Search Results for author: Aldo Faisal

Found 11 papers, 2 papers with code

Bag of Policies for Distributional Deep Exploration

no code implementations3 Aug 2023 Asen Nachkov, Luchen Li, Giulia Luise, Filippo Valdettaro, Aldo Faisal

To test whether optimistic ensemble method can improve on distributional RL as did on scalar RL, by e. g. Bootstrapped DQN, we implement the BoP approach with a population of distributional actor-critics using Bayesian Distributional Policy Gradients (BDPG).

Atari Games Efficient Exploration +2

Breaking Bad News in the Era of Artificial Intelligence and Algorithmic Medicine: An Exploration of Disclosure and its Ethical Justification using the Hedonic Calculus

no code implementations23 Jun 2022 Benjamin Post, Cosmin Badea, Aldo Faisal, Stephen J. Brett

An appropriate ethical framework around the use of Artificial Intelligence (AI) in healthcare has become a key desirable with the increasingly widespread deployment of this technology.

HemCNN: Deep Learning enables decoding of fNIRS cortical signals in hand grip motor tasks

no code implementations9 Mar 2021 Pablo Ortega, Aldo Faisal

We solve the fNIRS left/right hand force decoding problem using a data-driven approach by using a convolutional neural network architecture, the HemCNN.

EEG Electroencephalogram (EEG)

CNNATT: Deep EEG & fNIRS Real-Time Decoding of bimanual forces

no code implementations9 Mar 2021 Pablo Ortega, Tong Zhao, Aldo Faisal

Non-invasive cortical neural interfaces have only achieved modest performance in cortical decoding of limb movements and their forces, compared to invasive brain-computer interfaces (BCIs).

EEG Electroencephalogram (EEG)

Semantic RL with Action Grammars: Data-Efficient Learning of Hierarchical Task Abstractions

1 code implementation29 Jul 2019 Robert Tjarko Lange, Aldo Faisal

By treating an on-policy trajectory as a sentence sampled from the policy-conditioned language of the environment, we identify hierarchical constituents with the help of unsupervised grammatical inference.

Hierarchical Reinforcement Learning Logical Reasoning +3

RLOC: Neurobiologically Inspired Hierarchical Reinforcement Learning Algorithm for Continuous Control of Nonlinear Dynamical Systems

no code implementations7 Mar 2019 Ekaterina Abramova, Luke Dickens, Daniel Kuhn, Aldo Faisal

We show that a small number of locally optimal linear controllers are able to solve global nonlinear control problems with unknown dynamics when combined with a reinforcement learner in this hierarchical framework.

Continuous Control Hierarchical Reinforcement Learning +3

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.

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