The best free AI courses and certificates for upskilling in 2026 - and I've tried them all

I've worked with AI for decades and have a master's degree in education. Here are the top free AI courses online that I recommend - and why.

Data Historians: Turning ‘Digital Landfills’ Into Strategic Assets

In a recent installment of the International Society of Automation’s “Ask the Automation Pros” series, Erik Cornelsen, ...
IEEE

KF-MFWL: A High-Resolution Time Series Construction Algorithm for Lake Water Levels Based on Multisource Altimeter Satellites and Meteorological Data Fusion

Abstract: Changes in lake water levels are closely related to climate change and can also reflect information about local human activities. Therefore, obtaining high temporal resolution time series of ...
Daily Excelsior

Machine Learning Methods Used for Portfolio Optimization and Risk Management

Machine learning is reshaping the way portfolios are built, monitored, and adjusted. Investors are no longer limited to ...
TMCnet

How to Hire Python Developers in 2026 - The Complete Guide (for Startups & Scaleups)

Python''s popularity is surging. In 2025, it achieved a record 26.14% TIOBE index rating, the highest any language has ever reached, largely driven by AI and data trends. 58% of developers now use ...
IEEE

Robust Fault-Tolerant Flush Air Data Sensing Algorithm via Incorporating Physical Knowledge

Abstract: The flush air data sensing (FADS) system resolves air data state issues through redundant measurements of surface pressure distributions on the vehicle, with its fault-tolerant algorithm ...
Wall Street Journal

Your Christmas Gifts Should Defy the Algorithms

My grandfather grew up in Franklin County, Va., a small farming region deep in the foothills of the Appalachian Mountains. As a child, he did his schoolwork by firelight and passed long days plowing ...