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# Description of a seizure detection algorithm | ||
title: "Seeuws - Avoiding Post-Processing With Event-Based Detection in Biomedical Signals" | ||
image: "ghcr.io/esl-epfl/eventnet_2024:latest" | ||
authors: | ||
- given-names: Nick | ||
family-names: Seeuws | ||
affiliation: KU Leuven | ||
- given-names: Clément | ||
family-names: Samanos | ||
affiliation: EPFL-ESL | ||
- given-names: Jonathan | ||
family-names: Dan | ||
email: [email protected] | ||
affiliation: EPFL-ESL | ||
orcid: 'https://orcid.org/0000-0002-2338-572X' | ||
version: 0.1 | ||
date-released: "2024-03-11" | ||
abstract: > | ||
Objective: Finding events of interest is a common task in biomedical signal | ||
processing. The detection of epileptic seizures and signal artefacts are two | ||
key examples. Epoch-based classification is the typical machine learning | ||
framework to detect such signal events because of the straightforward | ||
application of classical machine learning techniques. Usually, | ||
post-processing is required to achieve good performance and enforce temporal | ||
dependencies. Designing the right post-processing scheme to convert these | ||
classification outputs into events is a tedious, and labor-intensive element | ||
of this framework. | ||
Methods: We propose an event-based modeling framework that directly works | ||
with events as learning targets, stepping away from ad-hoc post-processing | ||
schemes to turn model outputs into events. We illustrate the practical power | ||
of this framework on simulated data and real-world data, comparing it to | ||
epoch-based modeling approaches. | ||
Results: We show that event-based modeling (without tailored post-processing) | ||
performs on par with or better than epoch-based modeling with extensive | ||
post-processing. | ||
Conclusion: These results show the power of treating events as direct | ||
learning targets, instead of using ad-hoc post-processing to obtain them, | ||
severely reducing design effort. | ||
Significance: The event-based modeling framework can easily be applied to | ||
other event detection problems in signal processing, removing the need for | ||
intensive task-specific post-processing. | ||
This model was trained on the train and dev set of TUSZ v2.0.3. | ||
license: GPL-3.0 | ||
repository: https://github.com/esl-epfl/eventnet_2024 | ||
|
||
# List all datasets that were used to train this algorithm | ||
Dataset: | ||
- title: "TUH EEG Seizure Corpus v2.0.3" | ||
license: "https://isip.piconepress.com/projects/nedc/forms/tuh_eeg.pdf" | ||
identifiers: | ||
- description: > | ||
This database is a subset of the TUH EEG Corpus that was collected | ||
from archival records of clinical EEG at Temple University Hospital | ||
recorded between 2002 – 2017. From this large dataset, a subset of | ||
files with a high likelihood of containing seizures was retained | ||
based on clinical notes and on the output of seizure detection | ||
algorithms. | ||
V2.0.0 contains 7377 .edf files from 675 subjects for a total | ||
duration of 1476 hours of data. The files are mostly short | ||
(avg. 10 minutes). The dataset has heterogeneous sampling frequency | ||
and number of channels. All files are acquired at a minimum of 250 | ||
Hz. A minimum of 17 EEG channels is available in all recordings. | ||
They are positioned according to the 10-20 system. | ||
The annotations are provided as .csv and contain the start time, | ||
stop, channel and seizure type. | ||
type: url | ||
value: "https://isip.piconepress.com/projects/nedc/html/tuh_eeg/" |