@inproceedings{lin2026pgpo,
  title     = {PGPO: Prototype-Guided Progressive Obfuscation for Privacy-Preserving LLM-Enhanced Recommendation},
  author    = {Lin, Shengxiang and Su, Jiajie and Zhou, Pengyang and Chen, Xiang and Zheng, Xiaolin and Tian, Feng and Chen, Chaochao},
  booktitle = {Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing},
  year      = {2026}
}