Researcher

Peter Flach

Peter Flach researches the evaluation and improvement of machine-learning models. He also writes books that explain logical reasoning and learning from data. Flach wrote Simply Logical: Intelligent Reasoning by Example. Simply Logical later appeared as an interactive online edition in 2022. Flach joined Bristol’s computer science department in 1997 and became professor of artificial intelligence in 2003. Flach authored Machine Learning: The Art and Science of Algorithms that Make Sense of Data, published by Cambridge University Press. His research also covers model evaluation and structured-data learning.

Now at
University of Bristol
Works
393
Citations
16,433
h-index
62

Publication numbers from OpenAlex, as of 14 October 2026.

Photo of Peter Flach

Timeline

  1. 1994

    A book on logical reasoning

    Flach wrote Simply Logical: Intelligent Reasoning by Example. Simply Logical later appeared as an interactive online edition in 2022.

  2. 1997–2003

    Career at Bristol

    Flach joined Bristol’s computer science department in 1997 and became professor of artificial intelligence in 2003.

  3. 2010–2020

    Research editing and training

    He edited the Machine Learning journal from 2010 to 2020. He also led doctoral-training centers in interactive and practice-oriented AI.

  4. 2012

    Explaining machine learning

    Flach authored Machine Learning: The Art and Science of Algorithms that Make Sense of Data, published by Cambridge University Press. His research also covers model evaluation and structured-data learning.

Sources and credits

Photo: ellis.eu; Peter Flach profile photograph; creator not stated. License: Not stated by source. Source: ellis.eu. Cropped to a square and resized. Ask us to remove or replace this photo.

  1. Peter Flach cs.bris.ac.uk. Checked 13 October 2026.