LoRA adapters fine-tuning Qwen2.5-7B-Instruct to emit a full CIF crystal structure from a prompt of reduced composition + target space-group number. Part of a controlled composition-sweep study (MP-20: MPTS-52 training ratio at fixed volume/steps). Trained with Unsloth, LoRA r=32 / α=64, lr 1e-4, 24,000 unique training crystals, pinned 4,500 steps (no early stopping), 16-bit. Adapter base: unsloth/Qwen2.5-7B-Instruct (loads fine on stock Qwen/Qwen2.5-7B-Instruct). Finding: at matched volume + steps, match declines monotonically as the MP-20 fraction rises — the gain reported for "combined" data was volume, not symmetry composition. Each subfolder contains: model/ (LoRA adapter +…
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Shehrozashoaib
shehrozashoaib
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