Skill Topic · Cinematic

🔀 Train-Test Split & Cross-Validation

Aliens School — AI Series #73 Hinglish mein Model Evaluation samjho! 🚀

Overview

🔀 Train-Test Split & Cross-Validation — Quick Facts

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Split Ratio: Train

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80/20: 80%

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70/30: 70%

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90/10: 90%

Topic 1

💡 Problem Kya Hai?

🤖 ` ┌──────────────────────────────────────────────┐ │ ML model banana hai to: │ │ │ │ ❌…

Topic 2

📊 Train-Test Split

🧠 ` FULL DATASET (100 samples) ┌──────────────────────────────────────────────┐ │ ■ ■ ■ ■ ■…

Topic 3

📊 Train-Validation-Test Split

💡 ` ┌──────────────────────────────────────────────┐ │ 3-way split (Deep Learning…

Topic 4

🔄 Cross-Validation (K-Fold)

⚡ ` ┌──────────────────────────────────────────────┐ │ Problem: Simple split me result LUCK…

Topic 5

📋 Types of Cross-Validation

🎯 1. K-Fold (Standard) ` K = 5 (most common) or K = 10 Data ko K equal parts me divide Har…

Topic 6

🔀 Shuffling — Important!

🔮 ` ┌──────────────────────────────────────────────┐ │ ⚠️ ALWAYS SHUFFLE before splitting!…

Topic 7

💻 JavaScript Example

🌐 `javascript // Train-Test Split Implementation function trainTestSplit(X, y, testRatio =…

Topic 8

📊 Data Leakage — AVOID!

📊 ` ┌──────────────────────────────────────────────┐ │ ⚠️ DATA LEAKAGE = test data ki info…

Topic 9

❓ Quiz

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a) Training faster hoti hai

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b) Unseen data pe performance…

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c) Data kam lagta hai

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a) 0

Quick Quiz

Quiz — Question 1

🔀 Train-Test Split & Cross-Validation ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

🔀 Train-Test Split & Cross-Validation ka '80/20' kya hai?

Complete! 🎉

🔀 Train-Test Split & Cross-Validation Complete!

Aliens School · HIEN · Cinematic Knowledge

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