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README.md
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---
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license: apache-2.0
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---
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license: apache-2.0
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---
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pip install transformers datasets torch scikit-learn
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import torch
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from datasets import load_dataset
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from transformers import AutoTokenizer, AutoModelForSequenceClassification, TrainingArguments, Trainer
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from sklearn.model_selection import train_test_split
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from sklearn.metrics import accuracy_score, f1_score
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def load_and_prepare_data():
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dataset = load_dataset("emotion")
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train_dataset = dataset["train"]
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test_dataset = dataset["test"]
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return train_dataset, test_dataset
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def tokenize_dataset(dataset):
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tokenizer = AutoTokenizer.from_pretrained("distilbert-base-uncased")
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def tokenize_function(examples):
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return tokenizer(examples["text"], padding="max_length", truncation=True)
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tokenized_dataset = dataset.map(tokenize_function, batched=True)
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return tokenized_dataset
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def load_model():
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num_labels = 6
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model = AutoModelForSequenceClassification.from_pretrained("distilbert-base-uncased", num_labels=num_labels)
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return model
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def define_training_arguments():
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training_args = TrainingArguments(
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output_dir="./results",
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num_train_epochs=3,
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per_device_train_batch_size=16,
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per_device_eval_batch_size=64,
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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=10,
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evaluation_strategy="epoch",
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save_strategy="epoch",
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load_best_model_at_end=True,
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metric_for_best_model="accuracy",
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greater_is_better=True,
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)
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return training_args
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def compute_metrics(eval_pred):
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logits, labels = eval_pred
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predictions = torch.argmax(torch.tensor(logits), dim=-1)
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accuracy = accuracy_score(labels, predictions)
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f1 = f1_score(labels, predictions, average="weighted")
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return {"accuracy": accuracy, "f1": f1}
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def main():
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train_dataset, test_dataset = load_and_prepare_data()
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tokenized_train_dataset = tokenize_dataset(train_dataset)
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tokenized_test_dataset = tokenize_dataset(test_dataset)
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model = load_model()
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training_args = define_training_arguments()
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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=tokenized_train_dataset,
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eval_dataset=tokenized_test_dataset,
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compute_metrics=compute_metrics,
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)
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trainer.train()
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trainer.evaluate()
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trainer.save_model()
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if __name__ == "__main__":
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main()
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