Multimedia conference and co-located workshops : MM'15 ; proceedings of the 2015 ACM Multimedia conference and co-located workshop ; ASM'15, AVEC'15, HCMC'15, CrowdMM'15, ImmersiveME'15, MMCommons'15, & SLAM'15, Brisbane, Australia, October 26-30, 2015 (ACM - Association for Computing Machinery, 2015)