Core AI

RAG & Vector Search

Retrieval-augmented generation, vector databases, embeddings and semantic search

4,922
lessons
Skills in this topic
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RAG Basics
beginner
Chunk documents with LangChain or LlamaIndex
Vector Stores
intermediate
Set up Pinecone, Weaviate, or pgvector
RAG Evaluation
intermediate
Run RAGAS evaluation on a RAG pipeline
Advanced RAG
advanced
Build a hybrid BM25 + dense retrieval pipeline
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All Reads (1,457) Articles (779)Blog Posts (531)Tutorials (96)Research Papers (49)News (2)
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Evaluation and Observability: How to Know Your RAG System Is Failing Before Your Users Tell You
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Evaluation and Observability: How to Know Your RAG System Is Failing Before Your Users Tell You
Advanced RAG Series — Part 5 Continue reading on Medium »
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Beating “Lost in the Middle”: Unified Graph RAG on PostgreSQL
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Beating “Lost in the Middle”: Unified Graph RAG on PostgreSQL
Our evaluation shows that by substituting naive chunk-based vector lookups with relationally injected context, the model’s $F_1$… Continue reading on Medium »
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How I Evaluated My Own RAG Pipeline (And Found Out It Was Worse Than I Thought)
Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
How I Evaluated My Own RAG Pipeline (And Found Out It Was Worse Than I Thought)
I had a RAG system that “worked.” Then I measured it properly — and found a bug that was silently throwing away 70% of my best retrieved… Continue reading on Me
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Building a RAG Pipeline from Scratch: WorldWar-II Edition
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Building a RAG Pipeline from Scratch: WorldWar-II Edition
Or: How I taught an LLM to read Wikipedia and answer questions without hallucinating Continue reading on Medium »
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Scaling RAG Applications in Production: Lessons Beyond the Demo
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Scaling RAG Applications in Production: Lessons Beyond the Demo
Retrieval-Augmented Generation (RAG) has become one of the most popular patterns for building AI applications. A typical RAG pipeline… Continue reading on Mediu
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RAG Is a Knowledge Supply Chain
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG Is a Knowledge Supply Chain
When teams first start talking about RAG, the conversation almost always sounds too simple. Continue reading on Medium »
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
The RAG Interview Questions Nobody Prepares For (Until It’s Too Late)
Everyone can define retrieval-augmented generation. Far fewer can survive the second question. Here’s the map I built after watching too… Continue reading on Me
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The Lead Engineer’s Code Review Checklist for Agentic RAG Systems
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
The Lead Engineer’s Code Review Checklist for Agentic RAG Systems
Reviewing RAG and agentic code is fundamentally different from traditional software review. You aren’t just checking for syntax and logic… Continue reading on M
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Inside RAG: How AI Actually “Looks Things Up” Before Answering
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Inside RAG: How AI Actually “Looks Things Up” Before Answering
Subtitle: A simple mental model for Retrieval-Augmented Generation without the jargon fog Continue reading on Medium »
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Vector Store Optimization & Metadata Engineering (Data Science / AI)
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Vector Store Optimization & Metadata Engineering (Data Science / AI)
Why Most RAG Systems Fail at Scale (And How Enterprise Teams Fix It) Continue reading on Medium »
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Vector Store Optimization & Metadata Engineering (Data Science / AI)
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Vector Store Optimization & Metadata Engineering (Data Science / AI)
Why Most RAG Systems Fail at Scale (And How Enterprise Teams Fix It) Continue reading on Medium »
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From Scratch to Agentic: A Hands-On Journey Through Applied RAG Systems
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
From Scratch to Agentic: A Hands-On Journey Through Applied RAG Systems
In the rapidly evolving world of Generative AI, the “Hello World” phase is officially over. Developers are no longer satisfied with basic… Continue reading on M
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When Your RAG System Confidently Invents a Drug Dosage
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
When Your RAG System Confidently Invents a Drug Dosage
What building a clinical RAG system taught me about retrieval, evaluation, and the gap between “it works” and “I trust it” Continue reading on Medium »
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Towards Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Dispatching the Parsed RAG Question: Chunk Strategy, Model Tier, Activations, Audit
Enterprise Document Intelligence [Vol.1 #6c] - The decisions the parser makes on top of the user string, using the document’s profile: dispatch, activations, fu
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The Anatomy of a Production-Ready RAG System
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
The Anatomy of a Production-Ready RAG System
Retrieval-Augmented Generation (RAG) has quickly become one of the most popular ways to build AI applications. Every week, I come across… Continue reading on Me
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Migrating RAG Pipelines: From a Python Prototype to an ASP.NET Core Backend
Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Migrating RAG Pipelines: From a Python Prototype to an ASP.NET Core Backend
How shifting a vector workload to ASP.NET Core and MongoDB Atlas exposes the complexities of vector index validation, data schema… Continue reading on Medium »
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Migrating RAG Pipelines: From a Python Prototype to an ASP.NET Core Backend
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Migrating RAG Pipelines: From a Python Prototype to an ASP.NET Core Backend
How shifting a vector workload to ASP.NET Core and MongoDB Atlas exposes the complexities of vector index validation, data schema… Continue reading on CodeToDep
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RAG Without the Hype: What Retrieval-Augmented Generation Actually Takes to Work in Production
Medium · NLP 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG Without the Hype: What Retrieval-Augmented Generation Actually Takes to Work in Production
Chunking, embedding, and retrieval each have failure modes that the tutorials skip. Continue reading on Medium »
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RAG Without the Hype: What Retrieval-Augmented Generation Actually Takes to Work in Production
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG Without the Hype: What Retrieval-Augmented Generation Actually Takes to Work in Production
Chunking, embedding, and retrieval each have failure modes that the tutorials skip. Continue reading on Medium »
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RAG (Retrieval-Augmented Generation) Nədir? — Nə Üçün İstifadə Olunur və Necə İşləyir
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG (Retrieval-Augmented Generation) Nədir? — Nə Üçün İstifadə Olunur və Necə İşləyir
Təsəvvür edin ki, dünyada ən ağıllı mütəxəssisi işə götürdünüz. O hər şeyi bilir — tarix, elm, texnologiya, fəlsəfə. Amma bir problemi var… Continue reading on
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RAG (Retrieval-Augmented Generation) Nədir? — Nə Üçün İstifadə Olunur və Necə İşləyir
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG (Retrieval-Augmented Generation) Nədir? — Nə Üçün İstifadə Olunur və Necə İşləyir
Təsəvvür edin ki, dünyada ən ağıllı mütəxəssisi işə götürdünüz. O hər şeyi bilir — tarix, elm, texnologiya, fəlsəfə. Amma bir problemi var… Continue reading on
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Your RAG chatbot is lying about your product
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Your RAG chatbot is lying about your product
Most teams that deploy RAG in customer service treat the retrieval layer as a solved problem. They connect the vector store, wire up the… Continue reading on Ve
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Demystifying RAG in Telecom: A Deep Dive into Graph, Vector, and Hybrid Pipelines for O-RAN
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Demystifying RAG in Telecom: A Deep Dive into Graph, Vector, and Hybrid Pipelines for O-RAN
There is no one-size-fits-all “best” RAG pipeline for O-RAN; the ideal architecture depends entirely on your specific operational… Continue reading on Medium »
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Why Your RAG Pipeline Will Break
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Why Your RAG Pipeline Will Break
I Tested RAG at 10 Million Documents. Here’s What Nobody Tells You About Scale. Continue reading on Medium »
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What Is RAG? The Technology That Lets AI Use Information It Was Never Trained On — Part 14
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
What Is RAG? The Technology That Lets AI Use Information It Was Never Trained On — Part 14
One of the biggest limitations of AI is that it can’t automatically know about information created after its training. So how do modern AI… Continue reading on
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Understanding Retrieval-Augmented Generation (RAG): How Modern AI Finds Answers Instead of Making…
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Understanding Retrieval-Augmented Generation (RAG): How Modern AI Finds Answers Instead of Making…
Learn how Retrieval-Augmented Generation (RAG) combines search and AI generation to build more accurate, trustworthy applications. Continue reading on Medium »
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Understanding Retrieval-Augmented Generation (RAG): How Modern AI Finds Answers Instead of Making…
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Understanding Retrieval-Augmented Generation (RAG): How Modern AI Finds Answers Instead of Making…
Learn how Retrieval-Augmented Generation (RAG) combines search and AI generation to build more accurate, trustworthy applications. Continue reading on Medium »
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Your RAG App Will Fail in Production. Here’s the Architecture That Won’t.
Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Your RAG App Will Fail in Production. Here’s the Architecture That Won’t.
I built a 9-service, multi-tenant RAG system — with hybrid search, automated evaluation, and Kubernetes auto-scaling — and open-sourced… Continue reading on Med
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Introduction to RAG
Medium · ChatGPT 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Introduction to RAG
You ask your chatbot a generic question. It answers correctly. Continue reading on Medium »
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Introduction to RAG
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Introduction to RAG
You ask your chatbot a generic question. It answers correctly. Continue reading on Medium »
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Stop Stuffing the Prompt: The Next RAG Debate Is Whether AI Should Search or Think
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Stop Stuffing the Prompt: The Next RAG Debate Is Whether AI Should Search or Think
For the last few years, the default fix for a shaky AI answer has been simple: give the model more context. Continue reading on Medium »
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My RAG Said We’re Compatible, So I Went on This Date
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
My RAG Said We’re Compatible, So I Went on This Date
It was drizzling steadily one afternoon, and I was dipping my feet in a puddle on my balcony while tapping furiously to a nice gentleman… Continue reading on Me
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Fixed-Size Chunking Is Killing Your RAG App. Here’s What Actually Works.
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Fixed-Size Chunking Is Killing Your RAG App. Here’s What Actually Works.
You asked your RAG app a question last week, got an answer that sounded confident and polished, and only later realized it was wrong in a… Continue reading on M
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Fixed-Size Chunking Is Killing Your RAG App. Here’s What Actually Works.
Medium · Programming 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Fixed-Size Chunking Is Killing Your RAG App. Here’s What Actually Works.
You asked your RAG app a question last week, got an answer that sounded confident and polished, and only later realized it was wrong in a… Continue reading on M
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What is RAG (Retrieval-Augmented Generation)? The Complete 2026 Guide
Medium · ChatGPT 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
What is RAG (Retrieval-Augmented Generation)? The Complete 2026 Guide
What is RAG (Retrieval-Augmented Continue reading on Medium »
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Your Local AI Is Dumb. Not Because of the Model. Because of What It Can’t See.
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Your Local AI Is Dumb. Not Because of the Model. Because of What It Can’t See.
RAG and MCP are the two things that turn a generic chat assistant into an AI that actually knows your business Continue reading on Towards AI »
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HyDE: The RAG Trick Where You Answer the Question BEFORE You Search
Dev.to · Devanshu Biswas 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
HyDE: The RAG Trick Where You Answer the Question BEFORE You Search
Here's a counterintuitive RAG trick: to find the right document, answer the question first — then...
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How I added semantic search to a resume matcher — and what the numbers showed
Dev.to · Azeez Roheem 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
How I added semantic search to a resume matcher — and what the numbers showed
Building a RAG pipeline with pgvector, text-embedding-3-small, and Neon into a production Next.js SaaS — the numbers, the tradeoffs, the code
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Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
I Have a CS Degree AND an MBA — Here’s Why Most RAG Projects Never Leave the Developer’s Laptop
The gap between a working demo and a real product isn’t technical. It’s strategic. Continue reading on Medium »
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
I Have a CS Degree AND an MBA — Here’s Why Most RAG Projects Never Leave the Developer’s Laptop
The gap between a working demo and a real product isn’t technical. It’s strategic. Continue reading on Medium »
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From Python to C++23: Cutting RAG Retrieval Latency from ~800ms to ~35ms
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
From Python to C++23: Cutting RAG Retrieval Latency from ~800ms to ~35ms
A production story about porting a FastAPI-based legal RAG system to C++23 with Drogon, Qdrant, and llama.cpp, with real benchmark numbers… Continue reading on
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Entity Resolution in Knowledge Graphs: The Math Behind Clean AI Context
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Entity Resolution in Knowledge Graphs: The Math Behind Clean AI Context
How similarity scores, graph relationships, and confidence thresholds help build reliable enterprise RAG systems. Continue reading on Medium »
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Dev.to AI 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG Rerank: the Highest-Leverage Upgrade to Your Retrieval Pipeline
If your RAG app sometimes answers from the wrong document even though the right one was in your database, the fix usually isn't a better embedding model — it's
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I’d never buy a managed RAG service again
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
I’d never buy a managed RAG service again
Eighteen months ago I was the person writing the vendor recommendation. We needed document search across a messy corpus: support tickets… Continue reading on Me
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
RAG Architectures: From Naive to Agentic (With Code)
Retrieval-Augmented Generation has come a long way from “embed, retrieve, generate.” Continue reading on Medium »
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Why RAG Exists: Grounding Generative AI with External Knowledge
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Why RAG Exists: Grounding Generative AI with External Knowledge
A practical introduction to Retrieval-Augmented Generation for engineers Continue reading on Medium »
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
From Script to System: Building a RAG Pipeline with LangChain, Gradio, and Prefect
I didn’t start this project with a clean architecture in mind. Continue reading on Medium »
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Building a RAG Pipeline from Scratch: Part 1 — Indexing
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2w ago
Building a RAG Pipeline from Scratch: Part 1 — Indexing
In the previous article, I introduced RAG and its three stages: indexing, retrieval, and generation. Continue reading on Medium »
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