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Kuriko Iwai

Kuriko Iwai

Machine Learning Engineer | Building Agentic AI Pipeline | Ex-Meta | Join Newsletter => https://shorturl.at/2SXIW | Visit my website => https://kuriko-iwai.com

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How to Architect Semantic Chunking Pipelines for High-Performance RAG

Master critical chunking strategies for RAG to enhance retrieval accuracy and context retention

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Introduction

While Retrieval-Augmented Generation (RAG) has become the gold standard for grounding AI in private data, the quality of its output is only as good as the information it retrieves.

To ensure the model receives the most relevant context, one must move beyond simple data ingestion and focus on carefully crafted retrieval pipelines.

At the heart of this process lies chunking, a critical technique for breaking down large datasets into digestible, semantically meaningful segments (chunks).

In this article, I’ll explore the underlying mechanisms of chunking and evaluate the major strategies used to optimize performance in modern AI applications.

Table of Contents

What is Chunking
∘ Why Chunking Matters

Comparative Analysis: 5 Industry-Standard Chunking Strategies
∘ Sample Text
1. Fixed-Size Chunking
∘ Pros
∘ Best For
∘ Practical Implementation
∘ Resulting Chunks

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Kuriko Iwai
Kuriko Iwai

Written by Kuriko Iwai

Machine Learning Engineer | Building Agentic AI Pipeline | Ex-Meta | Join Newsletter => https://shorturl.at/2SXIW | Visit my website => https://kuriko-iwai.com