Researcher

Peter Spirtes

Also known as Peter L. Spirtes

Peter Spirtes is a professor of philosophy at Carnegie Mellon University who helped develop the Tetrad platform for automated causal discovery from statistical data. He earned a PhD in history and philosophy of science and a master's degree in computer science at the University of Pittsburgh, and joined the Carnegie Mellon faculty in 1987. With Clark Glymour and Richard Scheines he wrote Causation, Prediction, and Search in 1993, and he led the effort to prove that the team's causal discovery algorithms are theoretically reliable. Tetrad won a Super Artificial Intelligence Leader award in Shanghai in 2020, and in 2021 he became head of the philosophy department and the first Marianna Brown Dietrich Professor. He is the Marianna Brown Dietrich Professor of Philosophy and a leader of the CMU-CLeaR group on causal learning, and Kevin Zollman succeeded him as department head in September 2026.

Timeline

  1. By 1987

    Pitt degrees and a CMU post

    He earns a PhD in history and philosophy of science at the University of Pittsburgh and joins the Tetrad project while taking a master's degree in computer science there. In 1987, he becomes a member of the Carnegie Mellon University faculty.

  2. 1993

    Causation, Prediction, and Search

    In 1993, he publishes Causation, Prediction, and Search with Clark Glymour and Richard Scheines. He leads the effort to prove that the team's causal discovery algorithms are theoretically reliable.

  3. 2001

    An anytime FCI algorithm

    In 2001, he publishes An Anytime Algorithm for Causal Inference in the proceedings of the Eighth International Workshop on Artificial Intelligence and Statistics. The paper proves that the FCI algorithm, which allows for hidden variables and selection bias, can be interrupted at any stage and still return output that is correct with probability one in the large sample limit.

  4. 2014

    A big-data causal center

    In 2014, Carnegie Mellon's Department of Philosophy partners with the University of Pittsburgh to form the Center for Causal Modeling and Discovery in the Biomedical Sciences, funded by a four-year, $11 million grant from the National Institutes of Health. He is among the department's philosophers working under the center.

  5. 2020

    A SAIL award for Tetrad

    In 2020, the Tetrad Automated Causal Discovery Platform, developed by him with Clark Glymour, Richard Scheines and Joe Ramsey, wins a Super Artificial Intelligence Leader (SAIL) award at the World Artificial Intelligence Conference in Shanghai. It is one of four projects chosen from over 800 nominees.

  6. 2021

    Head of CMU philosophy

    In 2021, he becomes head of Carnegie Mellon's Department of Philosophy, succeeding David Danks, and is named the first Marianna Brown Dietrich Professor.

  7. 2025

    Teaching AI to ask why

    In 2025, he and Kun Zhang lead an interdisciplinary Carnegie Mellon team that is teaching AI to understand the why behind complex problems. Their work on systems that identify causes aims at health care, education and generative AI, and belongs to the Department of Philosophy's CMU-CLeaR group.

  8. As of October 2026

    Marianna Brown Dietrich Professor

    In September 2026, Kevin Zollman succeeds him as head of the Department of Philosophy. He is the Marianna Brown Dietrich Professor of Philosophy and a leader of the CMU-CLeaR (Causal Learning and Reasoning) group.

Career

  1. Since 1987Carnegie Mellon UniversityFaculty member, Head
  2. From 2014Center for Causal Modeling and Discovery in the Biomedical Sciences

Education

  1. University of PittsburghPhD in history and philosophy of science

Sources and credits

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  1. Peter Spirtes To Head Carnegie Mellon's Department of Philosophy cmu.edu. Checked 22 October 2026.
  2. Philosophy's Tetrad Project Awarded International AI Honor cmu.edu. Checked 22 October 2026.
  3. Peter Spirtes - Department of Philosophy - Dietrich College of Humanities and Social Sciences - Carnegie Mellon University cmu.edu. Checked 22 October 2026.
  4. An Anytime Algorithm for Causal Inference proceedings.mlr.press. Checked 22 October 2026.
  5. Carnegie Mellon Philosophy Department Partners With Pitt To Maximize Data Science for Biomedical Research cmu.edu. Checked 22 October 2026.
  6. Philosophers Win Artificial Intelligence Award - Daily Nous dailynous.com. Checked 22 October 2026.
  7. Peter Spirtes Named Marianna Brown Dietrich Professor and Head of Philosophy cmu.edu. Checked 22 October 2026.
  8. Peacocks Eating Ice Cream: CMU Philosophers Teaching AI to Ask 'Why?' cmu.edu. Checked 22 October 2026.
  9. CMU CLeaR-Aether Group cmu.edu. Checked 22 October 2026.
  10. Kevin Zollman Named Head of Carnegie Mellon's Department of Philosophy cmu.edu. Checked 22 October 2026.