@article{ultronanultimateretrieveroncorpuswitha,
  title = {Ultron: An Ultimate Retriever on Corpus with a Model-based Indexer},
  author = {Yujia Zhou and Jing Yao and Zhicheng Dou and Ledell Wu and Peitian Zhang and Ji-Rong Wen},
  year = {2022},
  eprint = {2208.09257},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2208.09257v1},
}