Search Results for author: James Liley

Found 4 papers, 2 papers with code

Safe machine learning model release from Trusted Research Environments: The AI-SDC package

1 code implementation2 Dec 2022 Jim Smith, Richard J. Preen, Andrew McCarthy, Alba Crespi-Boixader, James Liley, Simon Rogers

We present AI-SDC, an integrated suite of open source Python tools to facilitate Statistical Disclosure Control (SDC) of Machine Learning (ML) models trained on confidential data prior to public release.

Holdouts set for predictive model updating

no code implementations13 Feb 2022 Sami Haidar-Wehbe, Samuel R Emerson, Louis J M Aslett, James Liley

To address this, we propose updating using a `holdout set' - a subset of the population that does not receive interventions guided by the risk score.

Holdout Set

Model updating after interventions paradoxically introduces bias

1 code implementation22 Oct 2020 James Liley, Samuel R Emerson, Bilal A Mateen, Catalina A Vallejos, Louis J M Aslett, Sebastian J Vollmer

Recent discussions have highlighted potential problems in the updating of a predictive score for a binary outcome when an existing predictive score forms part of the standard workflow, driving interventions.

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