Bidding strategy in online auctions, as a sort of strategic behavior, can help bidders to get what they want more efficiently and effectively. It receives much attention in many researches. However, the determinants of bidding strategy adoption still remain unclear. In this study, we investigate the role of social network in bidding strategy adoption using real transaction data from an online P...

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...

The present study examines how the use of social network sites (SNS) increases the potential of experiencing psychological, reputational and physical vulnerability online. From our theoretical perspective, concerns over the use of social network sites and online vulnerability stem from the ease with which users can amass large and diverse sets of online social connections and the associated mai...

This paper discusses the design and evaluation of an online social network used within twenty-two established after school programs across three major urban areas in the Northeastern United States. The overall goal of this initiative is to empower students in grades K-8 to prevent obesity through healthy eating and exercise. The online social network was designed to support communication betwee...

This paper contributes to the ongoing stream of research correlating social network structure with individual and organizational performance. While teaching a course on optimizing online communication behavior and social network analysis, we collected preliminary data on the relationship between dynamic social network structures and individual and team performance. Students from Helsinki Univer...

The most emerging communication medium for the last decade of years is Online Social Networks (OSNs). Online Social Network makes the communication quicker and cheaper. Facebook, Twitter, Google Plus, MySpace, Orkut, etc are the various existing online social networks. Among all the online social networks very few could turn the attention of the people towards them. However, all these social ne...

We consider the specific problem of how users can securely authenticate online identities (e.g., associate a Facebook ID with its owner). Based on prior social science research demonstrating that the social tie strength is a useful indicator of trust in many real-world relationships, we explore how tie strength can be visualized using welldefined and measurable parameters. We then apply the vis...

Open Network Learning Environments (ONLE) are online networks that afford learners the opportunity to participate in creative content endeavors, personalized identity projections, networked mechanism management, and effective collaborative community integration by applying Web 2.0 tools in open environments. It supports social interaction by integrating User-Generated Content, Participatory Web...