Deep-layered machines have a built-in Occam's razor
- ๐ค Speaker: Thomas Fink (Director, The London Institute for Mathematical Sciences)
- ๐ Date & Time: Wednesday 11 March 2026, 12:00 - 13:00
- ๐ Venue: Computer Laboratory, William Gates Building, Room FW26
Abstract
Input-output maps are prevalent throughout science and technology. They are empirically observed to be biased towards simple outputs, but we donโt understand why. To address this puzzle, we study the archetypal input-output map: a deep-layered machine in which every node is a Boolean function of all the nodes below it. We give an exact theory for the distribution of outputs, and we confirm our predictions through extensive computer experiments. As the network depth increases, the distribution becomes exponentially biased towards simple outputs. This suggests that deep-layered machines and other learning methodologies may be inherently biased towards simplicity in the models that they generate.
Zoom link for online participants, Meeting ID: 659 082 2098 Passcode: 1dYRka
Series This talk is part of the Artificial Intelligence Research Group Talks (Computer Laboratory) series.
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Thomas Fink (Director, The London Institute for Mathematical Sciences)
Wednesday 11 March 2026, 12:00-13:00