@article{cppocontrastiveperceptionpolicyoptimizat,
  title = {CPPO: Contrastive Perception Policy Optimization for VLM Agents},
  author = {Ahmad Rezaei and Mohsen Gholami and Saeed Ranjbar Alvar and Kevin Cannons and Mohammad Asiful Hossain and Zhou Weimin and Yong Zhang and Mohammad Akbari},
  year = {2026},
  eprint = {2601.00501},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.00501},
}