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Title -- Preface -- Organization -- Table of Contents -- Consensus under Constraints: Modeling the Great English Vowel Shift -- Introduction -- The Great Vowel Shift -- A Model of Population Wide Language Change -- Simulation Results -- Discussion -- Conclusions and Future Work -- References -- A Study of Informational Support Exchanges in MedHelp Alcoholism Community -- Introduction -- Methods -- Results -- Discussion -- Conclusion -- References -- Real-World Behavior Analysis through a Social Media Lens -- Introduction -- Methodology -- Observations -- Discussion -- Conclusions and Future Work -- References -- The Mythology of Game Theory -- The Mythology of Non-cooperative Games -- Experimental Design -- Inconsistent Behavior within and Across Games -- Are Beliefs and Behavior Consistent? -- Discussion -- References -- Crowdsourced Cyber Defense: Lessons from a Large-Scale, Game-Based Approach to Threat Identification on a Live Network -- Introduction -- FLUXHUNTER: A Game for Detecting Fast-Flux Domains -- Results -- Data Collection -- Fast-Flux Detection Performance: Individuals -- Fast-Flux Detection Performance: The Crowd -- Conclusions and Future Work -- References -- How Many Makes a Crowd? On the Evolution of Learning as a Factor of Community Coverage -- Introduction -- Scientific Background -- Mobile Phones as Social Sensors -- Individual Based Data Collection -- Learning and Prediction of Social and Individual Information -- Analysis and Results -- Conclusion -- References -- Cultural Consensus Theory: Aggregating Signed Graphs under a Balance Constraint -- Introduction -- A CCT Model for Balanced Signed Graphs -- Bayesian Inference for the Model -- Performance of the Model -- Simulated Data -- Real Data -- Conclusion -- References.

Authored by military and intelligence professionals, this book introduces the new and emerging topic of social network analysis. Focusing on models and methods for the analysis of organizational risk, the book provides easily accessible yet comprehensive coverage of networks basics, basic centrality measures, social links, subgroup analysis, data sources, and more. Examples of mathematical calculations and formulas for social network measures are also included.

Virtual social networks have brought about the possibility for open and plural debate, where all those with the necessary literacy skills and means are able to participate in the creation and dissemination of information. By pressing political agents and determining the "agenda" of a lot of the media, users demonstrate that we stand at an ideal platform for creating both real social movements and more or less fleeting events, as manifestos or virtual campaigns. Nonetheless, in order to understand the role of virtual social networks in today's world, we need to answer some prior questions. Are we facing a new communication model, whereby the product of "disinterested" interactivity creates an aura of confidence in disseminated information, often quite higher that that seen in the "old media"? Will that interactivity be a chance to fight-off citizens' growing detachment with regard to the "res publica"? Will we find in citizen-made journalism, transmitted through virtual social networks, the consecration of a true fourth power? On the other hand, can we call the distinct collective movements we have seen emerging true "social movements"? The present article aims to examine this and other issues that come to the fore in the intricate social world of cyberspace.

"Social networks are critical for the creation and consumption of music. An edited collection, Social Networks and Music Worlds introduces students and scholars of music in society through the core concepts and tools of social network analysis. The collection showcases their use by sociologists, historians and musicologists examining, in turn, the punk, jazz, folk, classical music, Riot Grrrl, indie acoustic, R&B and calypso scenes. An overarching introduction is provided by leading network scholar and cultural sociologist Nick Crossley. The collection builds upon insights from canonic texts in the sociology of music, with the crucial innovation of examining musical network interaction via formal methods. With network analysis in the arts and humanities at an emergent stage, Social Networks and Music Worlds highlights its possibilities for non-scientists. Contributions hail from leading and emerging scholars who present social network graphs to represent different music worlds, locating individuals, resources and styles within them. The collection sits at the nexus of sociological, musicological and cultural studies traditions. Its range should ensure a large scholarly readership"--Provided by publisher

The goal of this study is to examine—theoretically and empirically—the implications of unrestricted, computer-mediated social interactions for civil society. Discussions of 207,419 participants in 35 newsgroups over 6 years are examined. Patterns of participation and attention attraction follow a power–law degree distribution—a highly skewed distribution—as is expected in large networks. Furthermore, analysis shows that these patterns are dependent on group size: The larger a group, the more skewed is its distribution. These patterns indicate hierarchical social structures that limit equality among participants and well-informed citizenry. The growth of discussions, which can empower civil society, is in fact making it more hierarchical.

L'article propose un modèle théorique traduit dans une simulation informatique de la manière dont les acteurs communiquent au sein de forums de discussions en ligne. L'analyse du modèle montre que deux mécanismes simples peuvent rendre compte de la complexité des réseaux des échanges en ligne : d'une part, la tendance à parler avec des utilisateurs connus et, d'autre part, la tendance à se lancer dans des échanges de questions/réponses. Ces deux mécanismes permettent de reproduire des discussions longues ainsi que des interactions complexes entre des utilisateurs ayant des niveaux différents d'expertise. En particulier, quand les résultats des simulations sont comparés à des données empiriques issues de trois forums en ligne différents, l'analyse montre que le modèle est capable de distinguer quand un noyau d'utilisateurs interagissant apparaît fréquemment. Puisque l'émergence de tels noyaux constitue la première étape dans la construction du sentiment d'appartenance à une communauté, la capacité à modéliser l'émergence de ces noyaux intéresse plusieurs contextes qui vont du policy-making à l'apprentissage en ligne au marketing social.

Abstract: Two critiques of mass media in the twentieth century gestured at its effects on the capacity of patience. Neil Postman's Amusing Ourselves to Death and Daniel Boorstin's The Image examine how the media changed our imagining of the world, the scope of its relevance for us, and our ways of being in it. This article follows their lead by inquiring how being online further undermines the capacity for patience, manifested most clearly in the self-generating rage characteristic of social networks' discourse. It refers this effect to three basic elements of the online world: the ubiquitous timeline format, the hybrid creature of written speech created by it, and digital objects that adapt themselves too closely to our needs, imaginings, and desires. All three foster a disruption of distances, where the remote and unfamiliar are experienced as unbearably close, a blurring of distinctions between inner life and external reality. A world composed of digital objects has lost what Hannah Arendt described as its power to "relate and separate people at the same time."

Für den Umgang mit Online-Medien, insbesondere Social Media, im deutschsprachigen Kulturbetrieb finden sich bislang nur zurückhaltende, fragmentarische Begründungsversuche, die bei näherer Betrachtung theoretische Inkonsequenzen aufweisen. Diese interdisz