Events

Quantitative analysis methods for post-hoc interpretability in neural networks for biosignal analysis

Title of the event	Quantitative analysis methods for post-hoc interpretability in neural networks for biosignal analysis
Series	CIADS Colloquium
Organizer	Campus-Institut Data Science (CIDAS)
Speaker	Dr. Nicolai Spicher
Speaker institution	University Medical Center Göttingen (UMG)
Type of event	Kolloquium
Category	Forschung
Registration required	Nein
Details	The increasing availability of large-scale datasets containing biosignals, such as electrocardiography (ECG) or electroencephalography (EEG) led to a surge of machine learning methods. Especially end-to-end deep learning pipelines showed remarkable results in many clinical tasks, often outperforming human experts. However, a pitfall lies in the fact that these are assumed to be "black box" models often based on agnostic features. While they bear the theoretical potential to aid clinicians in diagnostics or treatment decisions, clinicians need to be able to comprehend the reasoning behind the algorithm, as a ”Clever Hans” prediction, based on spurious or artifactual correlations, might lead to wrong decisions and adverse consequences for patients. Diverse post-hoc interpretability methods have been developed in recent years but they are used in most cases only qualitatively on single signals of individual patients and give only anecdotal evidence. In this talk, I will present the activities of the UMG biosignal processing research group towards extracting quantitative information of these interpretability methods to explain what deep neural networks for biosignal classification actually "learned". Examples stem from the field of cardiac disease classification and sleep studies.
Date	Start: 15.06.2023, 14:15 Uhr Ende: 15.06.2023 , 15:15 Uhr
Location	Institut für Informatik (Goldschmidtstrasse 7) 2.101
Contact	0551 39-21289 imatthi@gwdg.de
External link	https://www.uni-goettingen.de/en/653203.html