Monday, August 18, 2014

Over-the-Top Content Delivery: State of the Art and Challenges Ahead

Tutorial at ACM Multimedia 2014
November 3-7, 2014
Orlando, Florida, USA

Abstract: In this tutorial we present state of the art and challenges ahead in over-the-top content delivery. It particular, the goal of this tutorial is to provide an overview of adaptive media delivery, specifically in the context of HTTP adaptive streaming (HAS) including the recently ratified MPEG-DASH standard. The main focus of the tutorial will be on the common problems in HAS deployments such as client design, QoE optimization, multi-screen and hybrid delivery scenarios, and synchronization issues. For each problem, we will examine proposed solutions along with their pros and cons. In the last part of the tutorial, we will look into the open issues and review the work-in-progress and future research directions.


Biography of Presenters
Christian Timmerer is an Associate Professor at the Institute of Information Technology (ITEC), Multimedia Communication Group (MMC), Alpen-Adria-Universität Klagenfurt, Austria. His research interests include immersive multimedia communication, streaming, adaptation, and Quality of Experience (QoE). He was the general chair of QoMEX’13, WIAMIS’08, AVSTP2P’10 (co-located with ACMMM’10), WoMAN’11 (co-located with ICME’11), and TPC co-chair of QoMEX’12. He has participated in several EC-funded projects, notably DANAE, ENTHRONE, P2P-Next, ALICANTE, SocialSensor, and ICoSOLE. He is an Associate Editor for IEEE Computer Science Computing Now, Area Editor for Elsevier Signal Processing: Image Communication, Review Board Member of IEEE MMTC, editor of ACM SIGMM Records, and member of ACM SIGMM Open Source Software Committee. He also participated in ISO/MPEG work for several years, notably in the area of MPEG-21, MPEG-M, MPEG-V, and DASH (incl. DASH Industry Forum). He received his PhD in 2006 from the Klagenfurt University. Follow him on and subscribe to his blog

Ali C. Begen is with the Video and Content Platforms Research and Advanced Development Group at Cisco. His interests include networked entertainment, Internet multimedia, transport protocols and content delivery. Ali is currently working on architectures and protocols for next-generation video transport and distribution over IP networks. He is an active contributor in the IETF and MPEG, and has given a number of keynotes, tutorials and guest lectures in these areas. Ali holds a Ph.D. degree in electrical and computer engineering from Georgia Tech. He received the Best Student-paper Award at IEEE ICIP 2003, the Most-cited Paper Award from Elsevier Signal Processing: Image Communication in 2008, and the Best-paper Award at Packet Video Workshop 2012. Ali has been an editor for the Consumer Communications and Networking series in the IEEE Communications Magazine since 2011 and an associate editor for the IEEE Transactions on Multimedia since 2013. He served as a general co-chair for ACM Multimedia Systems 2011 and Packet Video Workshop 2013. He is a senior member of the IEEE and a senior member of the ACM. Further information on Ali’s projects, publications, presentations and professional activities can be found at
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