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Wiki Article · Cinematic

Reinforcement Learning

Reinforcement Learning (RL) machine learning ka ek paradigm hai jisme ek agent apne environment ke…

Overview
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Reinforcement Learning — Quick Facts

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Property: Detail

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Topic: Reinforcement Learning (RL)

Type: AI / Machine Learning Paradigm

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Definition: Learning paradigm where an agent…

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Infobox

📚 | Property | Detail | |---|---| | Topic | Reinforcement Learning (RL) | | Type | AI /…
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How RL Works (Core Loop)

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Reward (r) — positive (good…

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New State (s') — action ke baad…

RL me delayed reward hota hai —…

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Agent ko seekhna padta hai ke…

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Key Concepts

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Learner/decision maker — woh…

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Game me: player. Robot me:…

Agent ke baahir sab kuch — jis…

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Game me: game board + rules. Robot…

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Types of RL

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Model-based RL: Agent ke paas…

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Model-free RL: Agent ko…

Value-based: Q-values seekho,…

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Policy-based: Directly policy…

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Major RL Algorithms

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Discrete actions (games, grid…

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Continuous actions (robotics,…

LLM alignment (RLHF): PPO…

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Simple/educational: Q-Learning…

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Exploration vs Exploitation

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Exploitation: Jo action pehle se…

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Exploration: Naye, unknown actions…

Balance zaroori hai — sirf…

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Epsilon-Greedy (ε-greedy): ε…

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RL vs Supervised vs Unsupervised Learning

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Jab sequential decision making ho…

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Jab labeled data available na ho…

Jab environment se interaction…

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Jab optimal strategy/policy…

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Real-World Applications

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AlphaGo (DeepMind, 2016): RL +…

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Atari DQN (DeepMind, 2015): RL…

OpenAI Five (2019): RL agents ne…

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AlphaZero: Ek hi algorithm se…

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RLHF — RL from Human Feedback

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RLHF = RL + Human Preferences — RL…

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ChatGPT, GPT-4, Claude — sab RLHF…

Problem: LLM pre-training se model…

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RLHF solution: human feedback se…

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Challenges

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RL ko millions (sometimes…

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Real world me millions of…

Mitigation: Simulation…

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Reward function design karna…

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Best Practices and Future

🎯 1. Start with simulation — Real environment se pehle simulate karo — faster, cheaper,…
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Glossary

| # | Term | Meaning | |---|---|---| | 1 | Reinforcement Learning (RL) | ML paradigm —…
Comparison

RL vs Supervised vs Unsupervised Learning

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1: Data

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2: Feedback

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3: Goal

Diagram
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Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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Machine Learning

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Deep Learning

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Neural Network

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Supervised Learning

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Unsupervised Learning

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Natural Language Processing

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Reinforcement Learning ka sabse sahi definition kya hai?

Quick Quiz
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Quiz — Question 2

Reinforcement Learning ka 'Topic' kya hai?

Complete! 🎉
COMPLETE

Reinforcement Learning Complete!

Aliens Wiki · Hinglish · Cinematic Knowledge

Reinforcement Learning Complete

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Machine Learning

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