@article{tradeoffsinensemblingmergingandroutingam,
  title = {Trade-offs in Ensembling, Merging and Routing Among Parameter-Efficient Experts},
  author = {Sanae Lotfi and Lucas Caccia and Alessandro Sordoni and Jordan T. Ash and Miroslav Dudik},
  year = {2026},
  eprint = {2603.03535},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.03535},
}