> Can we transform an RL agent's reward function > to avoid undesired effects on the environment? To me this is the toughest nut in the lot. Training a Pac-ma

> Can we transform an RL agent's reward function > to avoid undesired effects on the environment? To me this is the toughest nut in the lot. Training a Pac-man agent to avoid ghosts and eat pellets, in a world of infinite hazards and cautions! Any strategies?