The original title is: "Build a unified semantic layer across datasets with multi-dataset Topics in Amazon Quick"

Short summary

Amazon QuickSight's multi-dataset Topics feature builds a unified semantic layer across disparate data sources, enabling cross-dataset analytics without manual SQL. A built-in chat agent automatically generates queries using defined relationships between datasets. This tutorial demonstrates end-to-end implementation in a retail analytics scenario for practical business intelligence applications.

• •Multi-dataset Topics unify disparate data sources into a single semantic layer
• •Chat agent auto-generates cross-dataset queries using predefined relationships
• •Retail analytics walkthrough shows practical implementation and business value

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