From Frequentist to Bayesian

An example of a simple R analysis howcasing the concept of pattern identification through the calculation of observed-over-expected frequencies/probabilities.

Macro Project

This project reverse engineers Etsy's recommendation system through scenario design analysis and hands-on platform observation. I examine how Etsy balances buyer personalization with seller visibility in a marketplace built on uniqueness and craftsmanship. Through direct interaction as a new user, I documented personalization emerging within 10 minutes and identified a likely 80/20 split favoring content-based filtering (aesthetic matching, visual similarity) over collaborative filtering (popularity signals). Drawing on Amazon and NYT's documented approaches, I provide strategic recommendations for improving user control, seller fairness, and discovery. This analysis demonstrates skills in algorithm analysis, multi-stakeholder thinking, and ethical ML system design relevant to e-commerce and marketplace platforms.