What is reinforcement learning used for?#
Instead of being programmed with explicit instructions, the AI learns on its own by testing different actions and seeing which ones lead to the best cumulative outcome, helping the business make optimal sequential decisions in complex environments.
How does reinforcement learning work?#
The AI, referred to as an "agent," operates within a defined environment, like a factory floor simulation or a customer website. The agent can take various actions, such as adjusting a machine's settings or showing a specific advertisement. After each action, it receives feedback from the environment in the form of a "reward" for a positive outcome or a "penalty" for a negative one.
The agent's objective is to maximize its total reward over time. It continuously refines its decision-making strategy, learning from the consequences of its past actions to discover which behaviors lead to the most successful results. This allows it to develop sophisticated strategies for achieving a goal, often uncovering optimal paths that a human would not have found.
How is reinforcement learning different from supervised learning?#
Reinforcement learning is focused on learning a sequence of actions to achieve a goal. In contrast, Supervised Learning learns from a pre-labeled dataset, much like a student studying from a textbook with an answer key; it's used for tasks like classification (e.g., identifying spam email). Unsupervised Learning finds hidden patterns in data without any labels, like grouping customers into segments based on purchase history. Reinforcement learning doesn't have an answer key; it discovers the best actions through exploration.