Gradient Expectations: Structure, Origins, and Synthesis of Predictive Neural Networks

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Keith L. Downing

Gradient Expectations

Structure, Origins, and Synthesis of Predictive Neural Networks

Keith L. Downing

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English

MIT Press
22 August 2023

Computing: general

An insightful investigation into the mechanisms underlying the predictive functions of neural networks-and their ability to chart a new path for AI.

An insightful investigation into the mechanisms underlying the predictive functions of neural networks-and their ability to chart a new path for AI.

Prediction is a cognitive advantage like few others, inherently linked to our ability to survive and thrive. Our brains are awash in signals that embody prediction. Can we extend this capability more explicitly into synthetic neural networks to improve the function of AI and enhance its place in our world? Gradient Expectations is a bold effort by Keith L. Downing to map the origins and anatomy of natural and artificial neural networks to explore how, when designed as predictive modules, their components might serve as the basis for the simulated evolution of advanced neural network systems.

Downing delves into the known neural architecture of the mammalian brain to illuminate the structure of predictive networks and determine more precisely how the ability to predict might have evolved from more primitive neural circuits. He then surveys past and present computational neural models that leverage predictive mechanisms with biological plausibility, identifying elements, such as gradients, that natural and artificial networks share. Behind well-founded predictions lie gradients, Downing finds, but of a different scope than those that belong to today's deep learning. Digging into the connections between predictions and gradients, and their manifestation in the brain and neural networks, is one compelling example of how Downing enriches both our understanding of such relationships and their role in strengthening AI tools.

Synthesizing critical research in neuroscience, cognitive science, and connectionism, Gradient Expectations offers unique depth and breadth of perspective on predictive neural-network models, including a grasp of predictive neural circuits that enables the integration of computational models of prediction with evolutionary algorithms.

By: Keith L. Downing
Imprint: MIT Press
Country of Publication: United States
Dimensions: Height: 229mm, Width: 178mm,
Weight: 369g
ISBN: 9780262545617
ISBN 10: 0262545616
Pages: 224
Publication Date: 22 August 2023
Audience: General/trade , ELT Advanced
Format: Paperback
Publisher's Status: Active

Preface xi Acknowledgments xv 1 Introduction 1 2 Conceptual Foundation of Prediction 11 3 Biological Foundations of Prediction 29 4 Neural Energy Networks 61 5 Predictive Coding 93 6 Emergence of Predictive Networks 117 7 Evolving Artificial Predictive Networks 149 8 Conclusion 187 Notes 195 References 197 Index 205

Keith L. Downing is Professor of Artificial Intelligence and Artificial Life at the Norwegian University of Science and Technology and the author of Intelligence Emerging- Adaptivity and Search in Evolving Neural Systems (MIT Press).