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Coders In Hoods

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Course overview

Retrieval and Knowledge Systems

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1 · Building the index

1Embeddings in practice
Exercise answers
- Answer: Measure truncation and quantisation on legal text
- Answer: Add a commercial embedder (stretch)
2Chunking structured documents
3Vector indexes and databases
4Measuring retrieval

2 · Retrieval that reasons

5Hybrid search and reranking
6Agentic retrieval
7Knowledge graphs and GraphRAG
8Long context versus RAG

CapstoneA measured retrieval service for cases and reference documents Reference implementation

Answers Lesson 1: Embeddings in practice

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Core 60–90 min8 steps

Measure truncation and quantisation on legal text

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Next answer Add a commercial embedder (stretch)

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