Skill Topic · Cinematic

🏘️ KNN — K-Nearest Neighbors

📘 Course: Data Science | 📑 Topic #47 | 🏷️ Section 6: ML for Data Science ⬅️ 46-SVM | ➡️…

Overview

🏘️ KNN — K-Nearest Neighbors — Quick Facts

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📑 Topic #47: 🏷️ Section 6: ML for Data Science

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> ⬅️ [46-SVM](46-SVM.md): ➡️ 48-Naive-Bayes

Topic 1

🎯 Is Topic Me Kya Seekhoge?

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KNN kya hai — padosi dekho,…

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Distance Metrics — Euclidean,…

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K ka choice — kitne neighbors dekhe

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Lazy Learning — no training, sirf…

Topic 2

🏘️ KNN — Intuition

💡 ` ╔═══════════════════════════════════════════════════════════════╗ ║ K-NEAREST NEIGHBORS…

Topic 3

📊 Distance Metrics

🎯 ` ┌─────────────────────────────────────────────────────────────┐ │ DISTANCE METRICS 📊 │…

Topic 4

📊 K Value — Effect on Decision Boundary

⭐ `python ======================================== 📊 K Effect on Boundary…

Topic 5

📊 Finding Best K

🔑 `python ======================================== 📊 Best K via Cross-Validation…

Topic 6

📊 Weighted KNN

✨ `python ======================================== 📊 Uniform vs Distance-Weighted KNN…

Topic 7

📊 Curse of Dimensionality

🌟 `python ======================================== 📊 Curse of Dimensionality…

Topic 8

📊 KNN for Regression

🚀 `python ======================================== 📊 KNN Regression…

Topic 9

📊 Full Python Class: KNNEngine

📚 `python from dataclasses import dataclass, field from typing import Optional import numpy…

Topic 10

📊 KNN vs Other Algorithms

💡 ` ┌──────────────────┬──────────────┬──────────────┬──────────────┐ │ Feature │ KNN │ SVM…

Topic 11

🧠 Quiz Time!

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A) Slow training

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B) No explicit training phase —…

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C) Lazy evaluation

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D) Simple algorithm

Topic 12

📌 Key Takeaways

⭐ | Concept | Yaad Rakho | |---------|------------| | KNN | Nearest neighbors se…

Topic 13

⬅️ [46-SVM](46-SVM.md) | ➡️ [48-Naive-Bayes](48-Naive-Bayes.md)

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Quick Quiz

Quiz — Question 1

🏘️ KNN — K-Nearest Neighbors ka sabse sahi definition kya hai?

Complete! 🎉

🏘️ KNN — K-Nearest Neighbors Complete!

Aliens School · HIEN · Cinematic Knowledge

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