create_dataset.py

from datasets import load_dataset


def main():
    id2label = {0: "negative", 1: "positive", -1: "unlabeled"}
    imdb = load_dataset("imdb")

    for split, dset in imdb.items():
        dset = dset.map(lambda x: {"label_text": id2label[x["label"]]})
        dset.to_json(f"{split}.jsonl")


if __name__ == "__main__":
    main()