Book Bits: 16 May 2026

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Roth Interview with author via Critical Mass podcast Alvin Roth is a Nobel Prizewinning Economist whose work on designing markets has had real world impacts that may have saved thousands of lives around the world, while arousing strong emotions both for and against the programs he has helped put in place... By purchasing books through this site, you provide support for The Capital Spectator’s f...

The AWS AI Security Framework: Securing AI with the right controls, at the right layers, at the right phases

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TL;DR for busy executives The AWS AI Security Framework helps security leaders move fast and stay secure with AI... Core principle: You aren’t adding security to AI... You’re building AI on top of security... Introducing the AWS AI Security Framework Every security leader asks the same question: How do I secure AI without slowing down innovation velocity? 80% of organizations have...

Restrict access to sensitive documents in your Amazon Quick knowledge bases for Amazon S3

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Organizations that must restrict access to sensitive documents increasingly rely on AI-driven search and chat to help employees find answers across large repositories... Coarse-grained permissions that control access at the knowledge base level work well for many teams, but sensitive documents require more granular control to restrict specific documents or folders to authorized teams, individuals,...

Factor Extremes: Momentum Runs Hot as Low-Vol Stumbles

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Yet reviewing the market through a risk-factor risk lens tells a more nuanced story, revealing a wide dispersion of trends that have emerged since the conflict with Iran began on Feb...The results suggest that much of the difference between equity-portfolio strategies during the war-regime period can be traced to factor allocations... For example, among the winning strategies of late there’s ...

Amazon Bedrock introduces new advanced prompt optimization and migration tool

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Today, we’re announcing Amazon Bedrock Advanced Prompt Optimization, a new tool that you can use to optimize your prompts for any model on Amazon Bedrock, while comparing your original prompts to optimized prompts across up to 5 models simultaneously... With the new prompt optimization, you can migrate to a new model or improve performance from your current model... The new prompt optimizer t...

Regional routing for AWS access portals: Implementing custom vanity domains for IAM Identity Center

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With the recent launch of IAM Identity Center multi-Region replication, customers can replicate their IAM Identity Center instance across multiple AWS Regions to improve resilience and reduce latency for a globally distributed workforce... As a result, users have a dedicated access portal URL in each Region where Identity Center is replicated, and where administrators need a consistent way to man...

Improve bot accuracy with Amazon Lex Assisted NLU

TutoSartup excerpt from this article:
Assisted NLU (including Primary mode, Fallback mode, and intent disambiguation) is included at no additional cost with standard Amazon Lex pricing... You will learn how to improve your bot design with effective intent and slot descriptions, validate your implementation using Test Workbench, and plan your transition from traditional NLU to Assisted NLU for both new and existing bots... Prerequis...