@article{facetlevelpersonacontrolbytraitactivated,
  title = {Facet-Level Persona Control by Trait-Activated Routing with Contrastive SAE for Role-Playing LLMs},
  author = {Wenqiu Tang and Zhen Wan and Takahiro Komamizu and Ichiro Ide},
  year = {2026},
  eprint = {2602.19157},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.19157},
}