Understanding and Improving Optimization in Predictive Coding Networks
Nicholas Alonso,
Jeffrey Krichmar,
Emre Neftci
Abstract:Backpropagation (BP), the standard learning algorithm for artificial neural networks, is often considered biologically implausible. In contrast, the standard learning algorithm for predictive coding (PC) models in neuroscience, known as the inference learning algorithm (IL), is a promising, bio-plausible alternative. However, several challenges and questions hinder IL's application to real-world problems. For example, IL is computationally demanding, and without memory-intensive optimizers like Adam, IL may co… Show more
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