It happens with every reasonably serious project: you export the keyword list from Search Console or a tool, and you…
Anyone who spends their days inside Search Console knows that little nagging feeling: a page sits steadily in third position,…
In the article on the multi-armed bandit we used Bayes to decide between variants: shifting traffic toward the one converting…
In the article on Bayesian A/B testing we compared two variants at a fixed sample size: we collect the data…
In the article on classic A/B testing we saw how to compare two variants with the two-proportion test: we compute…
In the article on the foundations of Bayesian statistics, we saw how Bayesian updating works through simulation: generate samples from…
On 21 January 2015 Optimizely — one of the most widely used A/B testing platforms in the world — switched…
In the Israeli Air Force, Daniel Kahneman recounts, the flight instructors were sure of one thing: praising a cadet after…
In this article: What an A/B test is Setting up an A/B test correctly Worked example: conversion rate of two…
In this article: What PCA is The mathematical foundations Practical applications PCA in web marketing Implementing PCA in R Verification…