Investigating Anomalies

John Rauser (Snapchat)
Operations Mission City Ballroom
This presentation will be streamed live along with the other keynotes.
Average rating: ****.
(4.76, 46 ratings)

“The most exciting phrase to hear in science, the one that heralds new discoveries, is not ‘Eureka!’ but ’That’s funny…’” -Isaac Asimov

This is a talk about the wonderful things that happen when you chase down anomalies in your data. When an experiment produces counterintuitive results, or a lovely relationship in your data is spoiled by outliers, a natural tendency is to toss the result aside and try again. But when you take the time to truly understand anomalous results, often one of two things happens: either you destroy your hypothesis, or you make it bulletproof.

Photo of John Rauser

John Rauser


John has been extracting value from large datasets for over 20 years at hedge funds, small data-driven startups, Amazon, Pinterest, and now Snapchat. He has deep experience in machine learning, data visualization, on-line experimentation, website performance and real-time fault analysis. An empiricist at heart, “Just do the experiment!” is his favorite call to arms.


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