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Alexander Ratner

Co-Founder and CEO at Snorkel AI

Stanford, US

About

Alex Ratner is a third-year PhD student at the Stanford InfoLab working under Chris Re. Alex works on new machine learning paradigms for settings where limited or no hand-labeled training data is available, motivated in particular by information extraction problems in domains like genomics, clinical diagnostics, and political science. He coleads the development of the Snorkel framework for lightweight information extraction.

Position in the VCSift Database

  • 2 investors at Snorkel AI are tracked.
  • 927 investors hold the Co-Founder and CEO role in VCSift. Alexander Ratner is one of them.
  • 108 investors are based in Stanford, California, United States.

Data sourced from 410,343 investor profiles. Updated July 2026.

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Contact Information

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