---
title: "Advanced RAG Techniques"
id: advanced-rag-techniques
slug: "/advanced-rag-techniques"
---

# Advanced RAG Techniques

This section of documentation talks about advanced RAQ techniques you can implement with Haystack.

Read more about [Hypothetical Document Embeddings (HyDE)](advanced-rag-techniques/hypothetical-document-embeddings-hyde.mdx),

or check out one of our cookbooks 🧑‍🍳:

- [Using Hypothetical Document Embedding (HyDE) to Improve Retrieval](https://haystack.deepset.ai/cookbook/using_hyde_for_improved_retrieval)
- [Query Decomposition and Reasoning](https://haystack.deepset.ai/cookbook/query_decomposition)
- [Improving Retrieval by Embedding Meaningful Metadata](https://haystack.deepset.ai/cookbook/improve-retrieval-by-embedding-metadata)
- [Query Expansion](https://haystack.deepset.ai/cookbook/query-expansion)
- [Automated Structured Metadata Enrichment](https://haystack.deepset.ai/cookbook/metadata_enrichment)
- [Auto-Merging and Hierarchical Document Retrieval](https://haystack.deepset.ai/cookbook/auto_merging_retriever)
