titleSciForma: Structure-Faithful Generation of Scientific Diagrams
authorsYuxuan Luo, Peng Zhang, Xinjie Zhang, Xun Guo, Zhouhui Lian, Yan Lu
date2026-07-20
venuearXiv (preprint, not peer reviewed)
idarXiv:2607.18091
affiliationPeking University
upvotes24 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf
abstractStructural fidelity is essential to scientific methodology diagrams. To communicate research logic, these diagrams must faithfully render components, directional relations, and textual annotations. Since a single error, such as a reversed arrow or an unreadable equation, can invalidate the entire figure, structural fidelity is inherently conjunctive: correctness on one axis cannot compensate for failure on another. Current open-source models fail to satisfy this criterion. Supervised fine-tuning (SFT) learns plausible layouts but cannot reliably ensure structural correctness, while scalar reward-based post-training obscures which structural dimension has failed. To address this, we introduce SciForma, a framework for the structure faithful generation of scientific methodology diagrams. Specifically, SciForma decomposes diagram quality into three structural axes: Component, Arrow, and Text, guided by a structural inventory. Built on this foundation, we curate SciFormaData-700K for structured training and SciFormaBench-2K for logic-verified evaluation. To close the gap left by SFT, we develop Multi-Dimensional Conjunctive Preference Optimization (M-DPO), which enforces simultaneous correctness across all axes and adaptively routes gradients to the most deficient dimension in post-training. The same structural inventory also enables iterative editing at inference time to correct residual errors. This combination allows SciForma-9B to exceed all open-source baselines and GPT-Image-1.5 on both SciFormaBench-2K and AIBench, bringing open scientific diagram generation close to proprietary-level structural fidelity. Our code and data will be available at: https://github.com/microsoft/SciForma.

cite

@misc{luo2026sciforma,
  title={SciForma: Structure-Faithful Generation of Scientific Diagrams},
  author={Yuxuan Luo and Peng Zhang and Xinjie Zhang and Xun Guo and Zhouhui Lian and Yan Lu},
  year={2026},
  eprint={2607.18091},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2607.18091}
}