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Daniele Lorenzi

+43 676 404 5216
Universitätsstraße 65–67, 9020 Klagenfurt am Wörthersee, Austria
daniele(dot)lorenzi(at)aau(dot)at

I am a postdoctoral researcher at the Department of Information Technology, Alpen-Adria-Universität, Klagenfurt, Austria, where I received my Ph.D. in Computer Science. I currently focus on the adaptive-bitrate (ABR) strategies of the player component in video streaming in the Christian-Doppler Laboratory ATHENA, led by Prof. Christian Timmerer. I received my master degree in ICT Engineering and my bachelor degree in Information Engineering from the Department of Information Engineering, University of Padua, Italy. My research interests encompass Video Streaming, Multimedia Networking, Machine and Deep Learning, QoS and QoE Improvement.


News


Experience

Alpen-Adria-Universität Klagenfurt

Lecturer
Department of Information Technology (ITEC)
January 2025 - Present

Alpen-Adria-Universität Klagenfurt

Ph.D. Candidate
ATHENA, Department of Information Technology (ITEC)
January 2022 - Present

Journal Papers

MEDUSA: A Dynamic Codec Switching Approach in HTTP Adaptive Streaming

ACM Transactions on Multimedia Computing Communications and Applications (TOMM)
Lorenzi, D., Tashtarian, F., Hellwagner, H., Timmerer. C.
January 2024

DoFP+: An HTTP/3-based Adaptive Bitrate Approach Using Retransmission Techniques

IEEE Access
Nguyen, M., Lorenzi, D., Tashtarian, F., Hellwagner, H., Timmerer, C.
January 2022

Conference Papers

GenStream: Semantic Streaming Framework for Generative Reconstruction of Human-centric Media

The 33rd ACM International Conference on Multimedia (MM'25)
Dublin, Ireland
Artioli, E., Lorenzi, D., Vats, S., Tashtarian, F., Timmerer, C.
October 27-31, 2025

Receiving Kernel-Level Insights via eBPF: Can ABR Algorithms Adapt Smarter?

Würzburg Workshop on Next-Generation Communication Networks (WueWoWAS'25)
Würzburg, Germany
Ghasemi, M., Lorenzi, D., Dolati, M., Tashtarian, F., Gorinsky, S., Timmerer, C.
October 6-8, 2025

Real-Time AI-Driven Avatar Generation for Sign Language in HTTP Adaptive Streaming

The 3rd ACM SIGCOMM Workshop on Emerging Multimedia Systems (EMS'25)
Coimbra, Portugal
Lorenzi, D., Artioli, E., Tashtarian, F., Timmerer, C.
September 8, 2025

ALPHAS: Adaptive Bitrate Ladder Optimization for Multi-Live Video Streaming

IEEE International Conference on Computer Communications (INFOCOM'25)
London, United Kingdom
Tashtarian, F., Dolati, M., Lorenzi, D., Mozhganfar, M., Gorinsky, S., Khonsari, A., Timmerer, C., Hellwagner, H.
May 19-22, 2025

Generative AI for Realistic Voice Dubbing Across Languages

The 4th Mile-High Video Conference (MHV’25)
Marriott DTC, Denver
Artioli E., Lorenzi, D., Tashtarian, F., Timmerer, C.
February 18–20, 2025

Adaptive Quality and Energy Enhancement in Video Streaming with RecABR

The 4th Mile-High Video Conference (MHV’25)
Marriott DTC, Denver
Lorenzi, D., Tashtarian, F., Timmerer, C.
February 18–20, 2025

COCONUT: Content Consumption Energy Measurement Dataset for Adaptive Video Streaming

The 15th ACM Multimedia Systems Conference (MMSys'24)
Bari, Italy
Tashtarian, F., Lorenzi, D., Amirpour, H., Afzal, S., Timmerer, C.
April 15-18, 2024

E-WISH: An Energy-aware ABR Algorithm For Green HTTP Adaptive Video Streaming

The International Conference on Mile-High Video (MHV)
Marriott DTC, Denver, USA
Lorenzi, D., Nguyen, M., Tashtarian, F., Timmerer, C.
February 11-14, 2024

Community-Based QoE Enhancement for User-Generated Content Live Streaming

The 13th International Conference on Computer and Knowledge Engineering (ICCKE)
Mashad, Iran
Saeedinia, R., Fatemi, S.O., Lorenzi, D., Tashtarian, F., Timmerer, C.
November 1-2, 2023

QoE- and Energy-aware Content Consumption For HTTP Adaptive Streaming

The 14th ACM Multimedia Systems Conference (MMSys'24) - Doctoral Symposium
Vancouver, Canada
Lorenzi, D.
June 7-10, 2023

MCOM-Live: A Multi-Codec Optimization Model at the Edge for Live Streaming

The 29th International Conference on MultiMedia Modeling (MMM)
Bergen, Norway
Lorenzi, D., Tashtarian, F., Amirpour, H., Timmerer, C., Hellwagner, H.
January 9-12, 2023

Days of Future Past: An Optimization-based Adaptive Bitrate Algorithm over HTTP/3

The 3rd ACM CoNEXT Workshop on the Evolution, Performance, and Interoperability of QUIC (EPIQ)
Munich, Germany
Lorenzi, D., Nguyen, M., Tashtarian, F., Timmerer, C., Hellwagner, H., Milani, S.
December 7-10, 2021

Teaching

Alpen-Adria-Universität Klagenfurt

Lecturer
Undergraduate student course on "Operating Systems and Computer Networks"
Department of Information Technology (ITEC), Alpen-Adria-Universität Klagenfurt
March 2025 - Present

Academic Services

  • Member of Technical Program Committee (TPC):
    • ACM Mile-High Video (MHV), 2025
    • IEEE ICME Workshop on Surpassing Latency Limits in Adaptive Live Video Streaming (LIVES), 2025
  • Peer-reviewer:
    • International Conference on Visual Communications and Image Processing (VCIP)
    • ACM Multimedia (MM)
    • ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)
    • IEEE Transactions on Mobile Computing (TMC)
    • ACM Mile-High Video (MHV)
    • IEEE ICME Workshop on Surpassing Latency Limits in Adaptive Live Video Streaming (LIVES)