Create train_model.py
Browse files- train_model.py +45 -0
train_model.py
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from transformers import GPT2LMHeadModel, GPT2Tokenizer, Trainer, TrainingArguments
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from datasets import load_dataset
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# Загрузка датасета ImageNet
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dataset = load_dataset("imagenet-1k")
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# Инициализация модели и токенизатора
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model_name = "gpt2"
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model = GPT2LMHeadModel.from_pretrained(model_name)
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tokenizer = GPT2Tokenizer.from_pretrained(model_name)
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# Предобработка данных
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def preprocess_data(examples):
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inputs = examples["image"]
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targets = examples["caption"]
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inputs = tokenizer(inputs, padding=True, truncation=True, max_length=512, return_tensors="pt")
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targets = tokenizer(targets, padding=True, truncation=True, max_length=512, return_tensors="pt")
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inputs["labels"] = targets["input_ids"]
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return inputs
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# Применение предобработки к датасету
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dataset = dataset.map(preprocess_data, batched=True)
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# Определение аргументов обучения
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training_args = TrainingArguments(
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output_dir="./model",
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num_train_epochs=5,
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per_device_train_batch_size=4,
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per_device_eval_batch_size=4,
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warmup_steps=500,
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weight_decay=0.01,
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logging_dir="./logs",
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logging_steps=100,
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evaluation_strategy="epoch",
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)
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# Создание трейнера и обучение модели
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trainer = Trainer(
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model=model,
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args=training_args,
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train_dataset=dataset["train"],
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eval_dataset=dataset["validation"],
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data_collator=None,
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)
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trainer.train()
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