Modeling Analogies for Human-Centered Information Systems -- Resilience of Social Networks under Different Attack Strategies -- Modelling and Detecting User Lifecycle Periods in Online Community Platforms -- Metro: Exploring Participation in Public Events -- An Analysis of Human-Generated Friendship Recommendations -- A Divide-and-Conquer Approach for Crowdsourced Data Enumeration.

This book constitutes the proceedings of the 5th International Conference on Social Informatics, SocInfo 2013, held in Kyoto, Japan, in November 2013. The 23 full papers, 15 short papers and three poster papers included in this volume were carefully reviewed and selected from 103 submissions. The papers present original research work on studying the interplay between socially-centric platforms and social phenomena.