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Machine Learning
An Interactive Guide to
Reinforcement Learning

From random actions to optimal decisions through continuous learning

🎮 Use arrow keys or buttons to guide the agent to the goal!

Moves: 0 Reward: 0
Section 1

The Core Loop of RL

Understanding the fundamental cycle that powers machine learning

The decision-maker
Decisions taken
Where actions occur
Feedback signal

Click any component

to learn more

Section 2

Learning Over Time

Watch how an agent improves through episodes of trial and error

Episodes Reward 0 25 50 75 100 Early Episodes Middle Episodes Later Episodes

Early Episodes

Random actions, many mistakes. The agent explores blindly.

Middle Episodes

Pattern recognition begins. The agent starts learning.

Later Episodes

Optimized strategy achieved. Performance plateaus.

Section 3

Exploration vs Exploitation

Finding the balance between trying new things and using what works

🔍 Explore 💎 Exploit
More Random More Optimal

Current Strategy: Balanced

The agent tries new actions 50% of the time while exploiting known good actions 50% of the time.

Move slider and watch the action choices change

Section 4

Rewards & Feedback

How positive and negative signals shape agent behavior

Positive Reinforcement

+10 Reward

Rewards for good actions encourage the agent to repeat them.

Click to see example →

Negative Reinforcement

-5 Penalty

Penalties for bad actions teach the agent what to avoid.

Click to see example →

🎮 Interactive Q-Learning Demo

Train an agent to find the best path! Click cells to set rewards, then watch it learn.

Training Progress 0 / 100 episodes

Click cells to place goals and traps, then train!

Or try the simple reward feedback demo:

Agent Confidence 50%

Click an action to start!

Section 5

Real-World Applications

Reinforcement learning powers innovation across industries

🎮

Game AI

🚗

Self-Driving Cars

🤖

Robotics

📊

Recommendations

Energy Systems

💹

Algorithmic Trading

Summary

Key Takeaways

The essential principles of Reinforcement Learning

Learning Through Interaction

Agents learn by directly interacting with their environment, receiving feedback for every action.

Trial and Error is Essential

Mistakes are valuable learning opportunities. Every failure brings the agent closer to success.

Continuous Improvement Over Time

Performance improves gradually through repeated episodes. Patience leads to mastery.

Rewards Guide Intelligence

The reward signal is the compass. Properly designed rewards lead to intelligent behavior.

Ready to Explore More?

Reinforcement Learning is transforming how machines learn and make decisions. Start your journey into AI today!