Reinforcement fine-tuning for Amazon Nova: Teaching AI through feedback

Favorite Foundation models deliver impressive out-of-the-box performance for general tasks, but many organizations need models to consume their business knowledge. Model customization helps you bridge the gap between general-purpose AI and your specific business needs when building applications that require domain-specific expertise, enforcing communication styles, optimizing for specialized tasks like

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Shared by AWS Machine Learning February 27, 2026

Learnings from COBOL modernization in the real world

Favorite There’s a lot of excitement right now about AI enabling mainframe application modernization. Boards are paying attention. CIOs are getting asked for a plan. AI is a genuine accelerator for COBOL modernization but to get results, AI needs additional context that source code alone can’t provide.Here’s what we’ve learned

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Shared by AWS Machine Learning February 27, 2026

Building intelligent event agents using Amazon Bedrock AgentCore and Amazon Bedrock Knowledge Bases

Favorite Large conferences and events generate overwhelming amounts of information—from hundreds of sessions and workshops to speaker profiles, venue maps, and constantly updating schedules. While basic AI assistants can answer simple questions about event logistics, most fail to deliver the personalized guidance and contextual awareness that attendees need to navigate

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Shared by AWS Machine Learning February 26, 2026