Lifelong Learning in Costly Feature Spaces

@article{balcan2019lifelong,
  title = {Lifelong Learning in Costly Feature Spaces},
  author = {Maria-Florina Balcan and Avrim Blum and Vaishnavh Nagarajan},
  year = {2019},
  journal = {Theoretical Computer Science},
  eprint = {1706.10271},
  archivePrefix = {arXiv},
  doi = {10.1016/j.tcs.2019.11.010},
  url = {https://arxiv.org/abs/1706.10271},
}