Sat.May 03, 2025

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How to Make a RAG Application With LangChain4j

The Polyglot Developer

Retrieval-augmented generation, or RAG, introduces some serious capabilities to your large language models (LLMs). These applications can answer questions about your specific corpus of knowledge, while leveraging all the nuance and sophistication of a traditional LLM. This tutorial will take you through the ins and outs of creating a Q&A chatbot using RAG.

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It's a Trap! The Two Generals' Problem

Particular Software

In distributed systems, coordination is hardreally hardespecially when both parties depend on mutual confirmation to proceed, but theres no guarantee their messages will arrive. This classic dilemma is known as the Two Generals Problem. Like most problems in computer science, its easier to understand when explained with lasers, spaceships, and sarcastic smugglers.

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