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Migrate train_bi-encoder_mnrl.py from model.fit to SentenceTransformerTrainer #3693

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Migrate train_bi-encoder_mnrl.py from model.fit to SentenceTransformerTrainer #3693

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27 changes: 19 additions & 8 deletions ...raining/ms_marco/train_bi-encoder_mnrl.py → ...m model.fit to SentenceTransformerTrainer
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Original file line number Diff line number Diff line change
Expand Up @@ -249,15 +249,26 @@ def __len__(self):
train_loss = losses.MultipleNegativesRankingLoss(model=model)

# Train the model
model.fit(
train_objectives=[(train_dataloader, train_loss)],
epochs=num_epochs,
from sentence_transformers import SentenceTransformerTrainer, SentenceTransformerTrainingArguments

training_args = SentenceTransformerTrainingArguments(
output_dir=model_save_path,
num_train_epochs=num_epochs,
per_device_train_batch_size=train_batch_size,
warmup_steps=args.warmup_steps,
use_amp=True,
checkpoint_path=model_save_path,
checkpoint_save_steps=len(train_dataloader),
optimizer_params={"lr": args.lr},
fp16=True,
learning_rate=args.lr,
save_steps=len(train_dataloader),
save_total_limit=5,
)

trainer = SentenceTransformerTrainer(
model=model,
args=training_args,
train_dataset=train_dataset,
loss=train_loss,
)
trainer.train()

# Save the model
model.save(model_save_path)
model.save_pretrained(model_save_path)