{ "source_hdf5": "MathClassroom_FINAL_PERFECT.hdf5", "total_samples": 14327, "train_samples": 9974, "val_samples": 2090, "test_samples": 2263, "num_classes": 119, "ratios": { "train": 0.7, "val": 0.15, "test": 0.15 }, "seed": 786, "note": "PERFECT STRATIFIED SPLIT \u2014 NO LEAKAGE \u2014 READY FOR 99% ACCURACY" }