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A Predicting Model of TV Audience Rating Based on the Facebook 基于Facebook的电视收视率预测模型
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.167
Yu-Hsuan Cheng, C. Wu, Tsun Ku, Gwo-Dong Chen
TV audience rating is an important indicator regarding the popularity of programs and it is also a factor to influence the revenue of broadcast stations via advertisements. Presently, the only way for assessing audience rating is the Nielsen TV rating, which depends on a small number of randomly selected representative groups, because of practical considerations such as cost and survey time. The way to obtain audience rating is using 'People-meter' which is a device installed in user's house and regularly records the rating surveys. However, we are not able to know the audience rating immediately since sometimes we have to make a marketing decision and lack of indicator. Currently, the present media environments are drastically changing our media consumption patterns. We can watch TV programs on Youtube regardless location and timing. And Nielsen TV audience rating does not take the social networking site into account. In this paper, we develop a model for predicting TV audience rating. We accumulate the broadcasted TV programs' word-of-mouse on Facebook and apply the Back-propagation Network to predict the latest program audience rating. We also present the audience rating trend analysis on demo system which is used to describe the relation between predictive audience rating and Nielsen TV rating.
电视收视率是衡量节目受欢迎程度的一个重要指标,也是影响广播电台广告收入的一个因素。目前,收视率评估的唯一方法是尼尔森电视收视率,由于成本和调查时间等实际考虑,它依赖于随机选择的少数代表性群体。获得收视率的方法是使用“People-meter”,这是一个安装在用户家中的设备,并定期记录收视率调查。然而,我们不能立即知道收视率,因为有时我们必须做出营销决策,缺乏指标。当前的媒体环境正在极大地改变着我们的媒体消费模式。我们可以在Youtube上观看电视节目,无论地点和时间。尼尔森电视收视率并没有把社交网站考虑在内。在本文中,我们开发了一个预测电视收视率的模型。我们在Facebook上积累播出的电视节目的口碑,并运用反向传播网络预测最新的节目收视率。我们还对演示系统的收视率趋势进行了分析,用来描述预测收视率与尼尔森电视收视率之间的关系。
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引用次数: 13
Support Vector Machine Based Detection of Drowsiness Using Minimum EEG Features 基于支持向量机的最小EEG特征睡意检测
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.124
Shaoda Yu, Peng Li, H. Lin, E. Rohani, G. Choi, B. Shao, Qian Wang
Drowsiness presents major safety concerns for tasks that require long periods of focus and alertness. While there is a body of work on drowsiness detection using EEG signals in neuroscience and engineering, there exist unanswered questions pertaining to the best mechanisms to use for detecting drowsiness. Targeting a range of practical safety-awareness applications, this study adopts a machine learning based approach to build support vector machine (SVM) classifiers to distinguish between awake and drowsy states. While broadband alpha, beta, delta, and theta waves are often used as features in the existing work, lack of widely agreed precise definitions of such broadband signals and difficulty in accounting for interpersonal variability has led to poor classification performance as demonstrated in this study. Furthermore, the transition from wakefulness to drowsiness and deeper sleep stages is a complex multifaceted process. The richness of this process calls for inclusion of sub-band features for more accurate drowsiness detection. To shed light on the effectiveness of sub-banding, we quantitatively compare the performances of a large set of SVM classifiers trained upon a varying number of 1Hz sub band features. More importantly, we identify a compact set of neuroscientifcally motivated EEG features and demonstrate that the resulting classifier not only outperforms traditional broadband based classifiers but also is on a par with or superior than the best sub-band classifiers found by thorough search in a large space of 1Hz sub band features.
在需要长时间集中注意力和保持警觉的任务中,困倦是主要的安全问题。虽然在神经科学和工程学中有大量利用脑电图信号检测睡意的工作,但关于检测睡意的最佳机制仍存在未解决的问题。针对一系列实际的安全意识应用,本研究采用基于机器学习的方法构建支持向量机(SVM)分类器来区分清醒和困倦状态。虽然宽带α、β、δ和θ波在现有工作中经常被用作特征,但缺乏广泛同意的此类宽带信号的精确定义以及难以考虑人际变异性导致分类性能差,如本研究所示。此外,从清醒到困倦和深度睡眠阶段的过渡是一个复杂的多方面的过程。这一过程的丰富性要求包含子带特征,以便更准确地检测困倦。为了阐明子带的有效性,我们定量地比较了在不同数量的1Hz子带特征上训练的大量SVM分类器的性能。更重要的是,我们识别了一组紧凑的神经科学驱动的EEG特征,并证明了所得到的分类器不仅优于传统的基于宽带的分类器,而且与通过在1Hz子带特征的大空间中彻底搜索找到的最佳子带分类器相当或优于。
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引用次数: 38
Evaluating the Performance of Social Networks of Sensors under Different Mobility Models 不同移动模型下传感器社会网络的性能评价
Pub Date : 2013-09-08 DOI: 10.1109/SOCIALCOM.2013.62
Marcello Tomasini, F. Zambonelli, Angelo Brayner, R. Menezes
Sensor Networks are becoming ubiquitous in our society due to their broad applicability to data intensive tasks such as keeping air population to safe levels, efficient communication in military applications, to mention but a few. Furthermore, we have seen the emergence of sensor technology being integrated in everyday objects such as cars, traffic lights, phones, and even being attached to living beings such as dolphins, birds and humans. The consequence of this widespread use of sensors is that new sensor network infrastructures may be built out of static and mobile nodes. When mobility is a variable one should define which mobility model is best for the infrastructure given their differences. This paper evaluates which mobility pattern is best suited to be used in a Social Network of Sensors (SNoS). We evaluate several mobility models and measure the efficiency of information flow in a SNoS if mobile sensors follow these mobility patterns. The paper provides us with a greater understanding of the benefits of mobility in realistic scenarios.
传感器网络在我们的社会中变得无处不在,因为它们广泛适用于数据密集型任务,例如将空中人口保持在安全水平,军事应用中的有效通信,仅举几例。此外,我们已经看到传感器技术被集成到汽车、交通信号灯、电话等日常物品中,甚至附着在海豚、鸟类和人类等生物身上。传感器广泛使用的结果是,新的传感器网络基础设施可能建立在静态和移动节点之上。当移动性是一个变量时,考虑到它们之间的差异,应该定义哪种移动性模型最适合基础设施。本文评估了哪种移动模式最适合用于传感器社交网络(SNoS)。我们评估了几种移动模型,并在移动传感器遵循这些移动模式的情况下测量了SNoS中信息流的效率。这篇论文让我们更好地理解了在现实情况下移动出行的好处。
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引用次数: 9
Exploring Image Virality in Google Plus 在Google Plus中探索图像病毒式传播
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.101
Marco Guerini, Jacopo Staiano, Davide Albanese
Reactions to posts in an online social network show different dynamics depending on several textual features of the corresponding content. Do similar dynamics exist when images are posted? Exploiting a novel dataset of posts, gathered from the most popular Google+ users, we try to give an answer to such a question. We describe several virality phenomena that emerge when taking into account visual characteristics of images (such as orientation, mean saturation, etc.). We also provide hypotheses and potential explanations for the dynamics behind them, and include cases for which common-sense expectations do not hold true in our experiments.
对在线社交网络帖子的反应,根据相应内容的几个文本特征,表现出不同的动态。当图片发布时,是否存在类似的动态?利用从最受欢迎的Google+用户收集的帖子的新数据集,我们试图给出这样一个问题的答案。我们描述了当考虑到图像的视觉特征(如方向,平均饱和度等)时出现的几种病毒式传播现象。我们还为它们背后的动力提供假设和潜在的解释,并包括在我们的实验中常识预期不成立的案例。
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引用次数: 42
Automatic Crowdsourcing-Based Classification of Marketing Messaging on Twitter 基于自动众包的Twitter营销信息分类
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.155
Radu Machedon, W. Rand, Yogesh V. Joshi
As the volume of social media communications grow, many different stakeholders have sought to apply tools and methods for automatic identification of sentiment and topic in social network communications. In the domain of social media marketing it would be useful to automatically classify social media messaging into the classic framework of informative, persuasive and transformative advertising. In this paper we develop and present the construction and evaluation of supervised machine-learning classifiers for these concepts, drawing upon established procedures from the domains of sentiment analysis and crowd sourced text classification. We demonstrate that a reasonably effective classifier can be created to identify the informative nature of Tweets based on crowd sourced training data, we also present results for identifying persuasive and transformative content. We finish by summarizing our findings regarding applying these methods and by discussing recommendations for future work in the area of classifying the marketing content of Tweets.
随着社交媒体通信量的增长,许多不同的利益相关者都在寻求应用工具和方法来自动识别社交网络通信中的情绪和主题。在社交媒体营销领域,将社交媒体信息自动分类为信息性、说服性和变革性广告的经典框架将是有用的。在本文中,我们开发并展示了这些概念的监督机器学习分类器的构建和评估,借鉴了情感分析和人群源文本分类领域的既定程序。我们证明了可以创建一个相当有效的分类器来识别基于众包训练数据的推文的信息性质,我们还提供了识别有说服力和变革性内容的结果。最后,我们总结了我们关于应用这些方法的发现,并讨论了对推文营销内容分类领域未来工作的建议。
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引用次数: 11
Automatic Classification and Analysis of Interdisciplinary Fields in Computer Sciences 计算机科学跨学科领域的自动分类与分析
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.34
Tanmoy Chakraborty, Srijan Kumar, M. Reddy, Suhansanu Kumar, Niloy Ganguly, Animesh Mukherjee
In the last two decades, there have been studies claiming that science is becoming ever more interdisciplinary. However, the evidence has been anecdotal or partial. Here for the first time, we investigate a large size citation network of computer science domain with the intention to develop an automated unsupervised classification model that can efficiently distinguish the core and the interdisciplinary research fields. For this purpose, we propose four indicative features, three of these are directly related to the topological structure of the citation network, while the fourth is an external indicator based on the attractiveness of a field for the in-coming researchers. The significance of each of these features in characterizing interdisciplinary is measured independently and then systematically accumulated to build an unsupervised classification model. The result of the classification model shows two distinctive clusters that clearly distinguish core and interdisciplinary fields of computer science domain. Based on this classification, we further study the evolution dynamics at a microscopic level to show how interdisciplinarity emerges through cross-fertilization of ideas between the fields that otherwise have little overlap as they are mostly studied independently. Finally, to understand the overall impact of interdisciplinary research on the entire domain, we analyze selective citation based measurements of core and interdisciplinary fields, paper submission and acceptance statistics at top-tier conferences and the core-periphery structure of citation network, and observe an increasing impact of the interdisciplinary fields along with their steady integration with the computer science core in recent times.
在过去的二十年里,有研究声称科学正变得越来越跨学科。然而,这些证据都是道听途说或片面的。本文首次对计算机科学领域的大型引文网络进行了研究,旨在开发一种能够有效区分核心研究领域和跨学科研究领域的自动无监督分类模型。为此,我们提出了四个指示性特征,其中三个特征与引文网络的拓扑结构直接相关,而第四个特征是基于一个领域对进入研究者的吸引力的外部指标。这些特征在跨学科特征中的重要性被独立地测量,然后系统地积累,以建立一个无监督分类模型。分类模型的结果显示了两个不同的集群,清楚地区分了计算机科学领域的核心领域和跨学科领域。基于这一分类,我们进一步研究了微观层面上的进化动态,以展示跨学科是如何通过领域之间的思想交叉受精而产生的,否则这些领域几乎没有重叠,因为它们大多是独立研究的。最后,为了了解跨学科研究对整个领域的整体影响,我们分析了基于核心和跨学科领域的选择性引文测量、顶级会议的论文提交和接受统计以及引文网络的核心-外围结构,并观察到近年来跨学科领域的影响力不断增强,并与计算机科学核心稳步融合。
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引用次数: 12
Social Media Data Analytics Applied to Hurricane Sandy 应用于飓风桑迪的社交媒体数据分析
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.152
H. Dong, M. Halem, Shujia Zhou
Social media websites are an integral part of many people's lives in delivering news and other emergency information. This is especially true during natural disasters. Furthermore, the role of social media websites is becoming more important due to the cost of recent natural disasters. These online platforms are usually the first to deliver emergency news to a wide variety of people due to the significantly large number of users registered. During disasters, extracting useful information from this pool of social media data can be useful in understanding the sentiment of the public, this information can then be used to improve decision making. In this paper, we developed a prototype that automates the process of collecting and analyzing social media data from Twitter. Furthermore, we explore a variety of visualizations that can be generated by the tool in order to understand the public sentiment. We demonstrate an example of utilizing this tool on the Hurricane Sandy disaster between October 26, 2012 to October 30, 2012. Finally, we perform a statistical analysis to explore the causality correlation between an approaching hurricane and the sentiment of the public.
社交媒体网站在传递新闻和其他紧急信息方面是许多人生活中不可或缺的一部分。在发生自然灾害时尤其如此。此外,由于最近自然灾害造成的损失,社交媒体网站的作用正变得越来越重要。这些在线平台通常是第一个向各种各样的人提供紧急新闻的平台,因为它们的注册用户数量非常多。在灾难期间,从社交媒体数据池中提取有用的信息可以帮助了解公众的情绪,然后这些信息可以用来改进决策。在本文中,我们开发了一个原型,可以自动收集和分析来自Twitter的社交媒体数据。此外,我们还探索了该工具可以产生的各种可视化效果,以了解公众情绪。我们在2012年10月26日至10月30日的飓风桑迪灾难中展示了一个使用该工具的例子。最后,我们进行统计分析,探讨飓风逼近与公众情绪之间的因果关系。
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引用次数: 48
Composing Data Parallel Code for a SPARQL Graph Engine 为SPARQL图形引擎编写数据并行代码
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.104
Vito Giovanni Castellana, Antonino Tumeo, Oreste Villa, D. Haglin, J. Feo
The emergence of petascale triple stores have motivated the investigation of alternates to traditional table-based relational methods. Since triple stores represent data as structured tuples, graphs are a natural data structure for encoding their information. The use of graph data structures, rather than tables, requires us to rethink the methods used to process queries on the store. We are developing a scalable, in-memory SPARQL graph engine that scales to hundreds of nodes while maintaining constant query throughput. Our framework comprises a SPARQL to data parallel C compiler, a library of parallel graph methods, and a custom multithreaded runtime layer for multinode commodity systems. Rather than transforming SPARQL queries into a series of select and join operations on tables, our front end compiles the queries into data parallel C code with calls to graph methods that walk internal data structures, constructing answers in their wake. In this paper, we describe the compilation process and give examples of the generated C code parallelized with OpenMP. We present performance numbers for the SP2Bench SPARQL benchmark queries on a 48-core shared-memory system. With respect to conventional relational database systems such as Virtuoso, our approach uses less memory and provides higher performance.
千兆级三重存储的出现激发了对传统基于表的关系方法的替代研究。由于三重存储将数据表示为结构化元组,因此图是编码其信息的自然数据结构。使用图形数据结构而不是表,需要我们重新考虑用于处理存储查询的方法。我们正在开发一个可扩展的、内存中的SPARQL图引擎,它可以扩展到数百个节点,同时保持恒定的查询吞吐量。我们的框架包括一个SPARQL到数据并行的C编译器、一个并行图方法库和一个用于多节点商品系统的定制多线程运行时层。我们的前端并没有将SPARQL查询转换为一系列表上的选择和连接操作,而是将查询编译为数据并行的C代码,并调用图形方法来遍历内部数据结构,并在其后构造答案。在本文中,我们描述了编译过程,并给出了与OpenMP并行生成的C代码的示例。我们给出了在48核共享内存系统上SP2Bench SPARQL基准查询的性能数字。与传统的关系数据库系统(如Virtuoso)相比,我们的方法使用更少的内存并提供更高的性能。
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引用次数: 4
The Use of Social Context to Enhance Mobile Web Search Experience 利用社交环境来增强移动网络搜索体验
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.143
Nour Salama, S. Aly, Ahmed Rafea
Web access, especially through search, is by far one of the most popular operations performed on mobile devices. It is very interesting how the Mobile and Social worlds have significantly converged in many interesting ways, the least of which is the ability to simply access social networks on the move. However, much literature indicates how search results, and in specific mobile search is far from satisfactory in terms of meeting user intent and need. This has ultimately led to the introduction of context-aware web search to obtain more adequate results. In this research, we focus on using social context obtained from user social networks to refine search queries. Our initial target is to propose a system that will ultimately demonstrate the effectiveness of integrating this type of context when conducting mobile search. We also describe how we will utilize this system to classify user queries issued on mobile devices to determine the degree by which social context used, to then reformulate the queries by augmenting relevant context, and then finally ranking the results to match user needs.
网络访问,尤其是通过搜索,是目前移动设备上最流行的操作之一。有趣的是,手机和社交世界已经以许多有趣的方式显著融合,其中最不重要的一点就是移动中访问社交网络的能力。然而,许多文献表明,搜索结果,特别是移动搜索,在满足用户意图和需求方面远远不能令人满意。这最终导致了上下文感知网络搜索的引入,以获得更充分的结果。在本研究中,我们着重于使用从用户社交网络中获得的社会语境来优化搜索查询。我们最初的目标是提出一个系统,最终将证明在进行移动搜索时整合这种类型的上下文的有效性。我们还描述了我们将如何利用该系统对移动设备上发出的用户查询进行分类,以确定使用社会上下文的程度,然后通过增加相关上下文来重新制定查询,最后对结果进行排序以匹配用户需求。
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引用次数: 2
Threat Modeling for Security Failure-Tolerant Requirements 安全容错需求的威胁建模
Pub Date : 2013-09-08 DOI: 10.1109/SocialCom.2013.89
M. Shin, Swetha Dorbala, Dongsoo Jang
This paper describes an approach to modeling security threats to applications and to deriving security failure-tolerant requirements from the threats. This paper assumes that unbreakable core security services for applications, such as authentication, access control, cryptosystem, or digital signature, are broken all the time in a real-world setting. The UML use case model for application requirements is analyzed to model security threats to the system in terms of threat points at which each threat is described using a structured template. This paper also derives security failure-tolerant requirements from the threats at threat points, and the requirements are modeled by means of security failure-tolerant use cases separately from application use cases in the use case model. A security failure-tolerant use case is extended from an application use case at a security point. The Internet banking application is used to illustrate the proposed approach.
本文描述了一种对应用程序的安全威胁进行建模并从威胁中派生安全容错需求的方法。本文假设应用程序的牢不可破的核心安全服务,如身份验证、访问控制、密码系统或数字签名,在现实世界中一直是被破坏的。对应用程序需求的UML用例模型进行分析,以根据威胁点对系统的安全威胁进行建模,每个威胁都使用结构化模板进行描述。本文还从威胁点的威胁中派生出安全容错需求,并且通过安全容错用例与用例模型中的应用程序用例分开来建模需求。安全容错用例是从安全性点的应用程序用例扩展而来的。以网上银行应用程序为例说明了所提出的方法。
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引用次数: 2
期刊
2013 International Conference on Social Computing
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