Proceedings of the second ACM conference on Online social networks

Welcome to the second edition of ACM Conference on Online Social Networks (COSN) in Dublin, Ireland. The second conference builds upon the success of the first COSN last year in providing a premier publication venue that features high quality research across multiple disciplines focused around the study of OSNs. The 25 papers that will be presented over the next two days represent some of the best research covering a wide variety of topics related to OSNs ranging from privacy and anonymity to social advertising and commerce, from detecting social communities to understanding diffusion of information and influence within them, and from proposing efficient and scalable network algorithms to large-scale empirical studies of user opinions in social networks. We solicited full papers (up to 12 pages) describing original research in detail and short papers (6 pages) conveying promising work and high-level vision. We received 87 submissions from over 20 countries, of which 65 were full papers and 22 were short papers. The final program includes 20 full papers and 5 short papers. The PC consisted of 24 members (including the two of us). In addition, we sought and received additional reviews for some papers from over 20 external reviewers. On average, every PC member reviewed around 12 papers and read a few more. Every submission received at least 3 reviews. Reviewing was single blind. The reviewers knew who the authors were, but the authors will not know who the reviewers are. We were careful to ensure that reviewers did not review papers with which they were conflicted. The reviewing process included extensive on-line discussions followed by a day long face-to-face PC meeting. The PC met in Stanford University on July 25th. The face-to-face PC meeting was beneficial as it brought various representatives of the OSN community together, some of whom were meeting others for the first time.