Christopher Ringhofer, M.Sc.

Short CV

Christopher Ringhofer, M.Sc., works since April 2020 as a researcher at the Embedded Systems department of the University Duisburg-Essen. He received his Bachelors Degree for Applied Informatics with a focus on engineering informatics in 2017 at the University Duisburg-Essen. Afterwards he worked three years as a software engineer in a company with a focus on the Internet of Things. He received his Master's degree in 2020. In his Master thesis he worked on signal processing of ECG data and its analysis with deep neural networks. He then worked on two research projects funded by the German Federal Ministry of Education and Research: "KI-Sprung: LUTNet" and "KI-LiveS".

Research

My current work is on automated search of efficient neural network architectures for signal processing on embedded devices. I am developing a system that uses neural architecture search to construct latency-optimized networks for signal processing of audio data. I use embedded FPGAs as the target platform for this. My current use case is digital audio effects, e.g. for studio and live applications.

M. Sc. Christopher Ringhofer

Informatik / AI

Address
Bismarckstr. 90 (BC)
47057 Duisburg
Room
BC 108
Phone
+49 203 379 1986
Fax
+49 203 379 5220
E-Mail
christopher.ringhofer@uni-due.de

Functions

  • Wissenschaftliche/r Mitarbeiter/in, Intelligente Eingebettete Systeme

The following publications are listed in the online university bibliography of the University of Duisburg-Essen. Further information may also be found on the person's personal web pages.

    Journal articles

  • Cichiwskyj, Christopher; Schmeißer, Stephan; Qian, Chao; Einhaus, Lukas; Ringhofer, Christopher; Schiele, Gregor
    Elastic AI : System support for adaptive machine learning in pervasive computing systems
    In: CCF Transactions on Pervasive Computing and Interaction Vol. 3 (2021) Nr. 3, pp. 300 - 328
    Online Full Text: dx.doi.org/ (Open Access)

    • Book articles / Proceedings papers

  • Ringhofer, Christopher; Gnoss, Alexa; Schiele, Gregor
    Balancing Error and Latency of Black-Box Models for Audio Effects Using Hardware-Aware Neural Architecture Search
    In: Proceedings of the International Conference on Digital Audio Effects, DAFx / International Conference on Digital Audio Effects, DAFx, 3-7 September 2024, Guilford, UK 2024, pp. 65 - 72
  • Einhaus, Lukas; Qian, Chao; Ringhofer, Christopher; Schiele, Gregor
    In-Situ Artificial Intelligence for Self-∗ Devices : The Elastic AI Ecosystem (Tutorial)
    In: 2nd IEEE International Conference on Autonomic Computing and Self-Organizing Systems Companion, ACSOS-C 2021: Proceedings / 2nd IEEE International Conference on Autonomic Computing and Self-Organizing Systems Companion, ACSOS-C 2021, Virtual, Washington, 27 September - 1 October 2021 2021, pp. 320 - 321
    Online Full Text: dx.doi.org/
  • Einhaus, Lukas; Qian, Chao; Ringhofer, Christopher; Schiele, Gregor
    Towards Precomputed 1D-Convolutional Layers for Embedded FPGAs
    In: Machine Learning and Principles and Practice of Knowledge Discovery in Databases: Proceedings, Part I / International Workshops of ECML PKDD 2021, Virtual Event, September 13-17, 2021 / Kamp, Michael; Koprinska, Irena; Bibal, Adrien; Bouadi, Tassadit; Frénay, Benoît; Galárraga, Luis; Oramas, José.; Adilova, Linara; Krishnamurthy, Yamuna; Kang, Bo; Largeron, Christine; Lijffijt, Jefrey; Viard, Tiphaine; Welke, Pascal; Ruocco, Massimiliano; Aune, Erlend; Gallicchio, Claudio; Schiele, Gregor; Pernkopf, Franz; Blott, Michaela; Fröning, Holger; Schindler, Günther; Guidotti, Riccardo; Monreale, Anna; Rinzivillo, Salvatore; Biecek, Przemyslaw; Ntoutsi, Eirini; Pechenizkiy, Mykola; Rosenhahn, Bodo; Buckley, Christopher; Cialfi, Daniela; Lanillos, Pablo; Ramstead, Maxwell; Verbelen, Tim; Ferreira, Pedro M.; Andresini, Giuseppina; Malerba, Donato; Medeiros, Ibéria; Fournier-Viger, Philippe; Nawaz, M. Saqib; Ventura, Sebastian; Sun, Meng; Zhou, Min; Bitetta, Valerio; Bordino, Ilaria; Ferretti, Andrea; Gullo, Francesco; Ponti, Giovanni; Severini, Lorenzo; Ribeiro, Rita; Gama, João; Gavaldà, Ricard; Cooper, Lee; Ghazaleh, Naghmeh; Richiardi, Jonas; Roqueiro, Damian; Saldana Miranda, Diego; Sechidis, Konstantinos; Graça, Guilherme (Eds.) 2021, pp. 327 - 338
    Online Full Text: dx.doi.org/

    • Posters / Proceedings posters

  • Helms, Domenik; Kettner, Mark; Perjikolaei, Behnam Razi; Einhaus, Lukas; Ringhofer, Christopher; Qian, Chao; Schiele, Gregor;
    FPGA based low latency, low power stream processing AI
    2nd European Workshop on On-Board Data Processing (OBDP2021), 14-17 June 2021, Online, (Session 3),
    (2021)
    Online Full Text: dx.doi.org/ (Open Access)