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AWS Machine Learning Blog· Siddhant Sahu·· 6 d ago

Single-shot and agentic retrieval with Amazon Bedrock Managed Knowledge Base

Single-shot and agentic retrieval with Amazon Bedrock Managed Knowledge Base

AI summary

Amazon Bedrock Managed Knowledge Base now supports single-shot RAG and retrieval-only requests through AgenticRetrieveStream, alongside agentic retrieval. This post explains how the maxAgentIteration parameter matches retrieval effort to each request, using an illustrative internal banking policy assistant.

Selection record

Not admittedSum of both 76 < twice the threshold 120

Source tier
Official, first-hand; this tier's threshold is 60
Pre-filter
passed:介绍Bedrock知识库RAG与Agent检索模式

A model scores each item twice, independently, against one written standard, out of 100. An item is admitted only when the two scores add up to twice the threshold. The threshold is set per source tier.

Source: AWS Machine Learning Blog · aws.amazon.com