Advances in Social Computing and Digital Education 7th International Workshop on Collaborative Agents Research and Development, CARE 2016, Singapore, May 9, 2016 and Second International Workshop on Social Computing in Digital Education, SocialEdu 2016, Zagreb, Croatia, June 6, 2016, Revised Selected Papers - Koch, Fernando; Koster, Andrew; Primo, Tiago; Guttmann, Christian (Springer International Publishing : Imprint: Springer, 2016)