19 research outputs found
Uncertainty Quantification in Machine Learning for Biosignal Applications -- A Review
Uncertainty Quantification (UQ) has gained traction in an attempt to fix the black-box nature of Deep Learning. Specifically (medical) biosignals such as electroencephalography (EEG), electrocardiography (ECG), electroocculography (EOG) and electromyography (EMG) could benefit from good UQ, since these suffer from a poor signal to noise ratio, and good human interpretability is pivotal for medical applications and Brain Computer Interfaces. In this paper, we review the state of the art at the intersection of Uncertainty Quantification and Biosignal with Machine Learning. We present various methods, shortcomings, uncertainty measures and theoretical frameworks that currently exist in this application domain. Overall it can be concluded that promising UQ methods are available, but that research is needed on how people and systems may interact with an uncertainty model in a (clinical) environment
Uncertainty Quantification in Machine Learning for Biosignal Applications -- A Review
Uncertainty Quantification (UQ) has gained traction in an attempt to fix the
black-box nature of Deep Learning. Specifically (medical) biosignals such as
electroencephalography (EEG), electrocardiography (ECG), electroocculography
(EOG) and electromyography (EMG) could benefit from good UQ, since these suffer
from a poor signal to noise ratio, and good human interpretability is pivotal
for medical applications and Brain Computer Interfaces. In this paper, we
review the state of the art at the intersection of Uncertainty Quantification
and Biosignal with Machine Learning. We present various methods, shortcomings,
uncertainty measures and theoretical frameworks that currently exist in this
application domain. Overall it can be concluded that promising UQ methods are
available, but that research is needed on how people and systems may interact
with an uncertainty model in a (clinical) environment.Comment: 26 pages, 13 figures, 3 table
Uncertainty Quantification in Machine Learning for Biosignal Applications -- A Review
Uncertainty Quantification (UQ) has gained traction in an attempt to fix the black-box nature of Deep Learning. Specifically (medical) biosignals such as electroencephalography (EEG), electrocardiography (ECG), electroocculography (EOG) and electromyography (EMG) could benefit from good UQ, since these suffer from a poor signal to noise ratio, and good human interpretability is pivotal for medical applications and Brain Computer Interfaces. In this paper, we review the state of the art at the intersection of Uncertainty Quantification and Biosignal with Machine Learning. We present various methods, shortcomings, uncertainty measures and theoretical frameworks that currently exist in this application domain. Overall it can be concluded that promising UQ methods are available, but that research is needed on how people and systems may interact with an uncertainty model in a (clinical) environment
Uncertainty Quantification for cross-subject Motor Imagery classification
Uncertainty Quantification aims to determine when the prediction from a
Machine Learning model is likely to be wrong. Computer Vision research has
explored methods for determining epistemic uncertainty (also known as model
uncertainty), which should correspond with generalisation error. These methods
theoretically allow to predict misclassifications due to inter-subject
variability. We applied a variety of Uncertainty Quantification methods to
predict misclassifications for a Motor Imagery Brain Computer Interface. Deep
Ensembles performed best, both in terms of classification performance and
cross-subject Uncertainty Quantification performance. However, we found that
standard CNNs with Softmax output performed better than some of the more
advanced methods