Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning

Abstract Artificial neural networks (ANNs) are at the core of most Deep Learning (DL) algorithms that successfully tackle complex problems like image recognition, autonomous driving, and natural language processing. However, unlike biological brains who tackle similar problems in a very efficient ma...

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Main Authors: Spyridon Chavlis, Panayiota Poirazi
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-56297-9
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author Spyridon Chavlis
Panayiota Poirazi
author_facet Spyridon Chavlis
Panayiota Poirazi
author_sort Spyridon Chavlis
collection DOAJ
description Abstract Artificial neural networks (ANNs) are at the core of most Deep Learning (DL) algorithms that successfully tackle complex problems like image recognition, autonomous driving, and natural language processing. However, unlike biological brains who tackle similar problems in a very efficient manner, DL algorithms require a large number of trainable parameters, making them energy-intensive and prone to overfitting. Here, we show that a new ANN architecture that incorporates the structured connectivity and restricted sampling properties of biological dendrites counteracts these limitations. We find that dendritic ANNs are more robust to overfitting and match or outperform traditional ANNs on several image classification tasks while using significantly fewer trainable parameters. These advantages are likely the result of a different learning strategy, whereby most of the nodes in dendritic ANNs respond to multiple classes, unlike classical ANNs that strive for class-specificity. Our findings suggest that the incorporation of dendritic properties can make learning in ANNs more precise, resilient, and parameter-efficient and shed new light on how biological features can impact the learning strategies of ANNs.
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institution Kabale University
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spelling doaj-art-aba7a47ddb70485bb4f28343941dadf62025-01-26T12:42:19ZengNature PortfolioNature Communications2041-17232025-01-0116111710.1038/s41467-025-56297-9Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learningSpyridon Chavlis0Panayiota Poirazi1Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-HellasInstitute of Molecular Biology and Biotechnology, Foundation for Research and Technology-HellasAbstract Artificial neural networks (ANNs) are at the core of most Deep Learning (DL) algorithms that successfully tackle complex problems like image recognition, autonomous driving, and natural language processing. However, unlike biological brains who tackle similar problems in a very efficient manner, DL algorithms require a large number of trainable parameters, making them energy-intensive and prone to overfitting. Here, we show that a new ANN architecture that incorporates the structured connectivity and restricted sampling properties of biological dendrites counteracts these limitations. We find that dendritic ANNs are more robust to overfitting and match or outperform traditional ANNs on several image classification tasks while using significantly fewer trainable parameters. These advantages are likely the result of a different learning strategy, whereby most of the nodes in dendritic ANNs respond to multiple classes, unlike classical ANNs that strive for class-specificity. Our findings suggest that the incorporation of dendritic properties can make learning in ANNs more precise, resilient, and parameter-efficient and shed new light on how biological features can impact the learning strategies of ANNs.https://doi.org/10.1038/s41467-025-56297-9
spellingShingle Spyridon Chavlis
Panayiota Poirazi
Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning
Nature Communications
title Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning
title_full Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning
title_fullStr Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning
title_full_unstemmed Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning
title_short Dendrites endow artificial neural networks with accurate, robust and parameter-efficient learning
title_sort dendrites endow artificial neural networks with accurate robust and parameter efficient learning
url https://doi.org/10.1038/s41467-025-56297-9
work_keys_str_mv AT spyridonchavlis dendritesendowartificialneuralnetworkswithaccuraterobustandparameterefficientlearning
AT panayiotapoirazi dendritesendowartificialneuralnetworkswithaccuraterobustandparameterefficientlearning