Imperial College London

Dr Marcela P. Vizcaychipi

Faculty of MedicineDepartment of Surgery & Cancer

Honorary Clinical Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 3315 8903m.vizcaychipi Website

 
 
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Location

 

3.21Chelsea and Westminster HospitalChelsea and Westminster Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Al-Hindawi:2022:10.1145/3517031.3529617,
author = {Al-Hindawi, A and Vizcaychipi, M and Demiris, Y},
doi = {10.1145/3517031.3529617},
pages = {1--7},
publisher = {ACM},
title = {Faster, better blink detection through curriculum learning by augmentation},
url = {http://dx.doi.org/10.1145/3517031.3529617},
year = {2022}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - Blinking is a useful biological signal that can gate gaze regression models to avoid the use of incorrect data in downstream tasks. Existing datasets are imbalanced both in frequency of class but also in intra-class difficulty which we demonstrate is a barrier for curriculum learning. We thus propose a novel curriculum augmentation scheme that aims to address frequency and difficulty imbalances implicitly which are are terming Curriculum Learning by Augmentation (CLbA).Using Curriculum Learning by Augmentation (CLbA), we achieve a state-of-the-art performance of mean Average Precision (mAP) 0.971 using ResNet-18 up from the previous state-of-the-art of mean Average Precision (mAP) of 0.757 using DenseNet-121 whilst outcompeting Curriculum Learning by Bootstrapping (CLbB) by a significant margin with improved calibration. This new training scheme thus allows the use of smaller and more performant Convolutional Neural Network (CNN) backbones fulfilling Nyquist criteria to achieve a sampling frequency of 102.3Hz. This paves the way for inference of blinking in real-time applications.
AU - Al-Hindawi,A
AU - Vizcaychipi,M
AU - Demiris,Y
DO - 10.1145/3517031.3529617
EP - 7
PB - ACM
PY - 2022///
SP - 1
TI - Faster, better blink detection through curriculum learning by augmentation
UR - http://dx.doi.org/10.1145/3517031.3529617
UR - https://dl.acm.org/doi/10.1145/3517031.3529617
ER -