1 code implementation • 11 Sep 2020 • Beren Millidge, Alexander Tschantz, Anil. K. Seth, Christopher L. Buckley
The backpropagation of error algorithm (backprop) has been instrumental in the recent success of deep learning.
no code implementations • 11 Jul 2020 • Alexander Tschantz, Beren Millidge, Anil. K. Seth, Christopher L. Buckley
The field of reinforcement learning can be split into model-based and model-free methods.
no code implementations • 23 Jun 2020 • Beren Millidge, Alexander Tschantz, Anil. K. Seth, Christopher L. Buckley
Active Inference (AIF) is an emerging framework in the brain sciences which suggests that biological agents act to minimise a variational bound on model evidence.
no code implementations • 13 Jun 2020 • Beren Millidge, Alexander Tschantz, Anil. K. Seth, Christopher L. Buckley
There are several ways to categorise reinforcement learning (RL) algorithms, such as either model-based or model-free, policy-based or planning-based, on-policy or off-policy, and online or offline.
1 code implementation • 17 Apr 2020 • Fernando E. Rosas, Pedro A. M. Mediano, Henrik J. Jensen, Anil. K. Seth, Adam B. Barrett, Robin L. Carhart-Harris, Daniel Bor
The broad concept of emergence is instrumental in various of the most challenging open scientific questions -- yet, few quantitative theories of what constitutes emergent phenomena have been proposed.
no code implementations • 28 Feb 2020 • Alexander Tschantz, Beren Millidge, Anil. K. Seth, Christopher L. Buckley
The central tenet of reinforcement learning (RL) is that agents seek to maximize the sum of cumulative rewards.
no code implementations • 24 Nov 2019 • Alexander Tschantz, Manuel Baltieri, Anil. K. Seth, Christopher L. Buckley
In reinforcement learning (RL), agents often operate in partially observed and uncertain environments.
1 code implementation • 5 Sep 2019 • Pedro A. M. Mediano, Fernando Rosas, Robin L. Carhart-Harris, Anil. K. Seth, Adam B. Barrett
Most information dynamics and statistical causal analysis frameworks rely on the common intuition that causal interactions are intrinsically pairwise -- every 'cause' variable has an associated 'effect' variable, so that a 'causal arrow' can be drawn between them.
Neurons and Cognition Data Analysis, Statistics and Probability