@article{learningtocollaborateviastructurescluste,
  title = {Learning to Collaborate via Structures: Cluster-Guided Item Alignment for Federated Recommendation},
  author = {Yuchun Tu and Zhiwei Li and Bingli Sun and Yixuan Li and Xiao Song},
  year = {2026},
  eprint = {2602.21957},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2602.21957},
}