ACM Multimedia 2013 Call for Panel Proposals (http://acmmm13.org/submissions/call-for-panel-proposals/) The 21st ACM International Conference on Multimedia, October 21-25, 2013 Barcelona, Catalunya, Spain. ::Overview: ACM Multimedia 2013 invites proposals for panel sessions on timely and potentially controversial issues in all areas of multimedia: content analysis, systems, emerging applications, industry trends, technical breakthroughs, user needs, and social aspects. ::Submission Guideline: The submission should include the title of the panel, a short statement on its importance, relevance, and the potential issues of controversy, a tentative list of questions that will be posed to the panelists, a list of participants along with their affiliations, and a short bio of each participant. Panel proposals should be submitted electronically to the panel chairs. Short panel summaries of up to two pages will appear in the conference proceedings. ::Important Dates: Panel Proposals Submission Deadline: April 8, 2013 Notification of Acceptance: June 25, 2013 ::Contact: For any questions please email the Panel Chairs: Yong Rui (Microsoft Research, China): yongrui -at- microsoft.com Winston Hsu (National Taiwan University, Taiwan): whsu -at- ntu.edu.tw Michael Lew (University of Leiden, The Netherlands): mlew -at- liacs.nl