https://medium.freecodecamp.org/an-intro-to-advantage-actor-critic-methods-lets-play-sonic-the-hedgehog-86d6240171d

Since the beginning of this course, we’ve studied two different reinforcement learning methods:

But both of these methods have big drawbacks. That’s why, today, we’ll study a new type of Reinforcement Learning method which we can call a “hybrid method”: Actor Critic. We’ll using two neural networks: