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My learningData Engineering With AILesson 15
The Duplicate Documents Secretly Killing Your Data Quality — MinHash, SimHash & Embedding Dedup Explained

Lesson 15

The Duplicate Documents Secretly Killing Your Data Quality — MinHash, SimHash & Embedding Dedup Explained

Duplicate and near-duplicate documents silently reduce retrieval quality, increase storage costs, and confuse AI systems. Modern data pipelines use techniques like MinHash, SimHash, and embedding-based deduplication to detect redundant content, improve search relevance, and maintain cleaner, more reliable RAG datasets.

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Curriculum

25 lessons · 2h 0m

0/25 lessons done2h 0m left
  1. 04:58

    AI Is Transforming Data Engineer Roles: What’s Changing

    04:58

  2. 04:19

    The Data Engineer Role Just Split Into 4 Jobs — Which One Are You?

    04:19

  3. 04:34

    Writing SQL Is No Longer the Hardest Part of Being a Senior Data Engineer — Here’s What Is

    04:34

  4. 04:40

    Chunking Is the New Partitioning — The Data Engineering Decision That Makes or Breaks RAG

    04:40

  5. 04:26

    Fixed vs Recursive vs Semantic Chunking — Choosing the Right Strategy for Your AI Pipeline

    04:26

  6. 06:03

    Embedding Pipelines Explained — How Data Engineers Choose & Version Embedding Models

    06:03

  7. 07:01

    Your embedding model just got upgraded — how to re-embed billions of rows without downtime

    07:01

  8. 04:27

    CDC for Unstructured Data — The Ingestion Pattern Most Data Pipelines Miss

    04:27

  9. 08:17

    Vector Indexes for Data Engineers — HNSW vs IVF vs Flat Without the Math Degree

    08:17

  10. 09:51

    Pure Vector Search Is Dead — Why Hybrid Retrieval Is Now the Production Standard

    09:51

  11. 05:22

    Rerankers — The Low-Cost Pipeline Upgrade That Beats Bigger Embedding Models

    05:22

  12. 03:56

    Query Transformation as a Pipeline Stage — Rewriting Vague Questions Before Retrieval

    03:56

  13. 02:48

    Your RAG Gave a Wrong Answer — The Data Engineer’s Failure Tree for Debugging It

    02:48

  14. 05:18

    PDFs Are the New CSVs — Building Parsing Pipelines That Scale to Millions

    05:18

  15. 03:47

    The Duplicate Documents Secretly Killing Your Data Quality — MinHash, SimHash & Embedding Dedup Explained

    03:47

  16. 04:33

    The 5 AI Agents Every Self-Healing Data Pipeline Needs

    04:33

  17. 04:04

    Schema Drift That Fixes Itself — Letting AI Patch Your Pipeline Without a Ticket

    04:04

  18. 04:30

    Stop Measuring Uptime — The New SLA Every Senior Data Engineer Is Moving To

    04:30

  19. 05:11

    LangGraph + Airflow — The Production AI Agent Pattern Data Teams Are Shipping

    05:11

  20. 02:22

    How I Built a Complete Data Engineering Pipeline from a Teams Message Using Claude Code

    02:22

  21. 04:01

    12-Month Legacy Migration Done in 6 Weeks — The AI-Driven Playbook for Data Teams

    04:01

  22. 04:07

    Let Claude Write the Data Engineering Tests You Forgot — Prompt Patterns That Actually Work

    04:07

  23. 03:48

    Natural Language to SQL in Production — 3 Wins and 3 Disasters

    03:48

  24. 03:30

    Your Data Passed Every Test and Is Still Wrong — Semantic Data Validation Explained

    03:30

  25. 04:29

    Your LLM Bill Is About to Explode — Token Budgets as a First-Class Pipeline SLI

    04:29