The increasingly booming online social networks promote the development of online health forum. People tend to solve kinds of health issues through the Internet. However, it is still unclear what the main characteristics of friendship networks are and how the users’ attribution affect the friendship ties establishment in the online health forum. This study uses the Exponential Random Graph Mode...

this commentary explores the implications of increased social media marketing by drug manufacturers, based on findings in hyosun kim’s article of the major themes in recent food and drug administration (fda) warning letters and notices of violation regarding online direct-to-consumer promotions of pharmaceuticals. kim’s rigorous analysis of fda letters over a 10-year span highlights a relative ...

In the past, most researchers focused on the efficacy of tie-strength in various applications for both online and offline social networks. However, how tie-strength can help in the analysis of online social networks was a commonly neglected issue. The massive size and recording properties of online social networks offer the possibility to measure tie-strength objectively. In this study, we exam...

Title of dissertation: PREDICTION, EVOLUTION AND PRIVACY IN SOCIAL AND AFFILIATION NETWORKS Elena Zheleva, Doctor of Philosophy, 2011 Dissertation directed by: Professor Lise Getoor Department of Computer Science In the last few years, there has been a growing interest in studying online social and affiliation networks, leading to a new category of inference problems that consider the actor cha...

Scholars participate in online social networks for professional purposes. In such networks, learning takes the form of participation and identity formation through engagement in and contribution to networked practices. While current literature describes the possible benefits of online participation, empirical research on scholars’ use of online social networks in the educational technology lite...

Limitations in data collection have long been an obstacle in research on friendship networks. Most earlier studies use either a sample of ego-networks, or complete network data on a relatively small group (e.g., a single organization). The rise of online social networking services such as Friendster and Facebook, however, provides researchers with opportunities to study friendship networks on a...

a r t i c l e i n f o Keywords: We-intention Social influence Social identity Subjective norm Group norm Online social networks IS adoption IS continuance Online social networks (Facebook, MySpace, LinkedIn and the like) have become truly significant new phenomena in human communication and interaction patterns and may have a profound impact in the way people communicate and connect with each o...

Online social networks such as Facebook, Twitter and Gowalla allow people to communicate and interact across borders. In past years online social networks have become increasingly important for studying the behavior of individuals, group formation, and the emergence of online societies. Here we focus on the characterization of the average growth of online social networks and try to understand w...