Control flow in active inference systems Part II: Tensor networks as general models of control flow

Living systems face both environmental complexity and limited access to free-energy resources. Survival under these conditions requires a control system that can activate, or deploy, available perception and action resources in a context specific way. In Part I, we introduced the free-energy princip...

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Bibliographic Details
Published in:IEEE transactions on molecular, biological, and multi-scale communications biological, and multi-scale communications, 2023-06, Vol.9 (2), p.1-1
Main Authors: Fields, Chris, Fabrocini, Filippo, Friston, Karl, Glazebrook, James F., Hazan, Hananel, Levin, Michael, Marciano, Antonino
Format: Article
Language:English
Subjects:
Active control
Bayesian mechanics
Biological effects
Control systems
Dynamic attractor
Energy sources
Entropy
Free energy
Free-energy principle
Geometry
Gravity
Inference
Mathematical analysis
Neural networks
Quantum entanglement
Quantum mechanics
Quantum reference frame
Scale-free model
Tensors
Topological quantum field theory
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Summary:Living systems face both environmental complexity and limited access to free-energy resources. Survival under these conditions requires a control system that can activate, or deploy, available perception and action resources in a context specific way. In Part I, we introduced the free-energy principle (FEP) and the idea of active inference as Bayesian prediction-error minimization, and show how the control problem arises in active inference systems. We then review classical and quantum formulations of the FEP, with the former being the classical limit of the latter. In this accompanying Part II, we show that when systems are described as executing active inference driven by the FEP, their control flow systems can always be represented as tensor networks (TNs). We show how TNs as control systems can be implemented within the general framework of quantum topological neural networks, and discuss the implications of these results for modeling biological systems at multiple scales.
ISSN:2372-2061
2372-2061
DOI:10.1109/TMBMC.2023.3272158