Designing Social Media -- Utilizing Virtual Worlds for Personalized Search: Developing the PAsSIVE Framework -- Enabling Continuous Emotional Status Display in Mobile Text Chat -- 3D Virtual Worlds: An Ethnography of Key Artifacts and Processes -- Text-Mining of Hand-Over Notes for Care-Workers in Real Operation: Toward an Employee-Driven Innovation -- Talking Circles: Spiritual Aid for Teenagers Through Social Media -- Social Media Participation: A Narrative Way to Help Urban Planners -- Using Information Visualization Techniques to Improve the Perception of the Organizations' Image on Social Networks -- Designing a Social Mobile Platform for Diabetes Self-management: A Theory-Driven Perspective -- Providing ICT Support to Promote Communities' Emotional Balance -- User Modeling on Social Media for Art Museums and Galleries -- Social Media and Higher Education: A Literature Review -- Social Network Analysis -- An Analytic Study on Private SNS for Bonding Social Networking -- Simulation-Based Prediction and Analysis of Collective Emotional States -- Analysing Yammer Usage Pattern in the Context of Social Collaborative Activity Performance by Knowledge Workers -- Ensemble Selection for Community Detection in Complex Networks -- Analysis of Online Social Networks Posts to Investigate Suspects Using SEMCON -- Language-Independent Sentiment Analysis with Surrounding Context Extension -- Hashtag Popularity on Twitter: Analyzing Co-occurrence of Multiple Hashtags -- Individual and Group Behaviour in Social Media It's Not About the Risks, I'm just Used to Doing It: Disclosure of Personal Information on Facebook Among Adolescent Dutch Users -- Interaction Study of Shuriken: User Grouping and Data Transfer Based on Inter-device Relative Positioning -- Are Social Media Useful for Managing Reputation Online?: Comparing User Interactions Online with Reputation Indicators -- Investigating Usability and User Experience from the User Postings in Social Systems -- A Computational Study of How and Why reddit.com was an Effective Platform in the Campaign Against SOPA -- Inter-Social-Networking: Accounting for Multiple Identities -- Identifying Collaboration Strategies in Scientific Collaboration Networks.

This book constitutes the refereed proceedings of the 7th International Conference on Social Computing and Social Media, SCSM 2015, held as part of the 17th International Conference on Human-Computer Interaction, HCII 2015, held in Los Angeles, CA, USA, in August 2015. The total of 1462 papers and 246 poster papers presented at the HCII 2015 conferences was carefully reviewed and selected from 4843 submissions. These papers address the latest research and development efforts and highlight the human aspects of design and use of computing systems. The papers accepted for presentation thoroughly cover the entire field of human-computer interaction, addressing major advances in knowledge and effective use of computers in a variety of application areas. The 25 contributions included in the SCSM 2015 proceedings were organized in the following topical sections: designing social media; social network analysis; and individual and group behaviour in social media.