Topics include, but are not limited to:

• OSNEM platforms, protocols and applications;
• Decentralized, mobile and location-based OSNEM;
• Trust, reputation, privacy and security in OSNEM;
• Dynamics of trends, information and opinion diffusion in OSNEM;
• Recommendations and advertising in OSNEM;
• Measurement, analysis and modeling of popular online social networks (Facebook, Twitter, Instagram, Flickr, etc.);
• Data mining, and machine learning in OSNEM systems;
• Social media analysis and social analytics;
• Information extraction and search in OSNEM;
• Complex-network analysis of OSNEM;
• Measurement, analysis and modeling of social behavior through OSNEM data;
• Analysis of the use of OSNEM in the urban context;
• Crowdsourcing and online social networks;
• Multidisciplinary applications of OSNEM (economics, medicine, society, politics, homeland security, etc.).