Tag: RAG
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Part 3: The Validation Layer — Reranking, Cross-Encoders, and Automated Evaluation
1. Introduction: Why Vector Search Alone Isn’t Enough In Part 2, we optimized our system for Recall—using expansion and routing to ensure the “needle” is somewhere in our top 50 results. However, in production, being “somewhere in the top 50” is a liability, not a feature. Vector search is fast—it takes milliseconds to retrieve candidates.…
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Part 2: The Multi-Step Retriever — Implementing Agentic Query Expansion
1. Introduction: The Death of the “Simple Search” In Part 1, we defined the blueprint for a production-grade Agentic RAG system. We moved away from passive retrieval toward a “reasoning-first” architecture. But even the best reasoning engine fails if the data fed into it is garbage. When a business user asks, “What’s our policy on…
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Building Production-Grade Agentic RAG: A Technical Deep Dive – Part 1
Beyond Fixed Windows — Agentic & ML-Based Chunking Introduction: The RAG Gap The promise of Retrieval-Augmented Generation (RAG) is compelling: ground large language models in enterprise data, reduce hallucinations, enable real-time knowledge updates. But in practice, most RAG systems fail silently. They fail not because embedding models are weak or vector databases are slow, but…
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The Ultimate Vector Database Showdown: A Performance and Cost Deep Dive on AWS
In the age of AI, Retrieval-Augmented Generation (RAG) is king. The engine powering this revolution? The vector database. Choosing the right one is critical for building responsive, accurate, and cost-effective AI applications. But with a growing number of options, which one truly delivers? To answer this, we put five popular AWS-hosted vector database solutions to…