framework
active
framework:free-energy-approach-to-pattern-regulationFree Energy Approach To Pattern Regulation
Application of free-energy principle to understand pattern regulation in biological systems (Friston et al. 2015).
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framework
- Active InferenceextendsFoundational framework by Karl Friston; the paper extends it to three hierarchical levels for modeling meta-awareness.
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- Active maintenance and restoration of correct anatomical pattern; central to morphogenesis and regeneration.
- A foundational variational principle from statistical physics that formalizes how self-organizing systems maintain structural integrity and adapt to their environment by minimizing free energy—a mathematical bound on surprise or prediction error. Originally developed by Karl Friston, the framework unifies action, perception, and learning as processes of active inference, where systems both update internal models of the world and act upon it to reduce the divergence between predictions and observations.
- Optimization procedure for simultaneously updating action selection and perception; uses step size ζ (default 4).
- Thermodynamic potential ΔF = ΔE − TΔS; domain walls form if ΔF < 0
- Minimizing variational free energy for perceptual inference and learning of model parameters.
- Minimizing expected free energy for planning, decision-making, and action selection.
- Differentiation of the thesis from Friston's FEP to avoid the rock problem
- Physical quantity sharing same minimum as variational free energy (via Jarzynski equality); proxy for computational cost