Search Results for author: Matthieu Komorowski

Found 14 papers, 3 papers with code

Optimizing Sequential Medical Treatments with Auto-Encoding Heuristic Search in POMDPs

no code implementations17 May 2019 Luchen Li, Matthieu Komorowski, Aldo A. Faisal

Health-related data is noisy and stochastic in implying the true physiological states of patients, limiting information contained in single-moment observations for sequential clinical decision making.

Decision Making

Understanding the Artificial Intelligence Clinician and optimal treatment strategies for sepsis in intensive care

no code implementations6 Mar 2019 Matthieu Komorowski, Leo A. Celi, Omar Badawi, Anthony C. Gordon, A. Aldo Faisal

In this document, we explore in more detail our published work (Komorowski, Celi, Badawi, Gordon, & Faisal, 2018) for the benefit of the AI in Healthcare research community.

Behaviour Policy Estimation in Off-Policy Policy Evaluation: Calibration Matters

no code implementations3 Jul 2018 Aniruddh Raghu, Omer Gottesman, Yao Liu, Matthieu Komorowski, Aldo Faisal, Finale Doshi-Velez, Emma Brunskill

In this work, we consider the problem of estimating a behaviour policy for use in Off-Policy Policy Evaluation (OPE) when the true behaviour policy is unknown.

The Actor Search Tree Critic (ASTC) for Off-Policy POMDP Learning in Medical Decision Making

no code implementations29 May 2018 Luchen Li, Matthieu Komorowski, Aldo A. Faisal

We capture this situation with partially observable Markov decision process, in which an agent optimises its actions in a belief represented as a distribution of patient states inferred from individual history trajectories.

Decision Making

Continuous State-Space Models for Optimal Sepsis Treatment - a Deep Reinforcement Learning Approach

no code implementations23 May 2017 Aniruddh Raghu, Matthieu Komorowski, Leo Anthony Celi, Peter Szolovits, Marzyeh Ghassemi

In this work, we propose a new approach to deduce optimal treatment policies for septic patients by using continuous state-space models and deep reinforcement learning.

Decision Making Reinforcement Learning (RL)

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