Visible to the public Event-based Neural Network for ECG Classification with Delta Encoding and Early Stopping

TitleEvent-based Neural Network for ECG Classification with Delta Encoding and Early Stopping
Publication TypeConference Paper
Year of Publication2020
AuthorsJobst, Matthias, Liu, Chen, Partzsch, Johannes, Yan, Yexin, Kappel, David, Gonzalez, Hector A., Ji, Yue, Vogginger, Bernhard, Mayr, Christian
Conference Name2020 6th International Conference on Event-Based Control, Communication, and Signal Processing (EBCCSP)
KeywordsComputer architecture, delta encoding, early stopping, ECG classification, Electrocardiography, encoding, event-based, feature extraction, Hardware, human factors, human in the loop, machine learning, pubcrawl, Recurrent neural networks, Task Analysis, Training
AbstractWe present a scalable architecture based on a trained filter bank for input pre-processing and a recurrent neural network (RNN) for the detection of atrial fibrillation in electrocardiogram (ECG) signals, with the focus on enabling a very efficient hardware implementation as application-specific integrated circuit (ASIC). Our already very efficient base architecture is further improved by replacing the RNN with a delta-encoded gated recurrent unit (GRU) and adding a confidence measure (CM) for terminating the computation as early as possible. With these optimizations, we demonstrate a reduction of the processing load of 58 % on an internal dataset while still achieving near state-of-the-art classification results on the Physionet ECG dataset with only 1202 parameters.
DOI10.1109/EBCCSP51266.2020.9291357
Citation Keyjobst_event-based_2020