The workshop is going to be located with the regular workshops at the main ACM Multimedia conference: room 607, Universitat Pompeu Fabra (UPF), Balmes St. Venue. For more information about the venue, please see:
http://acmmm13.org/travel-and-venue/venue/.

A detailed programme of the ACM Multimedia conference, including the location of all workshops, is available here:
http://acmmm13.org/program/program-at-a-glance/.