.. role:: hidden :class: hidden-section

.. _Criterions:

Criterions

Criterions compute the loss function given the model and batch, roughly::

loss = criterion(model, batch)

.. automodule:: fairseq.criterions :members:

.. autoclass:: fairseq.criterions.FairseqCriterion :members: :undoc-members:

.. autoclass:: fairseq.criterions.adaptive_loss.AdaptiveLoss :members: :undoc-members: .. autoclass:: fairseq.criterions.composite_loss.CompositeLoss :members: :undoc-members: .. autoclass:: fairseq.criterions.cross_entropy.CrossEntropyCriterion :members: :undoc-members: .. autoclass:: fairseq.criterions.label_smoothed_cross_entropy.LabelSmoothedCrossEntropyCriterion :members: :undoc-members: