Extremal learning: extremizing the output of a neural network in regression problems. - Zakaria Patel; Markus Rummel (CoRR, 2021)

Relationship of Cycling Power and Non-Linear Heart Rate Variability from Everyday Workout Data: Potential for Intensity Zone Estimation and Monitoring. - Stefano Andriolo; Markus Rummel; Thomas Gronwald (Sensors, 2024)