Gradient Dissent: Conversations on AI

Gradient Dissent: Conversations on AI


How Sean Taylor of Lyft Rideshare Labs thinks about business decision problems

May 13, 2021

Sean joins us to chat about ML models and tools at Lyft Rideshare Labs, Python vs R, time series forecasting with Prophet, and election forecasting.

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Sean Taylor is a Data Scientist at (and former Head of) Lyft Rideshare Labs, and specializes in methods for solving causal inference and business decision problems. Previously, he was a Research Scientist on Facebook's Core Data Science team. His interests include experiments, causal inference, statistics, machine learning, and economics.

Connect with Sean:
Personal website: https://seanjtaylor.com/
Twitter: https://twitter.com/seanjtaylor
LinkedIn: https://www.linkedin.com/in/seanjtaylor/

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Topics Discussed:
0:00 Sneak peek, intro
0:50 Pricing algorithms at Lyft
07:46 Loss functions and ETAs at Lyft
12:59 Models and tools at Lyft
20:46 Python vs R
25:30 Forecasting time series data with Prophet
33:06 Election forecasting and prediction markets
40:55 Comparing and evaluating models
43:22 Bottlenecks in going from research to production

Transcript:
http://wandb.me/gd-sean-taylor

Links Discussed:
"How Lyft predicts a rider’s destination for better in-app experience"": https://eng.lyft.com/how-lyft-predicts-your-destination-with-attention-791146b0a439
Prophet: https://facebook.github.io/prophet/
Andrew Gelman's blog post "Facebook's Prophet uses Stan": https://statmodeling.stat.columbia.edu/2017/03/01/facebooks-prophet-uses-stan/
Twitter thread "Election forecasting using prediction markets": https://twitter.com/seanjtaylor/status/1270899371706466304
"An Updated Dynamic Bayesian Forecasting Model for the 2020 Election": https://hdsr.mitpress.mit.edu/pub/nw1dzd02/release/1

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