Social media opinion summarization using emotion cognition and convolutional neural networks     

《International Journal of Information Management》2020

Quickly and accurately summarizing representative opinions is a key step for assessing microblog sentiments. The Ortony-Clore-Collins (OCC) model of emotion can offer a rule-based emotion export mechanism. In this paper, we propose an OCC model and a Convolutional Neural Network (CNN) based opinion summarization method for Chinese microblogging systems. We test the proposed method using real world microblog data. We then compare the accuracy of manual sentiment annotation to the accuracy using our OCC-based sentiment classification rule library. Experimental results from analyzing three real-world microblog datasets demonstrate the efficacy of our proposed method. Our study highlights the potential of combining emotion cognition with deep learning in sentiment analysis of social media data.  相似文献   

If you Build it,They Won’t Come: What Motivates Employees to Create and Share Tagged Content: A Theoretical Model and Empirical Validation     

《International Journal of Information Management》2020

The purpose of this paper is to investigate factors influencing employees’ knowledge-sharing behavior on social tagging supported systems. Using the strong theoretical background of the well-known technology acceptance model (TAM), this paper proposes and empirically validates a model that fits the social and technical nature of social tagging tools within the public sector. The analyses in this paper were based on data collected from a large survey of more than 480 respondents working for two public organizations in the United States. The findings demonstrate a significant impact of the role of social presence in encouraging employees to create and share content. Further, there is a strong relationship between the benefits employees receive from using tagging tools and their creation and sharing of tagged content. Specifically, the following factors showed a significant impact on employees’ creation and sharing behavior, specifically their attitudes towards and intentions to create and share tags: perceived ease of use, perceived usefulness, social presence, and pro-sharing norms. For researchers, the paper offers an opportunity to further study knowledge-sharing behavior regarding social media technologies. The findings should motivate practitioners to inject these tools with a social aspect so that employees are encouraged to share content.  相似文献   

基于多方博弈的网络舆情协同共生机制研究     

张凤哲 《情报探索》2020,(2):21-27

[目的/意义]旨在加强网络舆情参与主体的协同,提高对网络舆情的控制和引导能力,营造良好的网络环境。[方法/过程]基于博弈论思想和生态学中的共生理论,从舆情主体角度考虑,通过对各阶段博弈模型的分析和求解,深入挖掘网络舆情发展路径中各个博弈方的最稳定选择,构建网络舆情协同共生机制。[结果/结论]提出强化共生单元协同交互功能、营造正向共生环境、打造对称互惠一体化协同模式等对策,为政府和社会对网络舆情的引导和应对提供决策支持。  相似文献   

大学生精准资助下育人体系构建研究     

杨志增  林雪迎 《科教文汇》2020,(4):15-17

随着精准化资助投入资金不断增加,受资助学生数量也不断增加。与此同时就有许多问题涌现,如高校贫困生评定困难、贫困资助工作质量参差不齐、贫困生出现心理困境,等等。为了更精准化地资助,我们提出通过大数据分析确定贫困生群体,建立信息化动态贫困生数据库,构建网络心理咨询、思想教育平台等方法,真正做到精准资助与育人相结合。  相似文献   

德育教育要做到敢于实践     

史静华  刘淑莲 《科教文汇》2020,(7):163-164

德育工作是一门实践性很强的工作。实践性是学校德育工作的生命,离开了实践,德育工作会成为无源之水、无本之木,也就失去了生命力,只有把德育工作植根于丰富的实践之中,才有旺盛的生命力。德育工作没有固定的模式,全靠我们大胆地去试、去闯。多年来,笔者以很大精力投入于学校德育工作实践,先后进行了少则数小时、多达数年的德育工作实验。归纳起来,主要是围绕着对学生思想道德素质的培养,组织、指导学生进行道德实践,指导学生在假期社会实践等几方面做一些尝试。  相似文献   

网络资源在小学语文教学中的应用     

万艺  吕子卓 《科教文汇》2020,(13):131-132

随着社会的进步和科技的发展,互联网与人们的生活关系越发密切。在语文课堂中,有效利用网络创新教学方法,可以提高学生的语文学习兴趣,增强学生的读写能力。当前信息技术在小学语文课堂中不断推广,影响着教学效果和质量。运用多种信息技术可以将课本内容和图片、影音等教学素材完美结合,从而充分发挥小学生在课堂教学中的主体地位,提高教学效率和教学质量。  相似文献   

浅析广播融媒体直播车的系统构成及功能实现     

王君媚 《演艺科技》2020,(1):83-86

江苏省广播电视总台新建广播融媒体直播车,集成音视频系统,并运用无线自组网、4G传输及卫星“动中通”等通信技术组成稳定可靠的传输系统,实现可移动的融媒体直播。  相似文献   

音视频传输系统中的网络融合     

兆翦 《演艺科技》2020,(1):80-82

基于音视频系统对IT技术的需求,分析在进行AV传输系统设计中,重点考虑网络拓扑结构、服务质量管理、PTP时钟三个问题。  相似文献   

The neural bases of vitality forms     

Giuseppe Di Cesare  Marzio Gerbella  Giacomo Rizzolatti 《国家科学评论(英文版)》2020,7(1):202

Unlike emotions, which are short-lasting events accompanied by viscero-motor responses, vitality forms are continuous internal states that modulate the motor behaviors of individuals and are devoid of the autonomic modifications that characterize real emotions. Despite the importance of vitality forms in social life, only recently have neurophysiological studies been devoted to this issue. The first part of this review describes fMRI experiments, showing that the dorso-central insula is activated during the execution, the perception and the imagination of arm actions endowed with different vitality forms as well as during the hearing and the production of speech conveying vitality forms. In the second part, we address the means by which the dorso-central insula modulates the networks for controlling action execution and how the sensory and interoceptive information is conveyed to this insular sector. Finally, we present behavioral data showing the importance of vitality forms in social interactions.  相似文献   

黄河流域河源区土地利用变化及其影响研究综述   总被引：4，自引：0，他引：4  

陈琼  张镱锂  刘峰贵  周强  汪生珍  成艺  郭蓉  支泽民  许寰戈 《资源科学》2020,42(3):446-459

黄河流域河源区是国家生态屏障和“中华水塔”的重要组成部分,是生态保护优先的践行区。本文梳理了近40年来对黄河流域河源区土地利用格局和过程研究的相关文献,从土地利用现状、变化、效应及政策启示等方面进行了全面分析。研究发现：①黄河流域河源区土地利用格局相对稳定,草地面积占绝对优势。2000年是土地利用及其效应变化的重要转折点。2000年之前,草地、林地和湿地等生态用地减少,草地退化、沙化、土壤侵蚀等效应加剧。2000年之后,生态用地增加,植被指数增加,生态系统逐渐向良性方向转变,碳汇功能增强。②生态工程实施和气候变化使该区域土地利用及其效应极具复杂性。整体上土地退化面积有所减少,程度趋缓,草畜基本实现平衡。东部河湟谷地耕地面积减少,集约度提高,种植结构逐步优化;但局部恶化的态势依旧严峻,土壤侵蚀尤其高寒地带的冻融侵蚀加剧。建议应加强土地利用格局变化的影响因素、土地利用变化的生态效应以及生态保育区溢出价值与自然资产的评估研究,为黄河流域河源保护区可持续发展以供有力的科技支撑。  相似文献