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Data Intuition Case Study: Grain-free Dog Food
My vet told me I should stop feeding my dog grain-free dog food. Apparently, grain-free dog food is linked with a heart condition called Dilated…
Feb 18, 2022
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Ryan Harter
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Data Intuition Case Study: Grain-free Dog Food
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June 2021
Getting Credit for Invisible Work
Last month I gave a talk at csv,conf on "Getting Credit for Invisible Work". The (amazing) csv,conf organizers just published a recording of the talk…
Jun 4, 2021
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Ryan Harter
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Getting Credit for Invisible Work
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April 2021
Opportunity Sizing - Is the Juice Worth the Squeeze?
My peers at Mozilla are running workshops on opportunity sizing. If you're unfamiliar, opportunity sizing is when you take some broad guesses at how…
Apr 15, 2021
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Ryan Harter
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Opportunity Sizing - Is the Juice Worth the Squeeze?
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January 2021
Controlled Experiments - Why Bother?
I spent some time earlier this year orchestrating a massive experiment for Firefox. We launched a bunch of new features with Firefox 80 and we wanted to…
Jan 7, 2021
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Ryan Harter
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Controlled Experiments - Why Bother?
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Conversations about the soft side of Data Science
Welcome to Practical Data Science by me, Ryan Harter. Principal Data Scientist @ Mozilla Sign up now so you don’t miss the first issue. In the meantime…
Jan 6, 2021
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Ryan Harter
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Conversations about the soft side of Data Science
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December 2020
Leading with Data - Cascading Metrics
Leading with Data - Cascading Metrics It's surprisingly hard to lead a company with data. There's a lot written about how to set good goals and how to…
Dec 9, 2020
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Ryan Harter
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Leading with Data - Cascading Metrics
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October 2020
Defining Data Intuition
Last week, one of my peers asked me to explain what I meant by "Data Intuition", and I realized I really didn't have a good definition. That's a…
Oct 20, 2020
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Ryan Harter
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Defining Data Intuition
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Surrogation
A year or so ago, I read this article about how Wells Fargo ended up in such a mess. If you don't remember, Wells Fargo was opening accounts in their…
Oct 7, 2020
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Ryan Harter
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Surrogation
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July 2020
What do you take home?
Every other week, I go through my todo list and decide where I should focus my attention. I review a list of prompts that help me choose important work…
Jul 10, 2020
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Ryan Harter
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What do you take home?
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June 2020
Post hoc, ergo propter hoc
Economists have a handy phrase to describe a fairly common fallacy: "Post hoc ergo propter hoc" meaning "After, therefore because". Wikipedia has an…
Jun 17, 2020
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Ryan Harter
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Post hoc, ergo propter hoc
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December 2019
Pub True
I'm ramping up on a project to understand how Firefox retains users. Right now I'm trying to build some context quickly. For example, what's our monthly…
Dec 13, 2019
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Ryan Harter
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Pub True
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Analysis Maturation Plan
I was talking about tooling with Mark Reid a few weeks ago. I've been trying to find a way to simplify sharing analyses throughout the company. This is…
Dec 12, 2019
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Ryan Harter
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Analysis Maturation Plan
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