Create README.md
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README.md
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checkpoint_path = "model_checkpoint.pt"
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if os.path.exists(checkpoint_path):
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checkpoint = torch.load(checkpoint_path)
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embedding_layer.load_state_dict(checkpoint['embedding_state'])
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transformer_encoderLayer.load_state_dict(checkpoint['transformer_state'])
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output_layer.load_state_dict(checkpoint['output_state'])
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optimizer.load_state_dict(checkpoint['optimizer_state'])
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start_epoch = checkpoint['epoch'] + 1
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print(f" Модель загружена, продолжаем с эпохи {start_epoch}")
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else:
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start_epoch = 0
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print(" Чекпоинт не найден, начинаем обучение с нуля")
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epochNum = 20
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for epoch in range(epochNum):
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optimizer.zero_grad()
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epochmy = start_epoch + epoch
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embedded = embedding_layer(input_ids)
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src = embedded.transpose(0, 1)
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outputTransformer = transformer_encoderLayer(src, src_key_padding_mask=(attention_mask == 0))
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outputTransformer = outputTransformer.transpose(0, 1) # обратно [batch, seq_len, embedding_dim]
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logits = output_layer(outputTransformer)
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loss = criterion(logits.view(-1, vocab_size), target_ids.view(-1))
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loss.backward()
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optimizer.step()
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with torch.no_grad():
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embedded = embedding_layer(input_ids)
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src = embedded.transpose(0, 1)
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outputTransformer = transformer_encoderLayer(src, src_key_padding_mask=(attention_mask == 0))
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outputTransformer = outputTransformer.transpose(0, 1)
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logits = output_layer(outputTransformer) # [batch, seq_len, vocab_size]
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predicted_token_ids = torch.argmax(logits, dim=-1) # [batch, seq_len]
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predicted_text = tokenizer.batch_decode(predicted_token_ids, skip_special_tokens=True)
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print("Predicted text:", predicted_text[0])
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print(f"Epoch [{epoch + 1}/{epochNum}] — Loss: {loss.item():.4f}")
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torch.save({
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'embedding_state': embedding_layer.state_dict(),
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'transformer_state': transformer_encoderLayer.state_dict(),
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'output_state': output_layer.state_dict(),
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'optimizer_state': optimizer.state_dict(),
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'epoch': epochmy
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}, "model_checkpoint.pt")
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