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📰 Hackernoon

23 articles · Updated every 3 hours · View all reads

All Articles 167,848Blog Posts 160,036Tech Tutorials 44,533Research Papers 32,781News 21,441 ⚡ AI Lessons
Your RAG Isn't Hallucinating. Your Retrieval Is Lying.
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Your RAG Isn't Hallucinating. Your Retrieval Is Lying.
When RAG gives a wrong answer, everyone blames the LLM. Usually the model was fine — retrieval handed it garbage. Here's how to catch it before users do.
Building a Self-Healing RAG Pipeline With LangGraph, LangChain, and LLM-as-Judge
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago
Building a Self-Healing RAG Pipeline With LangGraph, LangChain, and LLM-as-Judge
RAG systems can confidently generate answers that contradict their own retrieved context, with no errors anywhere to flag it. This article builds a self-healing
How to Build a Production RAG System on AWS From Scratch (Complete Beginner's Guide)
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
How to Build a Production RAG System on AWS From Scratch (Complete Beginner's Guide)
RAG is the most important AI pattern in enterprise right now. This complete beginner's guide walks you through building a production-ready RAG.
Your RAG System Might Be Confidently Wrong
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
Your RAG System Might Be Confidently Wrong
Most RAG confidence scores only describe the model output. They do not tell you whether the retrieved index was fresh, whether the source changed after indexing
A Practical Security Architecture for Retrieval-Augmented Generation
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
A Practical Security Architecture for Retrieval-Augmented Generation
This article argues that the primary security risks in Retrieval-Augmented Generation (RAG) systems often originate in the retrieval layer rather than the langu
The RAG Data-Flow Audit: A Practical Framework for Enterprise AI Teams
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
The RAG Data-Flow Audit: A Practical Framework for Enterprise AI Teams
A practical framework for auditing enterprise RAG pipelines before legal, security, or compliance teams approve AI agents.
What Production-Grade RAG Evaluation Should Look Like
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
What Production-Grade RAG Evaluation Should Look Like
This article argues that evaluating agentic RAG systems requires far more than a single faithfulness score. It explores a production-focused evaluation stack bu
What Two Years of Research Have Taught Us About Chunking for RAG
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago
What Two Years of Research Have Taught Us About Chunking for RAG
This deep dive argues that chunking is one of the most overlooked determinants of RAG performance. Drawing on recent research from Chroma, Anthropic, Jina AI, a
Backpressure, Cancellation, and Channels in WorkIt
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 3mo ago
Backpressure, Cancellation, and Channels in WorkIt
A naive RAG pipeline pulls 281 docs to deliver 25. Real backpressure pulls 40. How WorkIt paces the producer to consumer demand in Node.js & TypeScript.
Meet the Writer: Hacker Noon's Contributor Vineet Vijay, Lead AI Engineer
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 3mo ago
Meet the Writer: Hacker Noon's Contributor Vineet Vijay, Lead AI Engineer
Vineet Vijay found 40 K-mismatched vectors silently breaking his RAG system. Here's what he learned, and what he's writing about next.
Mean Pooling Was Hiding Prompt Injections in Our RAG Pipeline
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 3mo ago
Mean Pooling Was Hiding Prompt Injections in Our RAG Pipeline
RAG detectors fail because mean pooling averages out malicious signals in long documents. While a short attack gets diluted, the encoder’s raw hidden states cap
Embedding Staleness Is Probably Corrupting Your RAG System Right Now
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 3mo ago
Embedding Staleness Is Probably Corrupting Your RAG System Right Now
This article examines embedding staleness and index drift as overlooked failure modes in production Retrieval-Augmented Generation systems. Using a real-world R
The Real Final Boss of Production-Grade RAG Is the PDF
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 3mo ago
The Real Final Boss of Production-Grade RAG Is the PDF
Standard RAG systems often become hallucination engines because naive PDF parsing destroys document structure. We solved this by implementing layout-aware parti
Production RAG: The Five Decisions Behind Every System That Works
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 3mo ago
Production RAG: The Five Decisions Behind Every System That Works
This article breaks down the five critical decisions required to build effective RAG systems: whether to use retrieval at all, how to chunk and parse data, how
YouTube Told Me to Build a RAG System—So I Shipped One With Zero Dependencies
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 4mo ago
YouTube Told Me to Build a RAG System—So I Shipped One With Zero Dependencies
Frustrated by the complexity of existing RAG frameworks, the author built a lightweight, zero-dependency Node.js package that introduces an “agentic” feedback l
Docling Studio Earns a 67.76 Proof of Usefulness Score by Building a Visual Debugger for RAG Pipelines
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 4mo ago
Docling Studio Earns a 67.76 Proof of Usefulness Score by Building a Visual Debugger for RAG Pipelines
Docling Studio is an open-source visual debugger for RAG pipelines built on IBM's Docling. Instead of treating document extraction as a black box, it lets you s
How One Hidden Ignore Instructions Can Hijack Your Enterprise RAG
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 4mo ago
How One Hidden Ignore Instructions Can Hijack Your Enterprise RAG
The Threat: Retrieval-Augmented Generation (RAG) pipelines are vulnerable to Indirect Prompt Injection, where malicious instructions hidden in seemingly harmles
Cohere’s Multilingual Embedding Model for Search, Retrieval, and Recommendations
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 4mo ago
Cohere’s Multilingual Embedding Model for Search, Retrieval, and Recommendations
Learn how Cohere-embed-multilingual-v3.0 creates embeddings for 100+ languages to power semantic search, retrieval, and recommendation systems.
This Perplexity Embedding Model Understands Chunks in Context
Hackernoon 🔍 RAG & Vector Search ⚡ AI Lesson 5mo ago
This Perplexity Embedding Model Understands Chunks in Context
Learn how pplx-embed-context-v1-0.6b creates context-aware chunk embeddings for RAG systems with int8 efficiency, 32K context, and late chunking.