Trainers are responsible for defining the the way to train a learnable scorer.
xpmir.learning.trainers.multiple.MultipleTrainer
xpmir.letor.trainers.LossTrainer
xpmir.letor.trainers.pointwise.PointwiseTrainer
xpmir.letor.trainers.pointwise
PointwiseTrainer
PointwiseLoss
MSELoss
BinaryCrossEntropyLoss
xpmir.letor.samplers
PointwiseSampler
PointwiseModelBasedSampler