Apply for code for triplet sampling and semi-hard triplet mining

[BioAmelie]

@gheimberg
Hi，
Could you provided the code how to do triplet sampling and semi-hard triplet mining according to cell ontology across studies?

Best,
minfang

[tony-kuo]

They are in the triplet_selector class: https://github.com/Genentech/scimilarity/blob/main/src/scimilarity/triplet_selector.py