Mar 8, 2025
Vaccines Do Work
Recently, I encountered a comment that was just dead wrong: If 100% of people got a vaccine, people would still get whatever they were vaccinated for. If they were 100% effective the…
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Archive page 7 of 73
Feb 6, 2025
Ridit Analysis for Ordered Data
Statistical methods have continually evolved, often in response to new challenges and advancements in computational power. However, not all valuable techniques remain in the spotlight. Some, despite their potential, fade into obscurity.…
Jan 31, 2025
Bradley-Terry Model and Data-Driven Ranking
Imagine you are ranking a set of teams, chess players, or even flavors of ice cream. You do not have an objective rating scale--only a series of head-to-head matchups. If chocolate beats…
Jan 29, 2025
Completed the IHGS Heraldry Course
Studying heraldry is both an intellectual and practical pursuit, requiring a strong grasp of history, art, and precise language. Over the past months, I have worked through the Heraldry Course offered by…
Jan 28, 2025
The OODA Loop in Machine Learning Model Selection
The OODA Loop—Observe, Orient, Decide, Act—is a decision-making framework originally developed by U.S. Air Force Colonel John Boyd for military strategy. Boyd, a fighter pilot and strategist, introduced the concept to describe…
Jan 27, 2025
Cochran's Q Test: A Simple Tool for Complex Decisions
Let us set the scene: you are running an experiment, testing different approaches to a problem. Maybe you are optimizing fraud detection algorithms, fine-tuning ad targeting strategies, or running an A/B/n test…
Jan 7, 2025
The Maryland Defense Force's Shoulder Sleeve Insignia
The Maryland Defense Force (MDDF) has long been a quiet but critical part of Maryland's military heritage. As a state defense force, it supports the Maryland National Guard and serves the people…
Jan 3, 2025
The Theil-Sen Estimator: A Robust Tool for Real-World Data
Linear regression is one of the most widely used tools for analyzing relationships between variables. Its simplicity and power make it an essential part of every data scientist's toolkit, but its effectiveness…
Jan 1, 2025
The Lion and the Unicorn
The Royal Coat of Arms stands as one of the most enduring symbols of monarchy, carrying layers of historical and cultural significance. Beyond its decorative function, it encapsulates the identity and authority…
Dec 17, 2024
McNemar's Test: The Hidden Gem for Paired Binary Data
Imagine you are comparing two versions of your churn prediction model. The old version correctly predicts churn for 70% of customers, while the new version nails it for 75%. Sounds like progress,…
Dec 10, 2024
On the Royal Badges
Royal badges have long been a way for English and British monarchs to stamp their identity on history--literally. These emblems, unlike the more formal coat of arms, were personal markers of power,…