Safety Exploration

Safety Gym, OpenAI, 2019-11-23
- https://openai.com/blog/safety-gym/
- Benchmarking Safe Exploration in Deep Reinforcement Learning
  - https://d4mucfpksywv.cloudfront.net/safexp-short.pdf
- Constrained Policy Optimization
  - https://arxiv.org/abs/1705.10528