@inproceedings{neurips26xu,
  title     = {Geometry-Calibrated Conformal Abstention for Language Models},
  author    = {Xu, Rui and Chen, Yi and Xie, Sihong and Xiong, Hui},
  booktitle = {The Fortieth Annual Conference on Neural Information Processing Systems (NeurIPS)},
  year      = {2026}
}