business

A/B Testing and Product Ratings, Part 2: Multiple Ratings

May 23, 2022 · 3 min read · data science analytics business statistics a/b testing ·

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Second, your A/B test split users, but you’re measuring ratings, which are per-item. Some customers will buy multiple pairs of shoes, and most likely will either rate all of them or none of them. Does this fact affect how confident you can be at the end of the experiment? Randomization Unit Mis-Match A/B tests are …

A/B Testing and Product Ratings, Part 1: Delays and Bias

May 22, 2022 · 7 min read · data science analytics business statistics a/b testing ·

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Suppose you’re a data scientist at an e-commerce web site that sells shoes, responsible for supporting A/B tests. Many A/B tests are easy, and there are a number of companies that sell tools that make the easy cases as simple as clicking a few buttons and looking at pretty graphs. But A/B tests can get statistically …

Thoughts on Managing Data Science Team Workstreams (and a Shiny app)

Jan 28, 2016 · 7 min read · data science management business R Shiny ·

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This post was originally published on Medium Data Scientist (n.): Person who is better at statistics than any software engineer and better at software engineering than any statistician. — Josh Wills (@josh_wills) May 3, 2012 There are different types of data scientists, with different backgrounds and career …

Building a Complementary Data Science Team

Nov 23, 2015 · 3 min read · data science management business job titles ·

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This post was originally published on Medium I’m the Director of Data Science at EAB, a firm that provides best-practices research and enterprise software for colleges and universities. My team is responsible for the predictive models and other advanced analytics that are part of the Student Success Collaborative …

Inauthenticity

Sep 7, 2014 · 2 min read · advertising marketing business media ·

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Let me unpack that a bit…

Hugh and Crye t-shirt

Recently, Hugh & Crye, a DC-based clothing firm for men, with a novel take on sizing, recently did a Kickstarter campaign for their new line of fitted t-shirts. What the hell? H&C has been around for about 5 years, and based …