教育中的作用;我们要积极贯彻、落实“三个代表”重要思想,使高等院校党的建设工作获得生机勃勃的新发展。     

试论学习型机关的建立

在新的历史条件下 ,创建学习型的机关 ,要树立终身学习的理念 ;精心培育机关文化 ;建立机关公务员培训制度、激励约束制度 ,确保干部培训制度化、经常化、规范化 ;不断自我超越 ,实现共同目标。     

浅谈学分制条件下学籍管理的改革

随着科学技术不断发展,实现和完善学分制并同时进行学籍管理改革,是高校教学改革的主要内容;学籍管理目前存在问题,探讨学分制条件下学籍管理改革,对高校学籍管理逐步科学化、简便化、规范化具有现实意义。     

Artificial Intelligence and Technology in Teaching Negotiation

Artificial intelligence (AI), machine learning (ML), affective computing, and big‐data techniques are improving the ways that humans negotiate and learn to negotiate. These technologies, long deployed in industry and academic research, are now being adopted for educational use. We describe several systems that help human negotiators evaluate and learn from role‐play simulations as well as applications that help human instructors teach negotiators at the individual, team, and organizational levels. AI can enable the personalization of negotiation instruction, taking into consideration factors such as culture and bias. These tools will enable improvements not only in the teaching of negotiation, but also in teaching humans how to program and collaborate with technology‐based negotiation systems, including avatars and computer‐controlled negotiation agents. These advances will provide theoretical and practical insights, require serious consideration of ethical issues, and revolutionize the way we practice and teach negotiation.     

民航“大改签”学生应有的学习态度

文章针对大学毕业生进行民航签派培训的情况,分析社会、行业和岗位对此类培训的要求,以及学生应有的学习态度。探讨了主动求知型、被动接受型、应付差事型和随波逐流型四个类型学生的学习特点,主张端正学习态度和动机,以正常心态面对学习,养成良好的职业习惯,为从事签派工作打下坚实基础。     

“学习超市”学习资源建设研究

开展职工素质教育,建设学习型组织是推进和谐社会建设的一个重要组成部分,也是一项系统的惠民工程。建设"学习超市"则是一种全新的教育方式和教育理念,它为职工素质教育赋予了新的特色。网上学习超市和实体学习超市是构筑首都职工素质建设工程和学习型组织的基础和载体,学习资源建设是"学习超市"生存与发展的关键问题,也是难点问题。     

学习变量说对公安“大教育、大培训”的启示

为了提高公安民警教育培训的质量,借鉴布卢姆的研究成果----学习变量说,详细分析了受训民警的认知前提能力,讨论了树立正确的学习态度和动机的方法,建立了科学评价体系,对公安民警培训模式的建立,具有重要的借鉴意义。