@article{DBLP:journals/corr/abs-2601-05688,
  author       = {Muye Huang and
                  Lingling Zhang and
                  Yifei Li and
                  Yaqiang Wu and
                  Jun Liu},
  title        = {SketchVL: Policy Optimization via Fine-Grained Credit Assignment for
                  Chart Understanding and More},
  journal      = {CoRR},
  volume       = {abs/2601.05688},
  year         = {2026},
  url          = {https://doi.org/10.48550/arXiv.2601.05688},
  doi          = {10.48550/ARXIV.2601.05688},
  eprinttype   = {arXiv},
  eprint       = {2601.05688},
  timestamp    = {Fri, 13 Feb 2026 06:12:48 +0100},
  biburl       = {https://dblp.org/rec/journals/corr/abs-2601-05688.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}