Core AI

RAG & Vector Search

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

4,987
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 (1,521) Articles (825)Blog Posts (536)Tutorials (108)Research Papers (50)News (2)
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How to Fix “Vector Does Not Exist” in PostgreSQL pgvector (VECTOR1536)
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
How to Fix “Vector Does Not Exist” in PostgreSQL pgvector (VECTOR1536)
A beginner-friendly production guide for fixing SQL State 42704, enabling pgvector correctly, and building scalable semantic search… Continue reading on Medium
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Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Your RAG Didn’t “Break” at 500K Documents.
our Embedding Space Collapsed Under Density. Continue reading on Medium »
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Your RAG Didn’t “Break” at 500K Documents.
our Embedding Space Collapsed Under Density. Continue reading on Medium »
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Huzur Keşfi’nde Intent-Aware RAG ve RAG-to-SQL Mimarisi
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Huzur Keşfi’nde Intent-Aware RAG ve RAG-to-SQL Mimarisi
1. RAG Neden Kullanılıyor? Continue reading on Medium »
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RAG Is Not Dead. You’re Just Building It Wrong.
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG Is Not Dead. You’re Just Building It Wrong.
The real‑world playbook for engineers who want their RAG system to survive Monday morning. Continue reading on Towards AI »
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RAG Is Not Dead. You’re Just Building It Wrong.
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG Is Not Dead. You’re Just Building It Wrong.
The real‑world playbook for engineers who want their RAG system to survive Monday morning. Continue reading on Towards AI »
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RAG Is Not Dead. You’re Just Building It Wrong.
Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG Is Not Dead. You’re Just Building It Wrong.
The real‑world playbook for engineers who want their RAG system to survive Monday morning. Continue reading on Towards AI »
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Retrieval-Augmented Generation (RAG): A Complete Beginner-to-Advanced Guide
Artificial Intelligence is changing the way we search, learn, work, and build software. One of the most powerful concepts in modern AI is… Continue reading on M
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Retrieval-Augmented Generation (RAG) For Everyone!
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Retrieval-Augmented Generation (RAG) For Everyone!
From Fundamentals to Production-Ready Agentic RAG Systems Continue reading on Medium »
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RAG is Not Dead - It’s Just Becoming Agent Memory
Dev.to · Dhruv Joshi 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG is Not Dead - It’s Just Becoming Agent Memory
RAG is not dead. It just got promoted. For years, retrieval-augmented generation helped apps pull the...
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Your RAG works on Claude. Does it work on Gemma 4? Drift detection across model families.
Dev.to · Mukunda Rao Katta 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Your RAG works on Claude. Does it work on Gemma 4? Drift detection across model families.
A reproducible experiment: swap the generator in a working RAG pipeline from Claude Sonnet 4.5 to Gemma 4 9B, and see which production drift dimensions actually
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The Hidden Layer: Why MDEngine is the Secret to RAG-Ready Enterprise Knowledge
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
The Hidden Layer: Why MDEngine is the Secret to RAG-Ready Enterprise Knowledge
The AI world is obsessed with models. Everyone talks about GPUs, token windows, agents, reasoning, and billion-parameter architectures. Continue reading on Medi
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RAG is not a default. Here’s when it actually earns its place.
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG is not a default. Here’s when it actually earns its place.
Most AI teams I’ve talked to in the last year have one reflex when they’re building anything that touches data: slap RAG on it. Continue reading on Medium »
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ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 1mo ago
From Clouds to Hallucinations: Atmospheric Retrieval Hijacking in Remote Sensing Vision-Language RAG
arXiv:2605.07273v1 Announce Type: cross Abstract: Multimodal RAG systems increasingly rely on vision-language retrievers to ground visual queries in external te
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ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 1mo ago
LARAG: Link-Aware Retrieval Strategy for RAG Systems in Hyperlinked Technical Documentation
arXiv:2605.07517v1 Announce Type: cross Abstract: Retrieval-Augmented Generation (RAG) enhances the factual grounding of Large Language Models by conditioning t
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Reranking Explained: Why the First Retrieved Chunk Isn’t Always the Best
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Reranking Explained: Why the First Retrieved Chunk Isn’t Always the Best
A beginner-friendly guide to how reranking improves RAG accuracy by sorting retrieved chunks smarter — not just faster. Continue reading on Medium »
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Reranking Explained: Why the First Retrieved Chunk Isn’t Always the Best
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Reranking Explained: Why the First Retrieved Chunk Isn’t Always the Best
A beginner-friendly guide to how reranking improves RAG accuracy by sorting retrieved chunks smarter — not just faster. Continue reading on Medium »
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RAG - Chunking
Dev.to · Ramya Perumal 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG - Chunking
What is chunking Chunking is the process of breaking data into smaller pieces called...
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Integrating Vector Database Connectors for Improved RAG Workflows
Dev.to · AGIorBust 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Integrating Vector Database Connectors for Improved RAG Workflows
Recent updates to AI orchestration platforms have introduced native connectors for popular vector...
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When RAG Is Not Enough: “Searching Semantically” vs “But the Business Needs Proof”
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
When RAG Is Not Enough: “Searching Semantically” vs “But the Business Needs Proof”
The next generation of enterprise AI is expected to do more than retrieve knowledge. It is expected to inspect reality. Continue reading on Medium »
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Building a Production RAG Backend for Enterprise Knowledge Bases: Architecture, Decisions, and…
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Building a Production RAG Backend for Enterprise Knowledge Bases: Architecture, Decisions, and…
How I designed and built a retrieval-augmented generation system that ingests from Document360 and SharePoint, stores embeddings in Aurora… Continue reading on
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Building a Production RAG Backend for Enterprise Knowledge Bases: Architecture, Decisions, and…
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Building a Production RAG Backend for Enterprise Knowledge Bases: Architecture, Decisions, and…
How I designed and built a retrieval-augmented generation system that ingests from Document360 and SharePoint, stores embeddings in Aurora… Continue reading on
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Chunking Strategies: Why How You Split Documents Makes or Breaks Your RAG System
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Chunking Strategies: Why How You Split Documents Makes or Breaks Your RAG System
Advanced RAG Series — Part 2 Part 1 covered RAG fundamentals — what it is, how data flows, and when to use it. This post goes deep on… Continue reading on Mediu
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RAG Radar — Weekly Signals
Medium · Startup 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG Radar — Weekly Signals
What 128 Real RAG Discussions Revealed About AI Reliability Continue reading on Medium »
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RAG Radar — Weekly Signals
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG Radar — Weekly Signals
What 128 Real RAG Discussions Revealed About AI Reliability Continue reading on Medium »
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RAG Radar — Weekly Signals
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
RAG Radar — Weekly Signals
What 128 Real RAG Discussions Revealed About AI Reliability Continue reading on Medium »
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Chunking Strategy: The Most Underrated Part of RAG
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Chunking Strategy: The Most Underrated Part of RAG
If embeddings are the brain of a retrieval system, chunking is the spine. Continue reading on Medium »
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Part 3: Types of RAG
Dev.to · Bhargav Patel 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Part 3: Types of RAG
Now that we understand what RAG is and how the ingestion and retrieval pipeline works, the next...
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Part 2: RAG Architecture: How Retrieval-Augmented Generation Actually Works
Dev.to · Bhargav Patel 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Part 2: RAG Architecture: How Retrieval-Augmented Generation Actually Works
Now that we understand what RAG is and why it is so popular, let’s understand how RAG actually works...
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Beyond Keywords: Mastering HyDE for Smarter Retrieval 🧠
Dev.to · Rushank Savant 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Beyond Keywords: Mastering HyDE for Smarter Retrieval 🧠
If you’ve ever built a RAG system, you’ve likely felt the frustration of the "Mismatch Problem". You...
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Beyond Keywords: Mastering HyDE for Smarter Retrieval
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Beyond Keywords: Mastering HyDE for Smarter Retrieval
< Small-to-Big Retrieval Continue reading on Medium »
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Vectorless RAG vs every flavour of vector RAG: a head-to-head on real 10-Ks.
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Vectorless RAG vs every flavour of vector RAG: a head-to-head on real 10-Ks.
# I asked ten RAG pipelines the same 54 finance questions. Here’s where each one broke. Continue reading on Medium »
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Vectorless RAG vs every flavour of vector RAG: a head-to-head on real 10-Ks.
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Vectorless RAG vs every flavour of vector RAG: a head-to-head on real 10-Ks.
# I asked ten RAG pipelines the same 54 finance questions. Here’s where each one broke. Continue reading on Medium »
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Microsoft 365 Copilot Retrieval API — Part 3— RAG Internal working Indetailed
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Microsoft 365 Copilot Retrieval API — Part 3— RAG Internal working Indetailed
This is the Continution for part 2 — Click here Continue reading on Medium »
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Beyond the Training Cutoff - How RAG Gives AI a Living Memory
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Beyond the Training Cutoff - How RAG Gives AI a Living Memory
You’ve probably used AI tools and noticed it sometimes gets facts wrong, or says it doesn’t know about recent events. That’s because large… Continue reading on
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Day 3 - Chunking - RAG
Dev.to · Indumathi R 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Day 3 - Chunking - RAG
What is chunking ? It is one of the step in RAG pipeline. Dividing a large document into several...
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When Your AI Has Photographic Memory But No Understanding: Designing Curiosity-Driven Knowledge…
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
When Your AI Has Photographic Memory But No Understanding: Designing Curiosity-Driven Knowledge…
How I designed a system that transforms a passive RAG store into a self-aware, autonomously learning knowledge engine, without fine-tuning… Continue reading on
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Building a multi-tenant RAG pipeline with Postgres. Part 0: Overview
Dev.to · jasu.dev 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Building a multi-tenant RAG pipeline with Postgres. Part 0: Overview
Today I want to start with a series of articles describing my experience building a multi-tenant RAG...
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Chunking Explained: The Tiny Detail That Makes or Breaks RAG
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Chunking Explained: The Tiny Detail That Makes or Breaks RAG
A beginner-friendly guide to how chunking impacts retrieval quality, context accuracy, and overall RAG performance. Continue reading on Medium »
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Generation 2 — RAG-Augmented Models (2022–2023)
Dev.to · Raghavendra Govindu 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Generation 2 — RAG-Augmented Models (2022–2023)
Generation 2: RAG — The Era of Grounded Knowledge (2022–2023) In the first generation of AI, models...
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Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Most RAG failures don’t crash. They silently return bad answers. I built a repair layer for that.
There’s a specific kind of frustration that comes from watching a RAG pipeline return confident nonsense and having no idea where it went… Continue reading on M
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RAG Evaluation with a Local LLM: Comparing Vector Index and Knowledge Graph
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
RAG Evaluation with a Local LLM: Comparing Vector Index and Knowledge Graph
A demo to understand RAG evaluation metrics and see Vector Index vs Knowledge Graph retrieval in practice Continue reading on Medium »
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RAG_First AI Engine: Why RAG Alone Is Not Enough (And How to Build AI That Never Hallucinates)
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
RAG_First AI Engine: Why RAG Alone Is Not Enough (And How to Build AI That Never Hallucinates)
The Promise and the Problem Continue reading on Medium »
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A comparison of 3 document RAG methods : Google FileSearch, PageIndex and Vector DB
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
A comparison of 3 document RAG methods : Google FileSearch, PageIndex and Vector DB
Document RAG is used to ground the answers generated by an LLM to a given set of documents. Generally these documents will have domain… Continue reading on Medi
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Dev.to AI 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Your RAG can't answer 'why' -- GraphRAG finds what vector search misses
The question that broke my RAG pipeline I had a solid RAG setup. Embeddings, vector store, top-k retrieval, the whole thing. It handled factual lookups just fin
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When RAG Systems Need Guarantees: Applying Control Theory to Iterative Retrieval
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
When RAG Systems Need Guarantees: Applying Control Theory to Iterative Retrieval
How Lyapunov stability theory can provide formal convergence certificates for multi-hop retrieval — and why this matters for enterprise AI… Continue reading on
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Testing RAG Systems in Practice: How QA Changes When LLMs Enter the Stack
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Testing RAG Systems in Practice: How QA Changes When LLMs Enter the Stack
After spending over three and a half years in software testing-and recently getting hands-on with the RAGAS framework while evaluating… Continue reading on Medi
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Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Your RAG Pipeline Will Collapse at Scale. Here Are Top Production Patterns to Prevent That
By Jayan Nimna AI/ML Engineer Continue reading on Medium »
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