Transforming search at Delivery Hero: A migration journey to OpenSearch Service with radial search

Source: Amazon.com· Sayan Das· August 4, 2026

In this post, we walk through how Delivery Hero migrated their semantic search infrastructure to Amazon OpenSearch Service, why they chose radial search over traditional k-nearest neighbor (k-NN) search, and the optimizations that made the system fast, cost-e…

This story was reported by Amazon.com. Read the full original article:

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