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基于深度神经网络的社会媒体网络分析 被引量:5
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作者 张艳红 王宝会 《计算机科学》 CSCD 北大核心 2016年第4期252-255,263,共5页
社会媒体网络中不仅包含了用户、文本、图片和视频等多种模态的数据,还包含了反映不同模态数据之间交互的群体特征。为了更好地描述社会媒体网络,从而为上层应用提供更好的服务,提出了一种基于深度神经网络的社会媒体网络模型。该模型... 社会媒体网络中不仅包含了用户、文本、图片和视频等多种模态的数据,还包含了反映不同模态数据之间交互的群体特征。为了更好地描述社会媒体网络,从而为上层应用提供更好的服务,提出了一种基于深度神经网络的社会媒体网络模型。该模型采用深度神经网络对单个模态的数据进行学习,从而得到任意一个模态数据的潜在特征表示方法。对于两种不同模态的数据,利用具有高斯分布的先验矩阵与两个模态数据的后验分布建立反映这两个模态数据间群体特征的生成模型。实验结果表明,提出的模型在网络结构的链接分析中具有更好的预测效果,能有效地描述社会媒体网络的整体特征。 展开更多
关键词 深度学习 神经网络 社会媒体网络 特征学习 链接预测
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基于社会媒体网络的聚类方法的研究 被引量:4
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作者 黄蓝会 《微型电脑应用》 2016年第6期1-2,7,共3页
社会媒体网络属于典型的复杂网络,将复杂网络中的聚类分析方法应用到社会媒体网络中的社团结构研究从而提出了将网络中的节点转化成代数空间上的数据对象,以及通过节点相似性系数来研究社团结构。最后通过仿真实验证明,利用节点相似性... 社会媒体网络属于典型的复杂网络,将复杂网络中的聚类分析方法应用到社会媒体网络中的社团结构研究从而提出了将网络中的节点转化成代数空间上的数据对象,以及通过节点相似性系数来研究社团结构。最后通过仿真实验证明,利用节点相似性系数得到的社团发现准确率较高。 展开更多
关键词 在线社会网络 社会媒体网络 聚类分析 数据挖掘
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社会化网络媒体关注与审计费用——基于微博媒体数据的分析 被引量:6
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作者 尹美群 张继东 刘帆 《科学决策》 CSSCI 2016年第11期18-38,共21页
以2012-2014年创业板上市公司数据为研究对象,抓取新浪微博公众号上对被审计企业负面报道的关键词,研究了社会化网络媒体的负面报道对审计费用的影响。研究发现,媒体对上市公司的态度越负面其审计费用越高;但重复负面报道对审计费用的... 以2012-2014年创业板上市公司数据为研究对象,抓取新浪微博公众号上对被审计企业负面报道的关键词,研究了社会化网络媒体的负面报道对审计费用的影响。研究发现,媒体对上市公司的态度越负面其审计费用越高;但重复负面报道对审计费用的影响却是无效的。另外,相比"十大"会计师事务所,非"十大"会计师事务所对被审计单位负面消息更加敏感。在被审计单位被媒体负面报道后,新任会计师事务所会要求更高的审计费用。上期审计意见为非标意见对审计费用有正向影响,但其并没有增强媒体关注对于审计费用的影响效果。 展开更多
关键词 社会网络媒体 媒体关注 审计费用
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普适传播:社会网络媒体环境中的传播方式浅析
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作者 孙琳 《新闻世界》 2011年第12期120-121,共2页
随着微电子技术、计算机技术以及互联网技术的飞速发展,人类逐渐进入了普适网络环境,能够在任何时间、任何地点,以任何方式访问网络。新型的社会网络媒体(Social Network Media)发展迅猛,人们的传播方式发生了翻天覆地的变化。本文关注... 随着微电子技术、计算机技术以及互联网技术的飞速发展,人类逐渐进入了普适网络环境,能够在任何时间、任何地点,以任何方式访问网络。新型的社会网络媒体(Social Network Media)发展迅猛,人们的传播方式发生了翻天覆地的变化。本文关注社会网络媒体环境中的新型传播方式——普适传播,从普适传播的概念、特征、发展现状、面临问题以及未来发展几个方面进行了阐述。 展开更多
关键词 普适传播 社会网络媒体 社会媒体 媒体
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论网络媒体对社会主义核心价值观的有效传播——评《网络媒体传播社会主义核心价值观研究》 被引量:3
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作者 王心 《新闻爱好者》 CSSCI 北大核心 2019年第8期I0020-I0020,共1页
随着我国社会经济特别是现代信息化技术的不断发展,网络媒体在信息传播、社会交往过程中的重要性得到了凸显,"新媒体时代"已经全面来临。网络媒体的持续渗透使得人们的生产生活方式、交流方式甚至社会结构等都有较大变革,如... 随着我国社会经济特别是现代信息化技术的不断发展,网络媒体在信息传播、社会交往过程中的重要性得到了凸显,"新媒体时代"已经全面来临。网络媒体的持续渗透使得人们的生产生活方式、交流方式甚至社会结构等都有较大变革,如现代网络媒体语境下的社会主义核心价值观这一内容的有效传播就是其中的典型案例。 展开更多
关键词 网络媒体传播社会主义核心价值观研究》 网络媒体 社会主义核心价值观 有效传播
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基于链接关系的半监督特征选择算法 被引量:1
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作者 王亦兵 潘志松 +2 位作者 吴君青 贾波 胡谷雨 《模式识别与人工智能》 EI CSCD 北大核心 2014年第2期166-172,共7页
社会媒体网络产生的海量、高维无标记数据给数据处理工作带来巨大挑战,同时数据样本间构成的链接图信息在现有模式识别算法中难以有效利用.基于此,文中充分挖掘社会媒体网络数据链接关系图,结合部分监督信息提出一种基于链接关系的半监... 社会媒体网络产生的海量、高维无标记数据给数据处理工作带来巨大挑战,同时数据样本间构成的链接图信息在现有模式识别算法中难以有效利用.基于此,文中充分挖掘社会媒体网络数据链接关系图,结合部分监督信息提出一种基于链接关系的半监督特征选择算法(SSLFS).该算法利用谱分析和稀疏约束,使得选出的特征子集保持原数据的局部流形和稀疏特性.在社会媒体数据集Flickr上的实验结果表明,SSLFS相比其他特征选择方法得到的特征子集在分类性能上有较显著提高. 展开更多
关键词 社会媒体网络 关联数据 半监督学习 特征选择 稀疏学习 流形学习
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一种基于模糊相似关系的局部社区发现方法 被引量:10
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作者 刘井莲 王大玲 +1 位作者 冯时 张一飞 《软件学报》 EI CSCD 北大核心 2020年第11期3481-3491,共11页
近几年,在线社交媒体发展飞速,出现了大规模社会网络.传统的基于网络全局结构的社区发现方法难以有效地处理这些大网络.局部社区发现作为一种无需知道网络的全局结构、仅通过分析给定节点的周围节点之间的关系即可找出给定节点所在社区... 近几年,在线社交媒体发展飞速,出现了大规模社会网络.传统的基于网络全局结构的社区发现方法难以有效地处理这些大网络.局部社区发现作为一种无需知道网络的全局结构、仅通过分析给定节点的周围节点之间的关系即可找出给定节点所在社区的方法,在社会网络大数据分析中具有重要的应用意义.针对真实世界网络结构中个体间的相似关系是模糊的或不确定性的,提出了一种基于模糊相似关系的局部社区发现方法.首先,采用模糊关系来描述两个节点之间的相似关系,以节点对的相似度作为该模糊关系的隶属函数;然后证明了该关系是一种模糊相似关系,将局部社区定义为给定节点关于模糊相似关系的等价类,进而采用最大连通子图算法求得给定节点所在的社区.分别在仿真网络和真实网络上进行了实验,实验结果表明,该算法能够有效地揭示出给定节点所在的局部社区,相比其他算法,具有更高的F-score. 展开更多
关键词 社会媒体网络 局部社区发现 模糊相似关系 社区结构
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New Media, Public Sphere, and Arab Spring: Demystifying the Power of Social Networks 被引量:1
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《Journalism and Mass Communication》 2013年第4期226-239,共14页
This paper looks at the new media, communication, and political environment in both Tunisia and Egypt during and after the revolution. The new environment provided activists, politicians, civil society, and youth amon... This paper looks at the new media, communication, and political environment in both Tunisia and Egypt during and after the revolution. The new environment provided activists, politicians, civil society, and youth among others, who want to express their opinions and share their views, with various channels and means of corranunication to be part of the political action and to participate in the decision-making process. Social media played an important role in mobilizing youth to rally and protest. This is to say that a new model of communication has emerged with this new environment. The receiver has become the sender and the producer of the message. The process of communication, therefore, has been changed from one to many to from many to many, and everybody became sender and receiver at the same time. The main research question this paper aims to answer is: Are social networks enough to change the political and economic scene in the Arab World? And is there a relationship between the new communication environment and Arab spring? The year 2011 has been in the Arab world the year of social networks and radical changes in the political scene where a score of dictators were ousted. New political communication networks and mechanisms took place, and for the first time in Arab political communication, public opinion was a major political player. Social networks helped tremendously the formation of new public sphere where the public finds its way in the media and communication processes. At their best, new media can mobilize crowds and masses to rally and protest. They can give a social perspective to movements. However, they can't make change and implement democracy. After the collapse of the regimes in Tunisia and Egypt, things are not getting any better. There is no democratic transition, and both countries are experiencing complex economic, social, and political problems. 展开更多
关键词 social networks new media Arab Spring public sphere socioeconomic and political change
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The Rise of the Far Right in Europe and the Refugee Crisis
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作者 Luo Yingjie Zhang Zhaoxi 《Contemporary International Relations》 2017年第2期92-106,共15页
The rise of the far right in Europe has captured the attention of the international community in recent years. Its specific features are: an unprecedentedly strong influence, an obvious trend towards the moderate line... The rise of the far right in Europe has captured the attention of the international community in recent years. Its specific features are: an unprecedentedly strong influence, an obvious trend towards the moderate line, horizontal collaboration to expand its reach, and a very adept use of social media networks. The refugee crisis has given the far right an historical opportunity. The rise has also had a profound effect on European politics; it has deepened the political divide inside EU member states, and shaken up the traditional political values and the foundation of the union.The rise of the far right will likely not change Europe's political landscape, but problems of EU governance over its handling of the refugee crisis cannot be ignored. 展开更多
关键词 EUROPE far right political influence refugee crisis
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Social Media Is the New Punk User Experience, Social Music and DIY Culture
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作者 Giovanni Prattichizzo 《Journal of Literature and Art Studies》 2015年第9期749-762,共14页
In the digital convergence culture (Jenkins, 2006) and in the network society (Castells, 1996), the theories of personal branding, social identity, and the two-step flow of communication have become intertwined to... In the digital convergence culture (Jenkins, 2006) and in the network society (Castells, 1996), the theories of personal branding, social identity, and the two-step flow of communication have become intertwined to create a model through which individuals and musicians share and embrace music. This paper examines the rise of social network for music involving both the practices of use and consumption and those of creation, sharing and distribution of innovative and independents musical reality. Social media have introduced radical changes in social and musical practices increasing the ability of creation from the bottom in contrast to mainstream. Moreover, thanks to performativity, collaboration and participation offering by Web 2.0, fit fully in culture "DIY 2.0" offering an interesting chance for the emerging underground music. 展开更多
关键词 social music DIY culture social media neo-txibalism consumer engagement
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Generation Y and Online Advertising: Perceptions and Preferences of Social Media Networking Sites (SMNSs)
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作者 Bellarmine A. Ezumah 《Journalism and Mass Communication》 2013年第6期343-350,共8页
Because most people consider advertising as an irritant and a distraction and would avoid it, should there be an alternative, advertising agencies strive to utilize the interactive, demassifying, and asynchronous qual... Because most people consider advertising as an irritant and a distraction and would avoid it, should there be an alternative, advertising agencies strive to utilize the interactive, demassifying, and asynchronous qualities of newer technologies to create an appealing advertisement. The current study investigates whether college students' attitudes toward advertising on traditional media are different when online advertising is used, especially on Social Media Networking Sites (SMNSs). Employing the concept of reciprocity (of replicating offline attitudes online) and the flow theory that relates one's concentration on an activity and its impact on other occurrences happening around him/her, 287 college students responded to a questionnaire on their perceptions of online advertising, their preferred SMNS, and the SMNS on which they would consider viewing an advertising message. The results showed that 57.8% of the participants avoid online advertising at all costs, which is similar to their offline perception of advertising. Some 42.2% reported that they may consider viewing online advertising if the attributes of relevance, interest, creativity, and interactivity are present, as in viral advertisement. In addition, among the four SMNSs reviewed--Facebook, MySpace, Twitter, and Linkedln--a majority of students indicated that Facebook is their preferred site for online advertising because it allows for creativity and they consider those messages credible, especially if their Facebook friends tagged, liked, or shared the advertisement. 展开更多
关键词 online advertising FACEBOOK TWITTER Linkedln Generation Y
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Followers of the Social Media Network and National Security
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作者 Yu Chen 《International English Education Research》 2014年第9期44-46,共3页
With the social media networks development quickly, the followers of the social media network' s behaviors have taken a lot of damagers and threats to national security, and made the nation into unstable situations, ... With the social media networks development quickly, the followers of the social media network' s behaviors have taken a lot of damagers and threats to national security, and made the nation into unstable situations, even subverted the national sovereignty .This paper analyzes the characters of the followers of the social media in the Ira, Tunisia, Egypt and Libya's turmoil, concludes constructive suggestions how to ensure national stability and harmonious development, has some positive effect to our national security. 展开更多
关键词 Social Media Networks FOLLOWERS National Security
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基于搜索引擎的旅游网络口碑研究 被引量:1
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作者 韩燕飞 《中国报业》 2014年第4期81-82,共2页
本文以内容分析法为理论工具,以互联网中河南旅游网络口碑信息为研究对象,深入分析基于搜索引擎的旅游网络口碑传播,得出结论:搜索引擎中社会网络媒体网站提供的UGC内容是旅游地网络口碑的核心要素,在游客旅游决策中发挥着重大的作用。
关键词 搜索引擎 内容分析法 旅游网络口碑 社会网络媒体
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