Online multiplayer games are a popular form of social interaction, used by hundreds of millions of individuals. However, little is known about the social networks within these online games, or how they evolve over time. Understanding human social dynamics within massive online games can shed new light on social interactions in general and inform the development of more engaging systems. Here, w...

BACKGROUND Online social networks present wide-reaching and flexible platforms through which to deliver health interventions to targeted populations. This study used a social marketing approach to explore teenage girls' perceptions of physical activity and the potential use of online social networks to receive a physical activity intervention. METHODS Six focus groups were conducted with 19 A...

With the proliferation of the Internet, different online representations of social networks emerged, so-called online social networks (OSN), which allow for reflecting and building durable social networks over large distances. Unlike relationships in the physical world, OSN do not require a user to keep a connection alive by communicating at least sporadically. Instead, they foster the passive ...

With hundreds of millions of users worldwide, social networks provide incredible opportunities for social connection, learning, political and social change, and individual entertainment and enhancement in a wide variety of forms. In light of these notable outcomes, understanding information diffusion over online social networks is a critical research goal. Because many social interactions curre...

Social Network Analysis (SNA) tries to understand and exploit the key features of social networks in order to manage their life cycle and predict their evolution. Increasingly popular web 2.0 sites are forming huge social network. Classical methods from social network analysis (SNA) have been applied to such online networks. In this paper, we propose leveraging semantic web technologies to merg...

Social networks provide a powerful abstraction of the structure and dynamics of diverse kinds of people or people-to-technology interaction. The increasing achievement of the Web has led people to exploit collaborative technologies in order to encourage partnerships among different groups. The problem of tracking community in social networks inferred from online interactions by tracking evoluti...

Terrorist Activities worldwide has approached the evolution of various high-ended methodologies for analyzing terrorist groups and networks. Existing research found that Social Network Analysis (SNA) is one of the most effective and predictive method for countering terrorism in social networks. The study reviewed various SNA measures for predicting the key players/ main actors of terrorist netw...

Online Social Networks (OSNs) have become an important part of daily digital interactions for more than half a billion users around the world. Unconstrained by physical spaces, OSNs offer to web users new interesting means to communicate, interact, and socialize. While these networks make frequent data sharing and inter-user communications instantly possible, privacy-related issues are their ob...

Introduction Online social networks, also known as Social Network Sites (SNS) are web-based services allowing users to communicate with each other whether for personal or professional usage. Boyd and Ellison have defined SNS in their paper as “Web Based Services that allow individuals to (1) construct a public or semi-public profile within a bounded system (2) to articulate a list of other user...