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ValueError: Out of options! when passing surr_loss='hinge' to PairwiseAUCLoss #73
Description
passing surr_loss="hinge" to PairwiseAUCLoss results in a ValueError: Out of options!.
Looking at libauc/losses/surrogate.py inside the get_surrogate_loss dispatcher, there is no elif statement for 'hinge', so it falls through to the else block and crashes.
Environment:
LibAUC Version: 2.0.0
PyTorch Version: 2.3.1
Activity
PenGuln commentedon Jun 24, 2026
Thanks for the report! hinge_loss was defined and listed in
__all__but accidentally omitted from theget_surrogate_lossdispatcher, so it passed the assert check but hit the ValueError. Fixed in surrogate.py#L85-L86AmanKashyap0807 commentedon Jun 24, 2026
@PenGuln Thank you so much for correcting f_ns and f_ps, you can also correct it from documentation on https://docs.libauc.org/_modules/libauc/losses/auc.html#PairwiseAUCLoss
PenGuln commentedon Jun 25, 2026
Thanks for the heads-up — the documentation has been updated as well. Please let us know if you run into any further issues!