Automating search relevance tuning means going from “my NDCG score is low” to “here is a better search query” in minutes. The Amazon OpenSearch Service Search Relevance Agent accelerates search quality improvements. You describe the problem, and the agent investigates your behavioral data, runs sequenced evaluations, and generates an improved query validated against your search quality targets, all without leaving the UI.
In the previous post “Measuring and improving search quality with Amazon OpenSearch Service”, you learned how to capture behavioral signals with User Behavior Insights (UBI), run structured experiments with Search Relevance Workbench (SRW), and arrive at a real Normalized Discounted Cumulative Gain (NDCG) score. That gives you the diagnosis. Now comes the harder part: acting on it.
Improving search quality is a tedious, manual loop. A search engineer studies the dashboards, forms a hypothesis, rewrites the domain-specific language…

