@article{JMLR:v25:23-0234,
  author  = {Gan Yuan and Yunfan Zhao and Samory Kpotufe},
  title   = {Regimes of No Gain in Multi-class Active Learning},
  journal = {Journal of Machine Learning Research},
  year    = {2024},
  volume  = {25},
  number  = {129},
  pages   = {1--31},
  url     = {http://jmlr.org/papers/v25/23-0234.html}
}