Start Here    

Making Sense of Data: From Statistics to AI

In today's data-driven world, the terms statistics, data science, machine learning, and artificial intelligence are often used interchangeably, yet each field...
mladvocate
3 min read

From Mendel’s Peas to ChatGPT: A History of Machine Learning

The journey of machine learning is a captivating tale that spans centuries, from the humble pea plants in a 19th-century monastery...
mladvocate
6 min read

What is Machine Learning? A Beginner’s Guide

Your phone’s camera doesn’t just take pictures anymore. It decides when to use night mode, adjusts focus automatically, and can even...
mladvocate
2 min read

Welcome to Machine Learning Advocate

Machine Learning is everywhere. It decides which loan applications get approved, which medical scans get flagged for review, which play an...
mladvocate
1 min read

Foundations    

Why Learn Machine Learning in the Age of AI

AI and machine learning have never been more accessible. No-code AI platforms, prebuilt agents, and foundation models you can call with...
mladvocate
2 min read

How Machine Learning Works: It’s Not Learning

A machine learning model doesn’t work the way you probably think it does. When most people hear the word learning, they...
mladvocate
3 min read

Machine Learning Foundations Part 4: Understanding Hardware

When your phone slows down because too many apps are open, it lags, gets warm, and everything takes twice as long...
mladvocate
2 min read

Machine Learning Foundations Part 3: Understanding Algorithms

This is Part 3 of our Foundations series. In Part 1, we covered data. In Part 2, models. Now we’re looking...
mladvocate
2 min read

Machine Learning Foundations Part 2: Understanding Models

This is Part 2 of our Foundations series. In Part 1, we covered data. Now we’re looking at models: what they...
mladvocate
2 min read

Machine Learning Foundations Part 1: Understanding Data

Data: The Foundation of Machine Learning This is the first post in a 4-part series that takes you behind the scenes...
mladvocate
10 min read

Mental Models    

What Is Cross Validation in Machine Learning

Cross validation in machine learning is not just a technique for testing a model. It is a way of asking a...
mladvocate
4 min read

What Is Overfitting in Machine Learning

Overfitting is not a model failing to learn. It is a model that learned exactly what it was shown, and nothing...
mladvocate
3 min read

What Regularization Does (and Why Your Model Needs It)

Overfitting is not a mistake the model makes. It is what happens when a model does exactly what it is told....
mladvocate
4 min read

Machine Learning for Non-Technical Professionals

Why Your “Silly Questions” Are Product Requirements We have a technical writer on our team. She’s sharp, curious, and exactly the...
mladvocate
7 min read

A Friendly Introduction to Principal Component Analysis

Most datasets don’t have two or three measurements per observation. They have dozens, sometimes hundreds. A patient record might include blood...
mladvocate
5 min read

Bias Variance Tradeoff: Why Your ML Model Can’t Have It All

For years, every time I fixed one problem with my models, I created another one. Make the model more sophisticated to...
mladvocate
3 min read

Mathematics and Statistics    

Machine Learning Math: Start Simple, Learn as You Go

Last year a data analyst I work with told me she’d closed a machine learning tutorial after the first page. Too...
mladvocate
1 min read

ML in the Wild    

Machine Learning in Healthcare: AI Scribes and Heart Disease Screening

How ambient AI scribes turn doctor-patient conversations into clinical notes, and how a University of Michigan model detects hidden heart disease...
mladvocate
4 min read

Machine Learning in the NBA: Player Tracking and Injury Prevention

Every NBA arena has cameras mounted in the catwalks that track every player and the ball at 25 frames per second....
mladvocate
2 min read

Strike Zone Prediction Model: How Neural Networks Analyze MLB Statcast Data

Baseball has always been a numbers game. Batting averages, earned run averages, and RBIs have been part of the sport for...
mladvocate
2 min read

How Formula 1 Teams Use Machine Learning to Win Races

In Formula 1, milliseconds decide races. The cars generate massive amounts of data, around 400 GB per race from sensors tracking...
mladvocate
1 min read

Machine Learning in Sports: How AI Predicts NFL Tackles

This is the first post in the “ML in the Wild” series, where we look at specific machine learning applications in...
mladvocate
1 min read

Because it's Friday    

Because it’s Friday: A Million Random Digits

In 1955, the RAND Corporation published a book called “A Million Random Digits with 100,000 Normal Deviates.” This is exactly what...
mladvocate
43 sec read

Because It’s Friday: The Music Video Where Physics Wrote the Song

The universe arranges itself into patterns, completely invisible, right in front of us. Every so often someone finds a way to...
mladvocate
44 sec read

Because it’s Friday: Wrong in Real Time

A nonprofit research group called METR (Model Evaluation & Threat Research) ran a randomized controlled trial earlier this year to measure...
mladvocate
50 sec read

Because It’s Friday: The Mozzarella Phase

A group of Italian physicists got tired of their cacio e pepe turning clumpy when cooking for big groups, so they...
mladvocate
55 sec read

Because It’s Friday: Spurious Scholar

Tyler Vigen’s Spurious Correlations has been a beloved corner of the internet since 2014, pairing line charts of things like Nicolas...
mladvocate
39 sec read

Because It’s Friday: The Animal Fart Database

Somewhere between a Twitter joke and a peer-reviewed research tool lives #DoesItFart, a crowdsourced spreadsheet maintained by biologists cataloging which animals...
mladvocate
41 sec read

Use Cases and Examples    

How I Vibe Coded an AI Assistant for My Blog in One Weekend

Last weekend I built an AI assistant for this blog in about a day, using roughly five dollars of cloud services...
mladvocate
4 min read

All Stories

Training vs Testing Data: ML Models Must Prove Themselves

Does this sound familiar? You’re tutoring a student for an upcoming math test. You help them solve dozens of practice problems...
mladvocate
5 min read

Inference vs Prediction in Machine Learning: What’s the Difference?

Some machine learning applications can make accurate recommendations but can’t explain the reasoning. Others provide clear explanations but aren’t quite as...
mladvocate
2 min read

Classification vs Regression: Predicting What vs. How Much

In our previous post, we explored supervised vs. unsupervised learning. Now we’re diving into another fundamental choice you’ll face in every...
mladvocate
5 min read

Supervised vs Unsupervised Learning in Machine Learning: What the Names Don’t Tell You

Remember learning to ride a bike? Some of us had a parent running alongside, holding the seat and shouting guidance: “Pedal...
mladvocate
5 min read
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Answers from the blog
Hi! 👋 Ask me anything about machine learning and AI! I'll answer using ML Advocate blog posts.