When building an AI agent powered by Retrieval-Augmented Generation (RAG), you quickly face a tough trade-off:
๐ Retrieve too few documents โ you miss the key info.
๐ Retrieve too many โ your LLM drowns in irrelevant context.
The solution? A semantic reranker that reorders results and keeps only the passages that truly matter.
In my latest article, I share:
๐น The โrecall vs context windowโ problem
๐น Why combining vector search with BM25 boosts accuracy
๐น The details of my open-source C# implementation
๐น A concrete NLP pipeline with tokenization, lemmatization, and stop-words
๐น The improvements in relevance and token cost
๐ Open-source project on GitHub: https://lnkd.in/dJjp59zk
๐ Full article here: https://lnkd.in/db7TDXh6