Relationships are declared once and mirrored automatically. A
shares records pair contains some of the same recordings, so
training on one and evaluating on the other contaminates the test set.
Verified means the overlap was checked against the actual data files;
otherwise it is taken from documentation.
this dataset derived fromPTB-XLshares recordsunverified
Feature and annotation layer over the same PTB-XL records (12SL and Uni-G measurements, plus fiducial points). Documented as derived; not checked against the files.