地方院校非计算机专业计算机基础课程教学模式探讨     

张小梅  唐林海  周长敏 《凯里学院学报》2011,29(6)

“分类分层次教学”是一个“古老”的话题.在对我校“计算机基础”课程的教学基础上,再论“大学计算机基础”课程的分类分层次教学,指出了该课程目前在教学内容的安排和组织上存在的主要问题,并提出了相应的改革思路.  相似文献   

民族教育价值论   总被引：1，自引：0，他引：1  

李官 《当代教育与文化》2011,3(6):69-73

价值的实现涉及主体需要、客体功能和客体功能对主体需要的满足程度三个因素。教育价值与民族教育价值是普遍与特殊的关系,民族教育具有教育的各种价值,民族教育价值的本质性就是要突出其＂民族性＂,即＂文化性＂。其价值主要由民族教育的个体价值（民族教育能满足民族成员和族群生存和发展的需要）和民族教育的社会价值（民族教育能满足各民族文化和中华民族文化的传承和发展需要）构成。  相似文献   

改善和提高参数单侧假设检验教学效果的实践与探索     

李景和 《教学研究(河北)》2015,(3)

分析了参数单侧假设检验教学的现状和存在的问题,提出和论证在该部分内容的教学中应注意讲好思想方法、确定好小概率事件和适当介绍参数单侧检验中原假设的确立原则。通过加强这三个方面的工作,以期缓解学生学习的畏难情绪,提高学生的学习兴趣,从而有效改善和提高参数单侧假设检验的教学效果。  相似文献   

媒体责任的偏失与纠正——关于香港“幼童便溺”舆情事件的建构分析     

李海权 《江西师范大学学报(哲学社会科学版)》2015,(3):125-129

"幼童便溺"的舆情事件从微观层面看,这是媒体在不良新闻价值观作祟下制造的一起舆情事件。从中观层面分析,能够看到舆情事件背后刻板成见的影响。而从宏观角度看,此类事件的舆情建构使得两地关系的拟态环境趋于紧张化,不利于团结发展的大局。推进媒体负责任的新闻建构,加强两地信息的充分沟通,有利于净化两地舆论环境,形成健康的社会拟态环境,促进两地团结共荣。  相似文献   

Sentinel events predicting later unwanted sex among girls: A national survey in Haiti, 2012     

《Child abuse & neglect》2015

Sexual violence against children is a significant global public health problem, yet limited studies exist from low-resource settings. In Haiti we conducted the country's first, nationally representative survey focused on childhood violence to help inform the development of a national action plan for violence against children. The Haiti Violence Against Children Survey was a household-level, multistage, cluster survey among youth age 13–24. In this analysis we sought to determine whether sexual violence sentinel events (unwanted sexual touching or unwanted attempted sex) were predictive of later unwanted, completed, penetrative sex in Haiti. We also sought to explore characteristics of sentinel events and help-seeking behavior among Haitian children. Multivariable logistic regression was used to test associations between sentinel events and later unwanted, completed, penetrative sex. Overall, 1,457 females reported on experiences of sexual violence occurring in childhood (before age 18). A sentinel event occurred in 40.4% of females who experienced subsequent unwanted completed sex. Females experiencing a sentinel event were approximately two and a half times more likely to experience later unwanted completed sex (adjusted odds ratio = 2.40, p = .004) compared to individuals who did not experience a sentinel event. The mean lag time from first sentinel event to first unwanted completed sex was 2.3 years. Only half (54.6%) of children experiencing a sentinel event told someone about their experience of sexual violence. Among children, sentinel events occur frequently before later acts of completed unwanted sex and may represent a useful point of intervention. Reporting of sexual violence by children in Haiti is low and can be improved to better act on sentinel events.  相似文献   

Constructing a theory of individual space: understanding transnational migration through the experience of return Chinese immigrants from Canada in Beijing     

Yueya Ding 《Globalisation, Societies & Education》2015,13(2):260-275

Drawing on life history research, this study critically examines the transnational experiences of return Chinese immigrants from Canada in Beijing. Through the accounts of their experiences, it explores different integration and reintegration strategies, including self-adjustment, lifelong learning and flexible citizenship. A native concept of ‘space’ is examined and a theory of individual space (IS) is constructed. The study demonstrates that immigrants' integration is a process of constant construction and reconstruction of their expected IS in various societies. This space defines the self and its relationship to others and the outside world. By spatial transformation, migrants break spatial limitations to seek a better future. The tension between IS and the society the migrant enters determines the ongoing characteristics of contemporary transnational migration.  相似文献   

单粒子翻转对神经网络的影响分析与优化     

王慧玲  谢卓辰  梁旭文 《中国科学院大学学报》2021,38(6):832-840

DNN芯片作为星载芯片应用到卫星系统中时会受到太空辐照的影响,其中单粒子翻转对存储单元的干扰会使得存储器单元的参数出现错误,该错误映射到神经网络中会造成神经网络最后的输出结果出现偏差。结合单粒子翻转概率模型,对用于网络推断的神经网络的权值参数进行注错后分析实验结果准确率,从激活函数的非线性特性分析并通过实验验证具有双边抑制效果的函数容错能力更强。进一步在网络卷积层后加入BN层和在训练过程中考虑L2正则化提高网络的容错能力,并通过实验验证其可行性。  相似文献   

基于系统动力学的网络舆情风险模型仿真研究     

高航  丁荣贵  Ding Ronggui 《情报杂志》2014,(11)

舆情事件在网络传播的迅捷性、互动性与广泛性等特征催化下,风险不断上升,对社会稳定造成重大负面影响。鉴于网络舆情风险是多因素互动的结果,从舆情信息扩散效率、舆情主体传播能力、网络媒体作用水平、舆情受众共鸣程度等模块建立了系统动力学模型,并利用Vensim PLE进行了模拟仿真。仿真结果表明,舆情敏感度、主体活跃度、媒体影响力、受众参与度等变量与网络舆情风险存在较强互动关系,能够对后者产生较大影响。  相似文献   

基于事件抽取技术的听证公开文本挖掘方法研究     

丁思媛  乔晓东  张运良 《情报杂志》2022,(1)

[研究目的]为了帮助政府、企业和科研人员从海量的听证公开文本中发现科技相关政策和热点,快速、全面地识别出有价值的信息。[研究方法]梳理听证公开文本的类型与特点,并对其中有价值的信息进行合理的界定与分类;根据文本的内容特征和话语特征提出事件句识别、事件类型检测和事件论元抽取的三阶段式事件抽取方法,以实现有价值信息的抽取;对抽取的有价值信息进行深入分析。[研究结论]与基准模型相比,该研究所提方法在事件句识别召回率上提高33%,F₁提高17%,在事件类型检测的精确率上提高1%,在事件论元抽取的精确率上提高18%,召回率提高4%,取得了一定效果,为此类文本进一步分析提供了新研究思路。  相似文献   

我国艺术体操个人项目身体难度的现状与发展走向     

汪敏  韩静 《南京体育学院学报(社会科学版)》2014,(3):100-104

运用文献资料、数理统计、分析归纳、录像分析等研究方法,以新奥运周期（2013 2016）国际艺术体操评分规则精神为切入点,对2013年全国艺术体操锦标赛成年个人全能前8名运动员四项器械,共计32个成套动作进行深入剖析。依据新规则导向下艺术体操个人项目评分体系变化特点,重点研究了身体难度的现状与发展走向。结果表明：身体难度是艺术体操技术发展的主旋律,优化选择身体难度的价值,提高成套动作的技术含量;创意选编身体难度的类型,丰富成套动作的艺术内涵。因此,个人项目身体难度的发展应向＂高难＂、＂优美＂、＂多样＂、＂高质＂全新方向迈进。  相似文献