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Analytics Dispatch 4/4/2022

Machine learning’s validity problem

NEW FROM MODE
Cohort Analysis: An Introductory Guide for Better Retention
When done right, cohort analysis can unearth valuable information about different user segments that can help go-to-market and product departments focus their efforts with nuanced insights. - Mode Blog

SHIFT OF PERSPECTIVE
How the World’s Richest People Are Driving Global Warming
Differences between high and low emitters within nations show that globally, the top 1%—located all over the world—actually emit about 70 times as much carbon as the bottom 50%. - Bloomberg

BETTER MODELS, BETTER VIZ
The Three Mental Models Model for Data Visualization
Every visualization has at least three mental models at play: a model of the visualization, of the data, and of the world. - FILWD

JOIN FORCES
Machine Learning Has a Validity Problem
“One of the central tenets of machine learning warns the more times you run experiments with the same test set, the more you overfit to that test set. This conventional wisdom is mostly wrong and prevents machine learning from reconciling its inductive nihilism with the rest of the empirical sciences.” - arg min blog

I AIN’T AFRAID
The Ghosts in the Data Stack
An OLAP cube exorcism. - benn.substack

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