@article{JMLR:v22:20-627,
  author  = {Hongwei Sun and Qiang Wu},
  title   = {Optimal Rates of Distributed Regression with Imperfect Kernels},
  journal = {Journal of Machine Learning Research},
  year    = {2021},
  volume  = {22},
  number  = {171},
  pages   = {1--34},
  url     = {http://jmlr.org/papers/v22/20-627.html}
}