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Main Authors: Rao, Abinav, Wa, Alex, Athavale, Rishi
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.03464
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author Rao, Abinav
Wa, Alex
Athavale, Rishi
author_facet Rao, Abinav
Wa, Alex
Athavale, Rishi
contents We introduce Graph Hopfield Networks, whose energy function couples associative memory retrieval with graph Laplacian smoothing for node classification. Gradient descent on this joint energy yields an iterative update interleaving Hopfield retrieval with Laplacian propagation. Memory retrieval provides regime-dependent benefits: up to 2.0~pp on sparse citation networks and up to 5 pp additional robustness under feature masking; the iterative energy-descent architecture itself is a strong inductive bias, with all variants (including the memory-disabled NoMem ablation) outperforming standard baselines on Amazon co-purchase graphs. Tuning enables graph sharpening for heterophilous benchmarks without architectural changes.
format Preprint
id arxiv_https___arxiv_org_abs_2603_03464
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Graph Hopfield Networks: Energy-Based Node Classification with Associative Memory
Rao, Abinav
Wa, Alex
Athavale, Rishi
Machine Learning
Artificial Intelligence
Information Retrieval
We introduce Graph Hopfield Networks, whose energy function couples associative memory retrieval with graph Laplacian smoothing for node classification. Gradient descent on this joint energy yields an iterative update interleaving Hopfield retrieval with Laplacian propagation. Memory retrieval provides regime-dependent benefits: up to 2.0~pp on sparse citation networks and up to 5 pp additional robustness under feature masking; the iterative energy-descent architecture itself is a strong inductive bias, with all variants (including the memory-disabled NoMem ablation) outperforming standard baselines on Amazon co-purchase graphs. Tuning enables graph sharpening for heterophilous benchmarks without architectural changes.
title Graph Hopfield Networks: Energy-Based Node Classification with Associative Memory
topic Machine Learning
Artificial Intelligence
Information Retrieval
url https://arxiv.org/abs/2603.03464