Search Results for author: Elaine Lau

Found 6 papers, 2 papers with code

QGFN: Controllable Greediness with Action Values

no code implementations7 Feb 2024 Elaine Lau, Stephen Zhewen Lu, Ling Pan, Doina Precup, Emmanuel Bengio

Generative Flow Networks (GFlowNets; GFNs) are a family of reward/energy-based generative methods for combinatorial objects, capable of generating diverse and high-utility samples.

Reinforcement Learning (RL)

DGFN: Double Generative Flow Networks

no code implementations30 Oct 2023 Elaine Lau, Nikhil Vemgal, Doina Precup, Emmanuel Bengio

Deep learning is emerging as an effective tool in drug discovery, with potential applications in both predictive and generative models.

Drug Discovery Q-Learning +1

An Empirical Study of the Effectiveness of Using a Replay Buffer on Mode Discovery in GFlowNets

no code implementations15 Jul 2023 Nikhil Vemgal, Elaine Lau, Doina Precup

GFlowNets are a special class of algorithms designed to generate diverse candidates, $x$, from a discrete set, by learning a policy that approximates the proportional sampling of $R(x)$.

Drug Discovery Reinforcement Learning (RL)

Towards Safe Mechanical Ventilation Treatment Using Deep Offline Reinforcement Learning

1 code implementation5 Oct 2022 Flemming Kondrup, Thomas Jiralerspong, Elaine Lau, Nathan de Lara, Jacob Shkrob, My Duc Tran, Doina Precup, Sumana Basu

We design a clinically relevant intermediate reward that encourages continuous improvement of the patient vitals as well as addresses the challenge of sparse reward in RL.

Q-Learning reinforcement-learning +1

Policy Gradients Incorporating the Future

no code implementations ICLR 2022 David Venuto, Elaine Lau, Doina Precup, Ofir Nachum

Reasoning about the future -- understanding how decisions in the present time affect outcomes in the future -- is one of the central challenges for reinforcement learning (RL), especially in highly-stochastic or partially observable environments.

Offline RL Reinforcement Learning (RL)

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