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Polynomial and Regularized Regression · Lesson 2
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Lesson 2 · Cinematic Video

Regularization

Supervised Machine Learning: Regression · Polynomial and Regularized Regression

Overview
🌟

Aaj Hum Kya Seekhenge?

Regularization overfitting prevent karta hai. Is lesson me hum Regularization ke important concepts…

📖
Machine Learning
🎓
Supervised Machine Learning: Regression
⏱️
~55 min
Learning Goals

Seekhne Ka Maqsad

🎯

Ridge Regression (L2) ko detail me samajh…

📚

Lasso Regression (L1) ke concepts clearly…

💡

Elastic Net ki practical application seekh…

⚡

Alpha Selection ko professional level pe…

Topic 1
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Ridge Regression (L2)

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penalty: α * Σβ² — yeh aspect…

🔑

shrinks coefficients — yeh aspect…

⚡

never zero — yeh aspect Ridge…

🎯

from sklearn.linear_model import…

Topic 2
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Lasso Regression (L1)

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penalty: α * Σ|β| — yeh aspect…

🔑

can zero out coefficients (feature…

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Lasso() — yeh aspect Lasso…

🎯

sparse models — yeh aspect Lasso…

Topic 3
🎯

Elastic Net

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L1 + L2 combined — yeh aspect…

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l1_ratio parameter (0=Ridge,…

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best of both — yeh aspect Elastic…

Topic 4
📥 📥 ⚙️ 🧠 ⚙️ 🔬 💡 🎯 INPUT PROCESSING ANALYSIS OUTPUT

Alpha Selection

💡

RidgeCV — yeh aspect Alpha…

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LassoCV — yeh aspect Alpha…

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cross-validation for alpha — yeh…

🎯

regularization path — yeh aspect…

Topic 5
🤖 AI 📊 ML 🧠 DL ✨

Comparison

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Ridge (multicollinearity) — yeh…

🔑

Lasso (feature selection) — yeh…

⚡

Elastic Net (many features, some…

Topic 6
🤖 AI 📊 ML 🧠 DL ✨

Practical exercises

✨ Practical exercises ka focus yeh hai ke polynomial fitting, regularization comparison,…
Key Takeaways

Aaj Kya Seekha?

1️⃣

Ridge Regression (L2) — penalty: α *…

2️⃣

Lasso Regression (L1) — penalty: α *…

3️⃣

Elastic Net — L1 + L2 combined;…

4️⃣

Alpha Selection — RidgeCV; LassoCV;…

Quick Quiz
? ? ? 🧠 QUIZ TIME

Quiz — Question 1

Regularization me Ridge Regression (L2) ka kya role hai?

Quick Quiz
? ? ? 🧠 QUIZ TIME

Quiz — Question 2

Lasso Regression (L1) ko samajhna kyun zaruri hai?

Quick Quiz
? ? ? 🧠 QUIZ TIME

Quiz — Question 3

Alpha Selection ka practical benefit kya hai?

Complete! 🎉
⭐ ✨ 🌟 ⭐ COMPLETE

Lesson 2 Complete!

Regularization · Polynomial and Regularized Regression

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Lesson 2 Complete

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