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Active Inference and Uncertainty
Published on Aug 24, 20117442 Views
In this presentation, I will rehearse the free-energy formulation of action and perception, with a special focus on the representation of uncertainty: The free-energy principle is based upon the notio
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Chapter list
Abstract00:00
Intelectual architects02:45
Overview (1)03:57
What is the difference between a snowflake and a bird?05:09
What is the difference between snowfall and a flock of birds?06:41
But what is the entropy?08:10
But there is a small problem ... agents cannot measure their surprise10:06
What is free-energy?10:55
More formally (1)11:44
Hierarchal models in the brain14:28
So how do prediction errors change predictions?15:47
More formally (2)16:38
Summary19:20
Overview (2)20:08
Making bird songs with Lorenz attractors21:06
Predictive coding and message passing22:37
Perceptual categorization24:11
Hierarchical (itinerant) birdsong: sequences of sequences25:25
Simulated lesions and false inference26:54
Overview (3)29:47
Active inference30:04
Lotka-Volterra dynamics: winnerless competition35:45
Dopamine and precision (1)36:58
Dopamine and precision (2)37:44
Uncertainty and perseveration39:20
Salience / Proprioception / Affordance40:26
Uncertainly, delusions and confusion42:27
Thank you43:34