<ul data-eligibleForWebStory="false">Smart search systems use embeddings and kNN search to understand human intent and provide accurate results.Embeddings translate words into numbers to capture their meaning, enabling computers to comprehend user queries better.The combination of embeddings and kNN search facilitates semantic search, allowing retrieval of semantically similar documents efficiently.The system leverages Elasticsearch with dense vector fields and HNSW for fast and accurate kNN searches, improving search performance at scale.