by Dr. Owns | Dec 12, 2025 | Analytics, Artificial Intelligence, Data and Information, Decision Support
In this article, we rebuild Logistic Regression step by step directly in Excel. Starting from a binary dataset, we explore why linear regression struggles as a classifier, how the logistic function fixes these issues, and how log-loss naturally appears from the...
by Dr. Owns | Dec 12, 2025 | Analytics, Artificial Intelligence, Data and Information, Decision Support
Most breakthroughs in deep learning — from simple neural networks to large language models — are built upon a principle that is much older than AI itself: decentralization. Instead of relying on a powerful “central planner” coordinating and commanding the behaviors of...
by Dr. Owns | Dec 12, 2025 | Analytics, Artificial Intelligence, Data and Information, Decision Support
Hey everyone! Welcome to the start of a major data journey that I’m calling “EDA in Public.” For those who know me, I believe the best way to learn anything is to tackle a real-world problem and share the entire messy process — including mistakes, victories, and...
by Dr. Owns | Dec 12, 2025 | Analytics, Artificial Intelligence, Data and Information, Decision Support
Introduction How do we identify latent groups of patients in a large cohort? How can we find similarities among patients that go beyond the well-known comorbidity clusters associated with specific diseases? And more importantly, how can we extract quantitative signals...
by Dr. Owns | Dec 11, 2025 | Analytics, Artificial Intelligence, Data and Information, Decision Support
Linear Regression looks simple, but it introduces the core ideas of modern machine learning: loss functions, optimization, gradients, scaling, and interpretation. In this article, we rebuild Linear Regression in Excel, compare the closed-form solution with Gradient...
by Dr. Owns | Dec 11, 2025 | Analytics, Artificial Intelligence, Data and Information, Decision Support
A step-by-step tutorial that explores the Python Turtle Module The post Drawing Shapes with the Python Turtle Module appeared first on Towards Data Science. A step-by-step tutorial that explores the Python Turtle Module The post Drawing Shapes with the Python Turtle...
