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math.CT2024
Copy-composition for Probabilistic Graphical Models
Toby St Clere Smithe
In probabilistic modelling, joint distributions are often of more interest than their marginals, but the standard composition of stochastic channels is defined by marginalization.…
math.CT2023★ 5 cited
Active Inference in String Diagrams: A Categorical Account of Predictive Processing and Free Energy
Sean Tull, Johannes Kleiner, Toby St Clere Smithe
We present a categorical formulation of the cognitive frameworks of Predictive Processing and Active Inference, expressed in terms of string diagrams interpreted in a monoidal cate…