Core AI

RAG & Vector Search

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

4,887
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 (1,423) Articles (756)Blog Posts (528)Tutorials (93)Research Papers (45)News (1)
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How to Debug RAG Hallucinations: Building Semantic Observability for Production AI
Dev.to · ping wang 🔍 RAG & Vector Search ⚡ AI Lesson 3h ago
How to Debug RAG Hallucinations: Building Semantic Observability for Production AI
Learn how to build semantic observability for production RAG systems to catch hallucinations and irrelevant responses before users notice.
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Your RAG Pipeline Hallucinates Because It Never Checks Its Own Work
Dev.to · Austin Vance 🔍 RAG & Vector Search ⚡ AI Lesson 4h ago
Your RAG Pipeline Hallucinates Because It Never Checks Its Own Work
Build a corrective RAG pipeline with LangGraph that grades retrieval quality, rewrites bad queries, and generates cited answers.
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Salesforce Agentforce and Basic Terminology (RAG, Grounding, Context Variables, Hybrid Search)
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 10h ago
Salesforce Agentforce and Basic Terminology (RAG, Grounding, Context Variables, Hybrid Search)
Salesforce defines Agentforce as a suite of autonomous, AI-driven digital workers that augment employees and enhance customer experiences… Continue reading on M
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InfoQ AI/ML 🔍 RAG & Vector Search ⚡ AI Lesson 13h ago
Presentation: Graph RAG: Building Smarter Retrieval Workflows with Knowledge Graphs
Cassie Shum discusses the architectural evolution of GraphRAG and why data foundations are critical for advanced AI workflows. She explains how traditional vect
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GraphRAG: What entity-first retrieval means for SEO
Search Engine Land 🔍 RAG & Vector Search ⚡ AI Lesson 13h ago
GraphRAG: What entity-first retrieval means for SEO
GraphRAG explains why AI is shifting from isolated text to connected knowledge, and what that means for AI search optimization.
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When “Smart” Parsers Fail: Building a Hallucination-Resistant RAG System for the Constitution of…
Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 14h ago
When “Smart” Parsers Fail: Building a Hallucination-Resistant RAG System for the Constitution of…
A case study in why deterministic engineering sometimes beats expensive AI Continue reading on Medium »
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Semantic Observability: Engineering Reliability for Production RAG
Dev.to · Dumebi Okolo 🔍 RAG & Vector Search ⚡ AI Lesson 14h ago
Semantic Observability: Engineering Reliability for Production RAG
It is a noticeable thing when a microservice fails. It is either a null pointer exception in a Java...
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Stale RAG vs. expensive RAG: how to cache RAG context without serving outdated answers
Dev.to · Vectorlink Labs 🔍 RAG & Vector Search ⚡ AI Lesson 15h ago
Stale RAG vs. expensive RAG: how to cache RAG context without serving outdated answers
If you run a RAG system in production, you eventually hit a dilemma that has nothing to do with your...
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When RAG Outperforms Fine-Tuning in Real AI Projects | A Practical Guide
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 16h ago
When RAG Outperforms Fine-Tuning in Real AI Projects | A Practical Guide
Explore the practical differences between RAG and fine-tuning, understand when each approach works best and build more reliable AI apps. Continue reading on Med
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 17h ago
Your RAG System Is Lying to You in Production
14 silent killers — why they happen, where they hide, and exactly how to fix them before they destroy user trust Continue reading on Medium »
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Why vector-only RAG is weak for coding agents
Dev.to · lorismascio17 🔍 RAG & Vector Search ⚡ AI Lesson 17h ago
Why vector-only RAG is weak for coding agents
Building Droste: a local structural + semantic code-memory engine for MCP agents AI coding agents...
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RAG Evaluation: The Part Nobody Talks About When Building RAG Systems
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 18h ago
RAG Evaluation: The Part Nobody Talks About When Building RAG Systems
When I finished building my first RAG pipeline, I felt good about it. Continue reading on Medium »
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RAG Is Not a Feature. It's a System, and These Are the Parts Nobody Demos.
Dev.to · Marketing wizr 🔍 RAG & Vector Search ⚡ AI Lesson 18h ago
RAG Is Not a Feature. It's a System, and These Are the Parts Nobody Demos.
Retrieval-Augmented Generation demos beautifully. Embed your documents, run a similarity search, drop...
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What Is RAG? The AI Technology That Makes ChatGPT Smarter Without Retraining
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 20h ago
What Is RAG? The AI Technology That Makes ChatGPT Smarter Without Retraining
Large Language Models are incredibly powerful — but they have a major limitation. Retrieval-Augmented Generation (RAG) is changing that by… Continue reading on
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RAG Sistemlerini “Kara Kutu” Olmaktan Çıkarmak: Local-First Bir Gözlemlenebilirlik Aracı
Medium · Python 🔍 RAG & Vector Search ⚡ AI Lesson 21h ago
RAG Sistemlerini “Kara Kutu” Olmaktan Çıkarmak: Local-First Bir Gözlemlenebilirlik Aracı
Bir RAG sistemi kurdunuz. Her şey harika çalışıyor, dokümanlar doğru geliyor, LLM güzel cevaplar veriyor… Ta ki ilk gerçek kullanıcılar… Continue reading on Med
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RAG Sistemlerini “Kara Kutu” Olmaktan Çıkarmak: Local-First Bir Gözlemlenebilirlik Aracı
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 21h ago
RAG Sistemlerini “Kara Kutu” Olmaktan Çıkarmak: Local-First Bir Gözlemlenebilirlik Aracı
Bir RAG sistemi kurdunuz. Her şey harika çalışıyor, dokümanlar doğru geliyor, LLM güzel cevaplar veriyor… Ta ki ilk gerçek kullanıcılar… Continue reading on Med
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ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 23h ago
One Retrieval to Cover Them All: Co-occurrence-Aware Knowledge Base Reorganization for Session-Level RAG
arXiv:2606.31156v1 Announce Type: cross Abstract: RAG systems retrieve documents optimized for answering one query at a time. Yet enterprise users arrive with s
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Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On
Subtitle: Understanding the fatal flaws of linear Retrieve-and-Generate pipelines — and why the industry is moving to Agentic workflows. Continue reading on Med
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Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On
Subtitle: Understanding the fatal flaws of linear Retrieve-and-Generate pipelines — and why the industry is moving to Agentic workflows. Continue reading on Med
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Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
Understanding the Limits of Linear RAG — and Why Agentic Workflows Are Catching On
Subtitle: Understanding the fatal flaws of linear Retrieve-and-Generate pipelines — and why the industry is moving to Agentic workflows. Continue reading on Med
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Why you shouldn’t search your documents directly with AI
Medium · Programming 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
Why you shouldn’t search your documents directly with AI
Everyone’s first retrieval-augmented system looks the same: chop the documents into pieces, turn each piece into a vector, search the… Continue reading on Mediu
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From Traditional RAG to Agentic RAG
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
From Traditional RAG to Agentic RAG
Traditional RAG systems typically rely on a predefined retrieval pipeline. Continue reading on Medium »
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Your AI Keeps Making Things Up. RAG Is How You Make It Use Real Facts Instead.
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
Your AI Keeps Making Things Up. RAG Is How You Make It Use Real Facts Instead.
You ask an AI a question about your own company’s policy, and it answers — confidently, fluently, and completely wrong. It invented a… Continue reading on Mediu
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Why Your RAG System Needs Hybrid Search (And How to Actually Implement It)
Dev.to · AlaiKrm 🔍 RAG & Vector Search ⚡ AI Lesson 1d ago
Why Your RAG System Needs Hybrid Search (And How to Actually Implement It)
Vector similarity search is powerful but it has a well-known weakness: exact term matching. If a user...
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ArXiv cs.AI 🔍 RAG & Vector Search 📄 Paper ⚡ AI Lesson 1d ago
Covering the Unseen: Information Demand Coverage Optimization for Retrieval-Augmented Generation
arXiv:2606.29328v1 Announce Type: cross Abstract: Retrieval-augmented generation (RAG) typically treats context selection as ranking chunks against a single que
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Evaluation Metrics for RAG: Measure Retrieval, Generation, and End-to-End Quality With Numbers That…
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Evaluation Metrics for RAG: Measure Retrieval, Generation, and End-to-End Quality With Numbers That…
Last week we compressed retrieved chunks so the model receives only the sentences that matter. Continue reading on Operations Research Bit »
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Evaluation Metrics for RAG: Measure Retrieval, Generation, and End-to-End Quality With Numbers That…
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Evaluation Metrics for RAG: Measure Retrieval, Generation, and End-to-End Quality With Numbers That…
Last week we compressed retrieved chunks so the model receives only the sentences that matter. Continue reading on Operations Research Bit »
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I WAS TIRED OF FIVE TABS AT 2AM. SO I BUILT A RAG PIPELINE.
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
I WAS TIRED OF FIVE TABS AT 2AM. SO I BUILT A RAG PIPELINE.
It’s 2am. A crash spike just hit production. You’ve got Crashlytics open in one tab, GitHub Issues in another, the release notes doc in a… Continue reading on M
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When Does HyDE Help RAG? I Tested 3 Query Types and It Failed on Two
Medium · AI 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
When Does HyDE Help RAG? I Tested 3 Query Types and It Failed on Two
I tested HyDE Retrieval vs Standard vector search on semantic, proprietary, and keyword queries. HyDE won one and quietly made 2 worse. Continue reading on Towa
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When Does HyDE Help RAG? I Tested 3 Query Types and It Failed on Two
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
When Does HyDE Help RAG? I Tested 3 Query Types and It Failed on Two
I tested HyDE Retrieval vs Standard vector search on semantic, proprietary, and keyword queries. HyDE won one and quietly made 2 worse. Continue reading on Towa
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When Does HyDE Help RAG? I Tested 3 Query Types and It Failed on Two
Medium · Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
When Does HyDE Help RAG? I Tested 3 Query Types and It Failed on Two
I tested HyDE Retrieval vs Standard vector search on semantic, proprietary, and keyword queries. HyDE won one and quietly made 2 worse. Continue reading on Towa
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3 non-obvious engineering challenges I learned while building my latest RAG application:
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
3 non-obvious engineering challenges I learned while building my latest RAG application:
Chunking isn’t “one size fits all.” Continue reading on Medium »
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Self-RAG (Self-Reflective RAG)
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Self-RAG (Self-Reflective RAG)
Problems with Traditional RAG Continue reading on Medium »
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“RAG Is Dead!”
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
“RAG Is Dead!”
If you’ve opened LinkedIn or YouTube recently, you’ve probably seen headlines like : Continue reading on Medium »
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“RAG Is Dead!”
Medium · LLM 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
“RAG Is Dead!”
If you’ve opened LinkedIn or YouTube recently, you’ve probably seen headlines like : Continue reading on Medium »
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Building an AI-Powered RAG Assistant for Monitoring Student Performance
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Building an AI-Powered RAG Assistant for Monitoring Student Performance
Educational institutions are producing more digital learning material than ever before, yet many instructors still struggle to answer a… Continue reading on Med
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The Feedback We Collected and Never Read, and How RAG Changed That
Medium · Machine Learning 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
The Feedback We Collected and Never Read, and How RAG Changed That
I used the idea behind RAG chatbots to make a pile of survey comments actually answer questions. Continue reading on Nothingaholic »
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RAG Architecture Deep Dive — The Full Pipeline Explained
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
RAG Architecture Deep Dive — The Full Pipeline Explained
Imagine you’re using an AI assistant at work and ask: Continue reading on Medium »
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The Citation Passed. The Evidence Failed.
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
The Citation Passed. The Evidence Failed.
Why grounded RAG answers still need evidence eligibility before they support production decisions Continue reading on Medium »
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Your RAG Pipeline Is Probably Useless. Here’s a Better Alternative
KDnuggets 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Your RAG Pipeline Is Probably Useless. Here’s a Better Alternative
Learn what to reach for when retrieval-augmented generation fails in production.
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Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
The Difference Between RAG, Agents, and Tool Calling — Proven With One Order Cancellation
Let’s Skip the Flowchart Continue reading on Medium »
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Why learn RAG?
Medium · NLP 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Why learn RAG?
RAG Explained Simply: Embeddings, Vector Databases, Better Retrieval, Evaluation, and the Basic Components You Need to Know Continue reading on Medium »
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Why learn RAG?
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Why learn RAG?
RAG Explained Simply: Embeddings, Vector Databases, Better Retrieval, Evaluation, and the Basic Components You Need to Know Continue reading on Medium »
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DCD: The RAG Architecture That Finally Admits Your Knowledge Base Is a Mess
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
DCD: The RAG Architecture That Finally Admits Your Knowledge Base Is a Mess
A new RAG design paper argues that enterprise retrieval should stop searching the whole document swamp at once and start by asking a… Continue reading on Medium
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RAG Is not broken but your pipeline is
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
RAG Is not broken but your pipeline is
When the cost conversation hit our Java stack, we started questioning everything about how we were feeding context to our models — and… Continue reading on Arti
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Document Strategy in RAG Systems: Which Data, When, and How Should It Be Processed?
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Document Strategy in RAG Systems: Which Data, When, and How Should It Be Processed?
No matter how advanced the AI, the rule stays the same: without data literacy there is no right context, and without right context there… Continue reading on Me
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Vector Store Operations: What Keeps RAG Retrieval Correct in Production
Medium · RAG 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Vector Store Operations: What Keeps RAG Retrieval Correct in Production
Index lifecycle management, embedding refresh, tenant isolation, hybrid retrieval, and metadata controls for production RAG systems. Continue reading on Medium
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Vector Databases — The Missing Piece in the RAG Puzzle
Medium · Programming 🔍 RAG & Vector Search ⚡ AI Lesson 2d ago
Vector Databases — The Missing Piece in the RAG Puzzle
Vector databases store meaning-numbers and find close matches — the retrieval shelf behind most RAG systems. Continue reading on Medium »
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