A Better Match for Drivers and Riders: Reinforcement Learning at Lyft
INFORMS JOURNAL ON APPLIED ANALYTICS(2024)
Abstract
To better match drivers to riders in our ridesharing application, we revised Lyft's core matching algorithm. We use a novel online reinforcement learning approach that estimates the future earnings of drivers in real time, and we use this information to find more efficient matches. This change was the first documented implementation of a ridesharing matching algorithm that can learn and improve in real time. We evaluated the new approach during weeks of switchback experimentation in most Lyft markets and estimated how it benefited drivers, riders, and the platform. In particular, it enabled our drivers to serve millions of additional riders each year, leading to more than $30 million per year in incremental revenue. Lyft rolled out the algorithm globally in 2021.
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Key words
Edelman award,reinforcement learning,ridesharing,optimization,experimentation,transportation
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