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Similarity ≠ Relevance

A deep Dive into RAG

Most RAG systems rely on the misconception that similarity equals relevance, until Tosin Adekanye exposes why this leads to irrelevant answers and how understanding the nuances can transform your AI.
In this eye-opening episode, Tosin, a top data scientist working across regulated industries, explains why the common belief that more similar chunks always yield better results. She walks us through real-world failures of naive similarity-based retrieval, such as mixed signals from lengthy policy documents, and reveals how relevance-focused retrieval is the game-changer. You’ll discover:

  • How to distinguish between similarity and relevance in your data retrieval pipeline

  • Practical strategies for building relevance-aware RAG models, including metadata filtering, hierarchical chunking, and semantic context understanding

  • Why traditional fixed-size document splits often muddle meaning, and how to chunk by meaning instead

  • The role of relevance scoring models and guardian layers to ensure trustworthy responses in high-stakes sectors like healthcare and finance

  • Engineering tips for scaling AI workflows like dynamic routing, parallel processing, and balancing latency with accuracy


With her deep regulatory background and innovative mindset, Tosin shares concrete frameworks, from psychology-inspired selective attention to agentic routing, that elevate your RAG systems from mediocre to mission-critical.
Whether you’re developing AI for high-impact industries or eager to outsmart statistical noise, this episode provides the insights and tactics to prioritize relevance over mere similarity saving you countless hours, errors, and frustrations.
Perfect for AI engineers, data scientists, and enterprise decision-makers intent on deploying accurate, robust, and trustworthy language models. Don’t settle for surface-level retrieval; learn how to surface what truly matters.
Tosin Adekanye is a senior AI practitioner at Qatar Foundation, known for her expertise in building reliable, relevance-driven retrieval systems in highly regulated sectors.
Tune in to glimpse the future of intelligent information retrieval—where relevance reigns supreme and noise is eliminated before it reaches your models.
Relevance isn’t just a metric, it’s your secret weapon in true AI excellence.

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