Machine Learning - csen2025.org

Visualizing train validation and test splits.

Dr. Ingrid Falk-Weller
January 22, 2026
(0)
Machine Learning

Touching the Test Set Once Is Once Too Often

I still remember the exact moment I realized my PhD thesis was built on a house of cards. I was staring at a convergence plot in a dimly lit lab, feeling that heady rush of success, only to realize that…

Supervised versus unsupervised learning cost comparison.

Dr. Ingrid Falk-Weller
January 13, 2026
(0)
Machine Learning

Labels Are Expensive, Which Shapes the Whole Field

I spent three years in academia watching brilliant researchers build massive, expensive models for supervised versus unsupervised learning tasks, only to see those same models crumble the moment they hit a messy, real-world dataset. The industry loves to sell these…