@inproceedings{liu2027greedysorting,
  title = {{When Greedy Is Sorting: Exact and Certified Ideal Rankings for Novelty Metrics}},
  author = {Liu, Kehan and Chen, Zhaoyun and Yan, Xianquan},
  year = {2027},
  booktitle = {ACM International Conference on Web Search and Data Mining (WSDM) 2027},
  url = {https://arxiv.org/abs/2611.10576},
  eprint = {2611.10576},
  archiveprefix = {arXiv},
  primaryclass = {cs.IR},
}