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📊 Topic 06: Bag of Words & TF-IDF

Course: NLP Advanced — Section 1: NLP Foundations Topic: 6 of 75 | Prev: 05-POS-Tagging-Parsing.md…

Overview

📊 Topic 06: Bag of Words & TF-IDF — Quick Facts

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Topic 1

🎯 Overview

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Bag of Words (BoW) = text ko…

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TF-IDF = word importance measure —…

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Ye classical text representation…

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Simple but powerful — search…

Topic 2

🔄 BoW & TF-IDF Intuition

💡 ` ┌──────────────────────────────────────────────────────────────┐ │ Bag of Words (BoW) —…

Topic 3

🐍 Complete Python Implementation

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Sublinear TF: 1 + log(tf) instead…

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Smooth IDF: log(1 + N/df) to avoid…

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L2 normalization: unit vector…

Topic 4

📊 BoW vs TF-IDF Comparison

⭐ | Feature | Bag of Words | TF-IDF | |---------|-------------|--------| | Values | Raw…

Topic 5

❓ Quiz — 5 MCQs

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A) Grammar check

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B) Important words ko identify…

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C) Translation

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D) Image processing

Topic 6

🔗 Navigation

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Comparison

📊 BoW vs TF-IDF Comparison

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Values: Raw counts

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Common words: High values (noise)

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Rare words: Low values

Quick Quiz

Quiz — Question 1

📊 Topic 06: Bag of Words & TF-IDF ka sabse sahi definition kya hai?

Complete! 🎉

📊 Topic 06: Bag of Words & TF-IDF Complete!

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