M.Sc. Joschua Conrad

Joschua Conrad received the B.Eng. degree at Baden-Wuerttemberg Cooperative State University (DHBW) Stuttgart in 2016. In his studies and work at Eisenmann SE in Böblingen and Stuttgart, he designed object-orientated software for applications with real-time requirements in automation. During his master studies, he worked at the Institute of Microelectronics at Ulm University and developed a high SNDR filter and a high SNDR oscillator using PCBs and developed software solutions for requirements engineering at Gigatronik GmbH in Ulm. He finished his master thesis in 2019 at the Institute of Microelectronics with the topic "Design of a Ring Amplifier based Sigma Delta Modulator".

He now works under the supervision of Prof. Dr.-Ing. Maurits Ortmanns in the field of "Machine Learning".


Student Theses

[mt] = Masterarbeit, [rp] = Bachelorarbeit

Publications

2025

12.
R. Asthana, J. Conrad, M. Ortmanns and V. Belagiannis, "Dextr: Zero-Shot Neural Architecture Search with Singular Value Decomposition and Extrinsic Curvature", Aug. 2025.
DOI:10.48550/arXiv.2508.12977
11.
J. Conrad, S. Wilhelmstätter, H. Mandry, P. Kässer, A. Abdelaal, R. Asthana, V. Belagiannis and M. Ortmanns, "PSumSim: A Simulator for Partial-Sum Quantization in Analog Matrix-Vector Multipliers", IEEE International Symposium on Circuits and Systems (ISCAS), London, United Kingdom, May 2025.
DOI:10.1109/ISCAS56072.2025.11043442
10.
J. Conrad, S. Wilhelmstätter, H. Mandry, P. Kässer, A. Abdelaal, R. Asthana, V. Belagiannis and M. Ortmanns, "PSumSim: A Simulator for Partial-Sum Quantization in Analog Matrix-Vector Multipliers", IEEE International Symposium on Circuits and Systems (ISCAS), London, United Kingdom, pp. 1-5, May 2025.
DOI:10.1109/ISCAS56072.2025.11043442

2024

9.
J. Conrad, S. Wilhelmstätter, R. Asthana, V. Belagiannis and M. Ortmanns, "Differentiable Cost Model for Neural-Network Accelerator Regarding Memory Hierarchy", IEEE Transactions on Circuits and Systems I: Regular Papers ( Early Access ), Oct. 2024.
DOI:10.1109/TCSI.2024.3476534
8.
J. Conrad, J. G. Kauffman, S. Wilhelmstätter, R. Asthana, V. Belagiannis and M. Ortmanns, "Confidence Estimation and Boosting for Dynamic-Comparator Transient-Noise Analysis", 22nd IEEE Interregional NEWCAS Conference (NEWCAS), Sep. 2024.
DOI:10.1109/NewCAS58973.2024.10666354
7.
S. Wilhelmstätter, J. Conrad, D. Upadhyaya, I. Polian and M. Ortmanns, "Enabling Power Side-Channel Attack Simulation on Mixed-Signal Neural Network Accelerators", IEEE International Conference on Omni-Layer Intelligent Systems (COINS), London, UK, Jul. 2024.
6.
P. Kässer, S. Kaltenstadler, J. Conrad, J. Wagner, O. Ismail and M. Ortmanns, "Stability Prediction of Δ∑ Modulators using Artificial Neural Networks", IEEE International Symposium on Circuits and Systems (ISCAS), Singapore, May 2024.
DOI:10.1109/ISCAS58744.2024.10557868
5.
J. Conrad, S. Wilhelmstätter, R. Asthana, V. Belagiannis and M. Ortmanns, "Too-Hot-to-Handle: Insights into Temperature and Noise Hyperparameters for Differentiable Neural-Architecture-Searches", 6th IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), Abu-Dhabi, UAE, Apr. 2024.
DOI:10.1109/AICAS59952.2024.10595971
4.
S. Wilhelmstätter, J. Conrad, D. Upadhyaya, I. Polian and M. Ortmanns, "Attacking a Joint Protection Scheme for Deep Neural Network Hardware Accelerators and Models", 6th IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS), Abu Dhabi, UAE, Apr. 2024.
DOI:10.1109/AICAS59952.2024.10595935
3.
R. Asthana, J. Conrad, Y. Dawoud, M. Ortmanns and V. Belagiannis, "Multi-conditioned Graph Diffusion for Neural Architecture Search", Transactions on Machine Learning Research, Mar. 2024. https://openreview.net/forum?id=5VotySkajV.
Weblink:https://openreview.net/forum?id=5VotySkajV

2021

2.
J. Conrad, B. Jiang, P. Kässer, V. Belagiannis and M. Ortmanns, "Nonlinearity Modeling for Mixed-Signal Inference Accelerators in Training Frameworks", 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), pp. 1-4, 2021.
DOI:10.1109/ICECS53924.2021.9665503

2020

1.
J. Conrad, P. Vogelmann, M. A. Mokhtar and M. Ortmanns, "Design Approach for Ring Amplifiers", IEEE Transactions on Circuits and Systems I: Regular Papers, Apr. 2020.
DOI:10.1109/TCSI.2020.2986553