no code implementations • NeurIPS 2021 • Daniel Jarrett, Ioana Bica, Mihaela van der Schaar
In this work, we study a generative framework that seeks to combine the strengths of both: Motivated by a moment-matching objective to mitigate compounding error, we optimize a local (but forward-looking) transition policy, where the reinforcement signal is provided by a global (but stepwise-decomposable) energy model trained by contrastive estimation.
2 code implementations • NeurIPS 2021 • Ioana Bica, Daniel Jarrett, Mihaela van der Schaar
By leveraging data from multiple environments, we propose Invariant Causal Imitation Learning (ICIL), a novel technique in which we learn a feature representation that is invariant across domains, on the basis of which we learn an imitation policy that matches expert behavior.
1 code implementation • ICLR 2021 • Alihan Hüyük, Daniel Jarrett, Mihaela van der Schaar
Understanding human behavior from observed data is critical for transparency and accountability in decision-making.
1 code implementation • ICLR 2021 • Daniel Jarrett, Jinsung Yoon, Ioana Bica, Zhaozhi Qian, Ari Ercole, Mihaela van der Schaar
Despite exponential growth in electronic patient data, there is a remarkable gap between the potential and realized utilization of ML for clinical research and decision support.
no code implementations • 28 Oct 2023 • Daniel Jarrett, Alihan Hüyük, Mihaela van der Schaar
Consider learning a decision support assistant to serve as an intermediary between (oracle) expert behavior and (imperfect) human behavior: At each time, the algorithm observes an action chosen by a fallible agent, and decides whether to *accept* that agent's decision, *intervene* with an alternative, or *request* the expert's opinion.
no code implementations • 28 Oct 2023 • Daniel Jarrett, Alihan Hüyük, Mihaela van der Schaar
Decision analysis deals with modeling and enhancing decision processes.
no code implementations • 18 Nov 2022 • Daniel Jarrett, Corentin Tallec, Florent Altché, Thomas Mesnard, Rémi Munos, Michal Valko
In this work, we study a natural solution derived from structural causal models of the world: Our key idea is to learn representations of the future that capture precisely the unpredictable aspects of each outcome -- which we use as additional input for predictions, such that intrinsic rewards only reflect the predictable aspects of world dynamics.
1 code implementation • 15 Jun 2022 • Daniel Jarrett, Bogdan Cebere, Tennison Liu, Alicia Curth, Mihaela van der Schaar
Consider the problem of imputing missing values in a dataset.
no code implementations • NeurIPS 2021 • Yuchao Qin, Fergus Imrie, Alihan Hüyük, Daniel Jarrett, alexander gimson, Mihaela van der Schaar
Significant effort has been placed on developing decision support tools to improve patient care.
2 code implementations • 13 Jul 2021 • Alihan Hüyük, Daniel Jarrett, Mihaela van der Schaar
Understanding a decision-maker's priorities by observing their behavior is critical for transparency and accountability in decision processes, such as in healthcare.
1 code implementation • 8 Jun 2021 • Alex J. Chan, Ioana Bica, Alihan Huyuk, Daniel Jarrett, Mihaela van der Schaar
Understanding decision-making in clinical environments is of paramount importance if we are to bring the strengths of machine learning to ultimately improve patient outcomes.
1 code implementation • 23 Jul 2020 • James Jordon, Daniel Jarrett, Jinsung Yoon, Tavian Barnes, Paul Elbers, Patrick Thoral, Ari Ercole, Cheng Zhang, Danielle Belgrave, Mihaela van der Schaar
The clinical time-series setting poses a unique combination of challenges to data modeling and sharing.
no code implementations • ICLR 2021 • Ioana Bica, Daniel Jarrett, Alihan Hüyük, Mihaela van der Schaar
Building interpretable parameterizations of real-world decision-making on the basis of demonstrated behavior -- i. e. trajectories of observations and actions made by an expert maximizing some unknown reward function -- is essential for introspecting and auditing policies in different institutions.
1 code implementation • NeurIPS 2020 • Daniel Jarrett, Ioana Bica, Mihaela van der Schaar
Through experiments with application to control and healthcare settings, we illustrate consistent performance gains over existing algorithms for strictly batch imitation learning.
no code implementations • ICML 2020 • Daniel Jarrett, Mihaela van der Schaar
Finally, we illustrate how this formulation enables understanding decision-making behavior by quantifying preferences implicit in observed decision strategies (the inverse problem).
no code implementations • ICLR 2020 • Daniel Jarrett, Mihaela van der Schaar
Autoencoder-based learning has emerged as a staple for disciplining representations in unsupervised and semi-supervised settings.
1 code implementation • 12 Jan 2020 • Yao Zhang, Daniel Jarrett, Mihaela van der Schaar
In this paper, we propose a novel Bayesian optimization (BO) algorithm to tackle the challenge of model selection in this setting.
no code implementations • NeurIPS 2019 • Jinsung Yoon, Daniel Jarrett, M Van Der Schaar
A good generative model for time-series data should preserve temporal dynamics, in the sense that new sequences respect the original relationships between variables across time.
1 code implementation • 1 Dec 2019 • Jinsung Yoon, Daniel Jarrett, Mihaela van der Schaar
A good generative model for time-series data should preservetemporal dynamics, in the sense that new sequences respect the original relationships between variablesacross time.
no code implementations • 26 Nov 2018 • Daniel Jarrett, Jinsung Yoon, Mihaela van der Schaar
Accurate prediction of disease trajectories is critical for early identification and timely treatment of patients at risk.