no code implementations • 4 Dec 2023 • Leonardo Novelli, Lionel Barnett, Anil Seth, Adeel Razi
We find that these models are minimum-phase for a wide range of physiologically plausible parameter values.
no code implementations • 18 Jan 2022 • Anil Seth, Tomasz Korbak, Alexander Tschantz
Bruineberg and colleagues helpfully distinguish between instrumental and ontological interpretations of Markov blankets, exposing the dangers of using the former to make claims about the latter.
no code implementations • 30 Aug 2021 • Beren Millidge, Anil Seth, Christopher L Buckley
The Free-Energy-Principle (FEP) is an influential and controversial theory which postulates a deep and powerful connection between the stochastic thermodynamics of self-organization and learning through variational inference.
no code implementations • 27 Jul 2021 • Beren Millidge, Anil Seth, Christopher L Buckley
Predictive coding offers a potentially unifying account of cortical function -- postulating that the core function of the brain is to minimize prediction errors with respect to a generative model of the world.
1 code implementation • 11 Mar 2021 • Beren Millidge, Anil Seth, Christopher Buckley
We propose a dichotomy in the objective functions underlying adaptive behaviour between \emph{evidence} objectives, which correspond to well-known reward or utility maximizing objectives in the literature, and \emph{divergence} objectives which instead seek to minimize the divergence between the agent's expected and desired futures, and argue that this new class of divergence objectives could form the mathematical foundation for a much richer understanding of the exploratory components of adaptive and intelligent action, beyond simply greedy utility maximization.
1 code implementation • 19 Feb 2021 • Beren Millidge, Alexander Tschantz, Anil Seth, Christopher Buckley
The Kalman filter is a fundamental filtering algorithm that fuses noisy sensory data, a previous state estimate, and a dynamics model to produce a principled estimate of the current state.
1 code implementation • 31 Dec 2020 • Aishwarya Ashok, Gail Zasowski, Anil Seth, Sten Hasselquist, Galen Bergsten, Olivia Cooper, Nicholas Boardman, Dmitry Bizyaev, Sofia Meneses Goytia, D. A. García-Hernández, Alexandre Roman-Lopes
This set of SSP templates is the highest resolution ($R\sim22500$) available in the near infrared, and the first such based on an empirical stellar library.
Astrophysics of Galaxies Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics
1 code implementation • 13 Oct 2020 • Beren Millidge, Alexander Tschantz, Anil Seth, Christopher L Buckley
The recently proposed Activation Relaxation (AR) algorithm provides a simple and robust approach for approximating the backpropagation of error algorithm using only local learning rules.
no code implementations • 2 Oct 2020 • Beren Millidge, Alexander Tschantz, Anil Seth, Christopher L Buckley
Predictive coding is an influential theory of cortical function which posits that the principal computation the brain performs, which underlies both perception and learning, is the minimization of prediction errors.