GMSys 2023: First International ACM Green Multimedia Systems Workshop

Link to GMSys 2024: Second International ACM Green Multimedia Systems Workshop

7 – 10 June 2023, Vancouver, Canada.

GMSys’23 Program

The workshop will take place on Saturday, 10 Jun, 2023, between 3:30 and 5:30 pm. Each  presentation duration is 10 minutes followed by a 5-minute Q&A.

3:30 – 3:45, Technical Session

VE-Match: Video Encoding Matching-based Model for Cloud and Edge Computing Instances
Samira Afzal, Narges Mehran (Alpen-Adria-Universität Klagenfurt, Austria); Sandro Linder (Bitmovin, Klagenfurt, Austria); Christian Timmerer, Radu Prodan (Alpen-Adria-Universität Klagenfurt, Austria)

3:45 – 4:00, Technical Session

Studying Green Video Distribution as a Whole
Burak Kara, Gwendal Simon (Synamedia); Bruno Tuffin (Inria); Jerome Vieron (Synamedia); Ali C. Begen (Ozyegin University)

4:00 – 4:15, Technical Session

End-to-end Optimizations for Green Streaming
Robert Seeliger, Stefan Pham, Stefan Arbanowski (Fraunhofer FOKUS)

4:15 – 4:30, Technical Session

Audience Aware Streaming: New Dynamics in OTT distribution
Jan Outters, Mickael Raulet (Ateme S.A.)

4:30 – 4:45, Technical Session

Green Video Complexity Analysis for Efficient Encoding in Adaptive Video Streaming 
Vignesh V Menon (Alpen-Adria-Universität Klagenfurt); Christian Feldmann (Bitmovin); Klaus Schoeffmann (Alpen-Adria-Universität Klagenfurt); Mohammed Ghanbari (University of Essex); Christian Timmerer (Alpen-Adria Universität Klagenfurt)

4:45 – 5:00, Technical Session

Energy Efficiency Improvements in Software-Based Video Encoding
Jan De Cock (Synamedia)

5:00 – 5:15, Technical Session

Video Decoding Energy Reduction using Temporal-Domain Filtering
Christian Herglotz, Matthias Kränzler, Robert Ludwig, André Kaup (Friedrich-Alexander-Universität Erlangen-Nürnberg)

5:15 – 5:30, Technical Session

The analysis of DASH manifest optimizations
Yongjun Wu (Amazon)

Call For Submissions

The threat of climate change requires a drastic reduction of global greenhouse gas (GHG) emissions in several societal spheres. Thus, this also applies to reducing and rethinking energy consumption of digital technologies. Video streaming technology is responsible for more than half of digital technology’s global impact [ref]. There is rapid growth, also now with digital and remote work has become more mainstream, in the amount of video data volume, processing of video content, and streaming which affects the rise of energy consumption and its associated GHG emissions.

The processes from video encoding, transmission, decoding, and displaying on the end user’s screen require a non-negligible amount of electricity – it starts with computational resources for video frame processing (encoding, compression), transmission, and decoding (decompression, error correction, and compensation, etc.) and consumption (video effects, etc.). There is also significant growth in video resolutions and hence higher bitrates, and the fact that this content is ubiquitously accessible anytime and everywhere with mobile devices and through high internet speed (e.g., 5G). These factors altogether inevitably cause a higher consumption of computation, distribution, and transmission resources. Therefore, there is a need to explore methods to make video encoding, transmission, and decoding greener without compromising quality. Tackling the challenge of reducing resource consumption end-to-end also brings direct opportunities to reduce the overall energy consumption in the whole video processing chain. Such challenges are: Developing video compression methods to minimize the decoding energy on user devices, designing energy management strategies to improve energy performance on cloud servers, developing algorithms helping to improve video encoding and decoding energy efficiency optimizing their usage of the underlying platform, e.g., CPUs, select the most energy-efficient network channel for video streaming, approaches to lower data volumes produced by video content, Artificial Intelligence (AI) techniques leveraging to calculate expected encoding energy consumption.

The International Workshop on Green Multimedia Systems 2023 aims to bring together experts and researchers to present and discuss recent developments and challenges for energy reduction in multimedia systems. This workshop focuses on innovations, concepts, and energy-efficient solutions from video generation to processing, delivery, and further usage.  Please see the Call for Paper.

  • Content Generation, Processing & Provisioning
    • Creation and production tool designs that promote and enable energy efficiency
    • Energy usage analysis for video encoding in the cloud
    • Tradeoffs between QoE-optimized video encoding and energy consumption
    • Energy-efficient management of cloud computing systems
    • Resource and energy-efficient job scheduling in cloud computing
    • Optimized energy models and resource provisioning for video encoding
    • Energy-efficient video encoding across the edge-cloud continuum 
    • AI-based resource allocation for climate-friendly video encoding
    • Leveraging new cloud platform features (hardware) to improve video encoding energy efficiency
    • Energy efficiency gains in dedicated hardware units (e.g., CPU, GPU)  for video encoding
  • Video Delivery
    • Energy usage analysis for video streaming, routers, switches, and network channels
    • Design, analysis, and evaluation of adaptive bitrate (ABR) algorithms for Green video streaming
    • Green video streaming over 5G and 6G networks
    • Low-latency, quality, and energy-aware video streaming
    • AI and machine learning approaches for energy efficiency in video communication networks
    • Energy efficient approaches for video caching distribution at multiple locations, e.g., CDNs
    • Green and QoE-driven network management & monitoring, including application layer QoS
  • Video Consumption & QoE
    • Energy usage analysis for decoding and displaying video on user devices
    • High perceived video quality at low energy consumption 
    • Energy-efficient video decoding techniques
    • AI approaches for analyzing and influencing user behavior to optimize energy consumption
    • User engagement, QoE, and its relation to energy consumption
    • Understanding user behavior and habits, e.g., “willingness-to-greener-consumption”
    • Empowering users to utilize green multimedia services

Submission Guideline

    • Full/research papers: up to 6 pages + references
    • Short/industry position paper: 1-2 page(s) (+1 for references, if any)
    • Papers must include author names and affiliations for single-blind peer reviewing by the program committee,  using double column ACM style format
    • Submit your Full or Short Paper here

Important Dates

    • Full Paper Submission: March 10, 2023  (submit your paper here)
    • Short Paper Submission: March 10, 2023  March 31, 2023  (submit your paper here)
    • Notification: March 31, 2023,  April 14, 2023
    • Camera ready deadline: April 17, 2023, April 24, 2023

Organizing Committee


  • Samira Afzal, Post-Doctoral researcher, Alpen-Adria-Universität Klagenfurt, Austria
  • Simone Ferlin-Reiter, Senior performance engineer, Red Hat AB and Karlstad University, Sweden 
  • Tobias Hoßfeld, Full Professor, Chair of Communication Networks, University of  Würzburg, Germany
  • Christian Timmerer, Full Professor, Director Christian Doppler Lab ATHENA, Alpen-Adria-Universität Klagenfurt, Austria
  • Raimund Schatz, Austrian Institute of Technology, Austria

Technical Program Committee 

  • Ali C. Begen, Ozyegin University, Turkey
  • Abdelhak Bentaleb, Concordia University
  • Alexander Raake, Technische Universität Ilmenau, Germany
  • Christian TimmererAlpen-Adria-Universität Klagenfurt, Austria
  • Christian Herglotz, Friedrich-Alexander-Universität, Germany
  • Cormac Sreenan, University College Cork, Ireland
  • Franco Davoli, University of Genoa, Italy
  • Farzad Tashtarian, Alpen-Adria-Universität Klagenfurt, Austria
  • Hadi Amirpour, Alpen-Adria-Universität Klagenfurt, Austria
  • Hatem Abou-Zeid, University of Calgary, Canada
  • Hamed Zolghadri Jahromi, Netverge, Canada
  • Jiyan Wu, OmniVision Technologies Inc, Singapore
  • Katrien de Moor, Norwegian University of Science and Technology, Norway
  • Markus Fiedler, Blekinge Institute of Technology, Schweden
  • Michael Welzl, , University of Oslo, Norway
  • Mickaël Raulet, ATEME, France
  • Olivier Le Meur, InterDigital, France
  • Ozgu Alay, University of Oslo, Norway
  • Peter Počta, University of Zilina, Slovakia
  • Prashant Shenoy, University of Massachusetts, Amherst, USA
  • Radu Prodan, Alpen-Adria-Universität Klagenfurt, Austria
  • Raimund Schatz, Austrian Institute Of Technology, Austria
  • Samira Afzal, Alpen-Adria-Universität Klagenfurt, Austria
  • Simone Ferlin-Reiter,  Red Hat AB and Karlstad University, Sweden
  • Tobias Hoßfeld, University of  Würzburg, Germany
  • Thomas Zinner, Norwegian University of Science and Technology, Norway 
  • Tian Guo, Worcester Polytechnic Institute, USA
  • Werner Robitza, AVEQ, Austria
  • Zhi Li, Netflix, United States
  • Robert Seeliger, Fraunhofer FOKUS, Germany

Technical Sponsor