BYOL features plus Protege active learning rank 100 MGCLS candidates, 99 showing diffuse radio characteristics and 55 confirmed as cluster-related emission
The work feeds self-supervised BYOL features extracted from source cutouts into the Astronomaly: Protege active-learning framework and evaluates the pipeline on high-resolution (about 7 arcsec), convolved (15 arcsec), and concatenated-feature MeerKAT Galaxy Cluster Legacy Survey (MGCLS) datasets, using tracers from a human-labelled catalogue as both guidance and benchmark; high-resolution features identify diffuse sources earlier than convolved ones, concatenated features perform best overall, and of the top 100 sources ranked by Protege 99 exhibit some form of diffuse radio emission with 55 confirmed as cluster-related, recovering 55 of 121 tracers from 62,587 sources with only 300 human labels.