in code/source/postprocessing.py [0:0]
def y2label_for_report(y_true, y_pred, int2tag, mask=0):
zipped = zip(y_true.flat, y_pred.flat)
out_true = []
out_pred = []
for zip_i in zipped:
a, b = tuple(zip_i)
if a != mask:
out_true.append(int2tag[a])
out_pred.append(int2tag[b])
return out_true, out_pred