no code implementations • 4 Sep 2022 • Martin Biehl, Nathaniel Virgo
To do this we make use of the existing theory of partially observable Markov processes (POMDPs): we say that a system can be interpreted as a solution to a POMDP if it not only admits an interpretation map describing its beliefs about the hidden state of a POMDP but also takes actions that are optimal according to its belief state.
no code implementations • 27 Dec 2021 • Nathaniel Virgo, Martin Biehl, Simon McGregor
A central concept in active inference is that the internal states of a physical system parametrise probability measures over states of the external world.
no code implementations • 12 Dec 2018 • Nicholas Guttenberg, Nathaniel Virgo, Alexandra Penn
In this paper, we hope to bridge that gap by reviewing common barriers to open-endedness in the evolution-inspired approach and how they are dealt with in the evolutionary case - collapse of diversity, saturation of complexity, and failure to form new kinds of individuality.
1 code implementation • 1 Jun 2018 • Nicholas Guttenberg, Martin Biehl, Nathaniel Virgo, Ryota Kanai
We investigate the use of attentional neural network layers in order to learn a `behavior characterization' which can be used to drive novelty search and curiosity-based policies.
2 code implementations • 14 Dec 2016 • Nicholas Guttenberg, Nathaniel Virgo, Olaf Witkowski, Hidetoshi Aoki, Ryota Kanai
The introduction of convolutional layers greatly advanced the performance of neural networks on image tasks due to innately capturing a way of encoding and learning translation-invariant operations, matching one of the underlying symmetries of the image domain.
no code implementations • 11 Nov 2013 • Tom Froese, Nathaniel Virgo, Takashi Ikegami
On this view, self-movement, adaptive behavior and morphological changes could have already been present at the origin of life.