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Category: Featured

GraphQL on Rails, part 2/2

July 9, 2017January 23, 2018
John Quarto-vonTivadar
Featured, Research, Ruby on Rails

Some actual code to explore a simple way to use GraphQL with a Ruby on Rails 5 app

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GraphQL on Rails, part 1/2

July 6, 2017January 23, 2018
John Quarto-vonTivadar
Featured, Research, Ruby on Rails

A short exploration of using GraphQL to query a Rails 5 API

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Thinking Inside The Boxplot

October 1, 2013January 4, 2018
John Quarto-vonTivadar
Data Science, Featured, Metrics, Statistics

In a previous post describing a simple approach to de-seasonalizing your data, I covered how marketers can examine, at a rough level, the impact of seasonality on metrics. Obviously, your data science team would be looking at this data in

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Tis The Seasonality Of Your Metrics

July 11, 2013July 11, 2013
John Quarto-vonTivadar
Featured, Headline, Metrics, Statistics

I want to show you a technique to fix another common time-series problem: seasonality. The article will illustrate a fast and simple way to de-seasonalize your data.

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Keep An Infinite Memory for your Metrics

May 15, 2013May 15, 2013
John Quarto-vonTivadar
Featured, Headline, Metrics

The Exponential Moving Average (“EMA”) is a very useful tool in your metrics arsenal because in the EMA the memory of past metrics values is never forgotten

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Setting Up Your Negative Metrics

April 17, 2013May 2, 2013
John Quarto-vonTivadar
Featured

This is a continuation of  my exploration of negative metrics thread which covers how to think about your negative metrics and how to set them up as part of your testing and optimization process. It’s based on earlier work I’ve published

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I Before E, Except After C

March 19, 2013
John Quarto-vonTivadar
Featured, Metrics, Optimization & Testing

“I Before E, Except After C” — do you remember that from 4th grade spelling? Well, it works just as well when you’re concentrating on your metrics and optimization program. What do the letters mean? Read this entire article over

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I, Deceiver

October 2, 2012October 2, 2012
John Quarto-vonTivadar
Featured

This is a follow up to my previous article “Oh, What A Tangled Web We Weave” which discusses 8 common ways we practice self-deception on ourselves, particularly in the context of metrics, analytics, and continuous improvement testing. Continuing with our

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Oh, What A Tangled Web We Weave …

October 1, 2012October 2, 2012
John Quarto-vonTivadar
Featured, Metrics, Optimization & Testing

“Oh, What A Tangled Web We Weave, When First We Practice To {Self} Deceive” With apologies to Sir Walter Scott and my mangling of his most popular turn of phrase, I’d like to take some time now to discuss how

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The Value of Nothing

August 30, 2012August 30, 2012
John Quarto-vonTivadar
Analytics, Featured, Headline, Metrics

When is nothing worth something? Turns out, just about all the time. Whenever you look at your metrics consider that a metric is, in virtually every case, designed to measure a specific outcome. It may be a positive outcome, one

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