Dealing with scarce labelled data: Semi-supervised deep learning with mix match for covid-19 detection using chest x-ray images S Calderon-Ramirez, R Giri, S Yang, A Moemeni, M Umana, D Elizondo, ... 2020 25th International Conference on Pattern Recognition (ICPR), 5294-5301, 2021 | 31 | 2021 |