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title: "Day 3: Hybrid Search"
isLesson: true
weight: 4
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{{< date >}} Day 3 {{< /date >}}

# Hybrid Search

Combine dense and sparse signal for precision and recall.

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## Today’s path

1. Sparse Vectors and Inverted Indexes
2. Keyword‑based search demo
3. Hybrid Search with Score Fusion
4. Demo: Implementing a Hybrid Search System
5. Project: Building a Hybrid Search Engine

You’ll build a hybrid engine and validate gains over dense‑only or sparse‑only search.