Go Explore - A Breakthrough In Reinforcement Learning
Go-Explore: A Breakthrough Approach to Hard Exploration Problems in Reinforcement Learning Reinforcement learning algorithms have long struggled with "hard exploration" problems - environments where rewards are sparse and discovering beneficial strategies requires extensive exploration. One classic example of such a challenging environment is the game Montezuma's Revenge, which has historically been a significant hurdle for AI researchers. The Montezuma's Revenge Challenge In Montezuma's Revenge, a player controls a character who must navigate through complex rooms, collecting keys, avoiding enemies, and discovering treasures. What makes this particularly difficult for reinforcement learning algorithms is that: - The agent must learn from raw pixel inputs - Rewards are extremely sparse (sometimes hundreds of actions are needed before receiving any reward) - Complex sequences of actions are required to make progress - Many dangerous obstacles can term...