no code implementations • 23 Feb 2024 • Martin Benfeghoul, Umais Zahid, Qinghai Guo, Zafeirios Fountas
In an unfamiliar setting, a model-based reinforcement learning agent can be limited by the accuracy of its world model.
no code implementations • 22 Nov 2023 • Umais Zahid, Qinghai Guo, Zafeirios Fountas
We present a novel algorithm for parameter learning in generic deep generative models that builds upon the predictive coding (PC) framework of computational neuroscience.
no code implementations • 5 Apr 2023 • Umais Zahid, Qinghai Guo, Zafeirios Fountas
Backpropagation has rapidly become the workhorse credit assignment algorithm for modern deep learning methods.
no code implementations • 9 Mar 2023 • Umais Zahid, Qinghai Guo, Karl Friston, Zafeirios Fountas
In part, this has been due to the poor performance of models trained with PC when evaluated by both sample quality and marginal likelihood.