基于粗糙集加权的文本分类方法研究

文本自动分类是当前智能信息处理中一类重要的研究课题。本文分析了基于统计理论的文本分类的基本特点,提出采用可变精度粗糙集模型中的分类质量构造新的特征词权重计算公式。这种新的加权方法,相对于广泛使用的逆文本频率加权方法,大大改进了文本样本在整个空间中的分布,使得类内距离减少,类间距离增大,在理论上将提高样本的可分性。最后利用支持向量机和K近邻两种分类器,验证了这种新的加权方法对分类效果确实有所提高。     

Co-occurrence of adverse childhood experiences and its association with family characteristics. A latent class analysis with Dutch population data

BackgroundAlthough adverse childhood experiences (ACEs) are relatively common among children, there is limited knowledge on the co-occurrence of such experiences.ObjectiveThe current study therefore investigates co-occurrence of childhood adversity in the Netherlands and whether specific clusters are more common among certain types of families.Participants and SettingRepresentative data from the Family Survey Dutch population 2018 (N = 3,128) are employed.MethodWe estimate Latent Class Analysis (LCA) models to investigate co-occurrence of ACEs. As ACEs we examine maltreatment, household dysfunction, demographic family events, as well as financial and chronic health problems. Gradual measures for maltreatment and financial problems are studied to make it possible to differentiate with regard to the severity of experiences.ResultsOur results show that four ACE clusters may be identified: ‘Low ACE’, ‘Moderate ACE: Household dysfunction’, ‘Moderate ACE: Maltreatment’ and ‘High ACE’. Regression analyses indicated that mother’s age at first childbirth and the number of siblings were related to experiencing childhood adversity. We found limited evidence for ACEs to be related to a family’s socioeconomic position.ConclusionThe found clusters of ACEs reflect severity of childhood adversity, but also the types of adversity a child experienced. For screening and prevention of childhood adversity as well as research on its consequences, it is relevant to acknowledge this co-occurrence of types and severity of adversity.     

民办高校转型期英语专业基础英语课堂重构研究与实践

本文以赋权增能的教学理念为指导,重构基础英语课堂教学模式,此教学模式是以课堂活动为依托,最大程度的实现实践教学,从而达到对学生应用能力培养的教学目标。     

‘Operating on a Basis of Student Consent’: Peter Medway’s Work in Finding a Language

Written nearly 40 years ago, Peter Medway’s Finding a Language continues to be an arresting read, which offers a powerful vision of what might be possible in education. In this brief introduction, I set the work in context, referring to ideas that Pete engaged with and recalling a little of the times.     

建国前中国共产党资本主义观的回顾与思考

1919年五四爱国运动爆发，中国开启了新民主主义革命的进程。然而与一般的资本主义国家不同，在半殖民地半封建社会时期。中国的资本主义和资产阶级有着很大的特殊性。作为代表中国最广大人民根本利益的中国共产党从1921年成立到1949年新中国建立这近三十年的时间内，不可避免地与资本主义及其资产阶级发生了千丝万缕的关系，并在不同历史阶段采取了不同的策略。总结党在这一时期的历史经验对当下中国经济社会发展仍然有很大启示和教育意义。     

职校班主任职业倦怠成因及对策

职校班主任目前面临的压力非常大，是职业倦怠的高发人群。本文在学校管理实践的基础上，提出解决职校班主任职业倦怠的相关策略，即创建良好的人文环境，体现更多的人文关怀；进行工作环境的结构性调整，给班主任“减负”；重视班主任自我发展需要。追求人生的自我价值实现；加强班主任的心理健康教育与培训。     

智能云教学在高职英语中的应用研究

智能云教学是一种融入人工智能、基于云计算技术所开展的教学活动。智能云教学活动包括教学工具、教学内容、教学管理、教学监督与教学评价的全面云技术化和大数据化。从高职英语传统教学模式的痛点出发,分析了智能云教学给高职英语教学带来的契机,通过依托蓝墨云班课的教学实践,充分体现了"学生主体,教师主导"的教学理念,有效激发了学生的英语学习热情,帮助知识的内化和传递,提高了大学生的英语语言应用能力,促进了教师的职业发展。     

一类微分算子特征值的算法

采用Galerkin方法来构造适当的基函数,计算一类微分算子特征值的近似值,且可用第n次近似值来估计第n-1次近似值的精确度.随着n的增大,特征值λk的精确度逐步提高,只要适当选取n,就可以求得所需精确度的特征值的近似值,此算法具有一定的实用价值和理论价值.     

试论课堂教学与学生创新素质的培养

课堂教学从导入艺术性，提问的艺术性、教学方法、组织课堂的艺术性、课堂教具辅助教学、因材施教方面，培养学生探索、好奇、质疑、兴趣、想象、思维观察能力和个性发展等创新素质。     

“君子行礼，不求变俗”——析先秦时期冠礼的“特例”

《仪礼.士冠礼》详细、系统地记载了冠礼正礼的仪节。但是,冠礼仪式在正礼之外,还有一些特殊情形,主要有:用醮、庶子冠礼、孤子冠礼、是否用乐、冠者母不在、将冠而遇丧事、天子诸侯加冠,等等,反映了当时的礼制具有一定的弹性和地域差异、身份差异,而不是整齐划一的。