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Boosting search relevance: Automatic semantic enrichment in Amazon OpenSearch Serverless

Big Data Blog



AWS has introduced automatic semantic enrichment for Amazon OpenSearch Serverless, a feature that enhances search relevance by automatically converting text fields into semantic vector embeddings.

  • Supports both English and multilingual semantic search across 15 languages
  • Automatically processes text fields into sparse vectors during data ingestion
  • Provides improved search relevance by understanding context beyond exact word matching
  • Performance benchmarks show 20% relevance improvement for English and 105.1% for multilingual searches
  • Priced based on OpenSearch Compute Units (OCUs) consumed during indexing

The feature simplifies semantic search implementation, allowing developers to enhance search functionality with minimal effort and infrastructure management. It works best for small-to-medium sized text fields like product descriptions and titles.



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