Researcher

Yoram Singer

Singer worked at AT&T from 1995 to 1999 and was an associate professor at the Hebrew University from 1999 to 2007. His later career included Google research and a Princeton professorship. Singer coauthored Adaptive Subgradient Methods for Online Learning and Stochastic Optimization with John Duchi and Elad Hazan. The paper uses geometry from earlier observations to adapt gradient-based learning and provides formal regret guarantees under assumptions. Singer co-founded Sibyl, used for multiple YouTube prediction tasks during 2008–2018. He also worked on Google’s domain-spam classifier and research programs in effective machine learning.

Works
214
Citations
41,612
h-index
62

Publication numbers from OpenAlex, as of 14 October 2026.

Photo of Yoram Singer

Timeline

  1. 1995–2007

    Research and university work

    Singer worked at AT&T from 1995 to 1999 and was an associate professor at the Hebrew University from 1999 to 2007. His later career included Google research and a Princeton professorship.

  2. 2011

    Adaptive learning steps

    Singer coauthored Adaptive Subgradient Methods for Online Learning and Stochastic Optimization with John Duchi and Elad Hazan. The paper uses geometry from earlier observations to adapt gradient-based learning and provides formal regret guarantees under assumptions.

  3. 2008–2018

    Learning infrastructure

    Singer co-founded Sibyl, used for multiple YouTube prediction tasks during 2008–2018. He also worked on Google’s domain-spam classifier and research programs in effective machine learning.

Sources and credits

Photo: cs.princeton.edu; Singer, Russakovsky, Lloyd Join Computer Science Faculty | CS; creator not stated. License: Not stated by source. Source: cs.princeton.edu. Cropped to a square and resized. Ask us to remove or replace this photo.

  1. Yoram Singer - Bio yoram-singer.github.io. Checked 13 October 2026.
  2. Adaptive Subgradient Methods for Online Learning and Stochastic Optimization jmlr.org. Checked 13 October 2026.