engblogs

summaries of the latest blog articles from your favorite tech companies.
Apple MLApple ML

Inferring Optical Tissue Properties from Photoplethysmography using Hybrid Amortized Inference

Introducing PPGen, a biophysical model that maps photoplethysmography signals to interpretable optical and physiological tissue parameters, and Hybrid Amortized Inference (HAI) for fast, robust, and scalable parameter estimation in wearables, balancing deep learning performance with clinical interpretability and hardware-aware design.

1/9/2026
Apple MLApple ML

Pretraining with Hierarchical Memories: Separating Long-Tail and Common Knowledge

A memory-augmented pretraining approach using hierarchical memories to separate long-tail knowledge from common knowledge, with a small anchor model accessing a large memory bank for memory-efficient inference and fine-tuning on resource-constrained devices.

1/9/2026
AWS MLAWS ML

Architecting TrueLook’s AI-powered construction safety system on Amazon SageMaker AI

Three-stage, domain-adaptive YOLOv11 PPE detection trained on TrueLook data, deployed on SageMaker AI via automated Pipelines and Model Registry to deliver real-time construction-site safety monitoring with governance and continuous improvement.

1/9/2026
AWS MLAWS ML

Sentiment Analysis with Text and Audio Using AWS Generative AI Services: Approaches, Challenges, and Solutions

Explores end-to-end sentiment analysis for text and audio using AWS Generative AI services, detailing architectures, experiments, challenges, and future directions.

1/9/2026
AWS MLAWS ML

How Beekeeper optimized user personalization with Amazon Bedrock

Beekeeper builds a Bedrock-powered, feedback-driven leaderboard to optimize LLM prompts and personalization for frontline workers, enabling dynamic model/prompt selection and tenant-specific customization.

1/9/2026
OpenAIOpenAI

Datadog uses Codex for system-level code review

Datadog leverages Codex to perform system-level code reviews, illustrating how AI-assisted analysis enhances code quality and reliability across complex, distributed systems.

1/9/2026
MIT AIMIT AI

3 Questions: How AI could optimize the power grid

AI-driven optimization of the power grid enables real-time balancing of supply and demand, better integration of renewables, and smarter planning to improve efficiency, resilience, and decarbonization.

1/9/2026
Lambda LabsLambda Labs

JAX on NVIDIA GPUs Part 2: A practical guide for ML engineers

Scaling JAX-powered LLM training from a single GPU to multi-node NVIDIA Blackwell clusters, with controlled experiments, learning-rate scaling, and practical patterns for ML engineers.

1/8/2026
OpenAIOpenAI

Netomi’s lessons for scaling agentic systems into the enterprise

A concise technical guide on how to scale agentic systems within enterprise environments, drawing on Netomi’s practical lessons.

1/8/2026
MIT AIMIT AI

Decoding the Arctic to predict winter weather

A technical synthesis of Arctic diagnostics and AI-powered subseasonal forecasting that extends winter-weather predictions beyond ENSO, highlighting Siberian snow cover, polar-vortex dynamics, and Barents-Kara Sea conditions.

1/8/2026
OpenAIOpenAI

OpenAI for Healthcare

A technical overview of applying OpenAI in healthcare, focusing on model integration, data governance, and safe, AI-assisted clinical workflows.

1/8/2026
AWS MLAWS ML

Scaling medical content review at Flo Health using Amazon Bedrock (Part 1)

A PoC for AI-assisted, scalable medical content verification at Flo Health using MACROS on Amazon Bedrock to streamline content review and revision against up-to-date medical guidelines.

1/8/2026