L1-inferencebasics

Nick jones inference control and driving of natural

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Unformatted text preview: Res, MSci, MSc). Nick Jones Inference, Control and Driving of Natural Systems The motivation for the course: Inference and Driving Living systems are out of equilibrium and, as such, must be driven. These systems must thus have a supply of energy. One can think of this as a setting with two statistical models: a model generating the world and the organism’s approximation to relevant parts of its world. The organism can make a more accurate model of the world but this will have a corresponding energetic cost. If the organism can construct a sufficiently accurate representation of the world then this can be exploited to help it find energy to drive itself. There is thus a very natural relationship between inference about the world and driving of natural systems. Nick Jones Inference, Control and Driving of Natural Systems The motivation for the course: Inference and Control It is often appropriate to think of the model describing the world having dynamics in its parameters: this means that the organism cannot make a static statistical model for the world but ideally controls that representation: e.g. by appropriately weighting its past information. As such we need to think of control and infe...
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