This dataset combines original CEFR-level sentences from training, validation, and test sets with synthetic sentences generated by a fine-tuned LLaMA-3-8B model for CEFR levels A1 (2000 sentences) and A2 (100 sentences). Synthetic sentences were validated using a fine-tuned MLP classifier (~93% accuracy) to ensure the predicted CEFR level is within 1 level of the intended level (e.g., A1 accepts A1, A2; A2 accepts A1, A2, B1). Duplicate sentences were… See the full description on the dataset page:
https://huggingface.co/datasets/Mr-FineTuner/CEFR_Mixed_Dataset_A1_A2_sisa.
