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Main Authors: Dejonghe, Hanne, Leroux, Sam
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2602.00116
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author Dejonghe, Hanne
Leroux, Sam
author_facet Dejonghe, Hanne
Leroux, Sam
contents Hyperdimensional computing (HDC) offers lightweight learning for energy-constrained devices by encoding data into high-dimensional vectors. However, its reliance on ultra-high dimensionality and static, randomly initialized hypervectors limits memory efficiency and learning capacity. Therefore, we propose Trainable Hyperdimensional Computing (THDC), which enables end-to-end HDC via backpropagation. THDC replaces randomly initialized vectors with trainable embeddings and introduces a one-layer binary neural network to optimize class representations. Evaluated on MNIST, Fashion-MNIST and CIFAR-10, THDC achieves equal or better accuracy than state-of-the-art HDC, with dimensionality reduced from 10.000 to 64.
format Preprint
id arxiv_https___arxiv_org_abs_2602_00116
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle THDC: Training Hyperdimensional Computing Models with Backpropagation
Dejonghe, Hanne
Leroux, Sam
Machine Learning
Hyperdimensional computing (HDC) offers lightweight learning for energy-constrained devices by encoding data into high-dimensional vectors. However, its reliance on ultra-high dimensionality and static, randomly initialized hypervectors limits memory efficiency and learning capacity. Therefore, we propose Trainable Hyperdimensional Computing (THDC), which enables end-to-end HDC via backpropagation. THDC replaces randomly initialized vectors with trainable embeddings and introduces a one-layer binary neural network to optimize class representations. Evaluated on MNIST, Fashion-MNIST and CIFAR-10, THDC achieves equal or better accuracy than state-of-the-art HDC, with dimensionality reduced from 10.000 to 64.
title THDC: Training Hyperdimensional Computing Models with Backpropagation
topic Machine Learning
url https://arxiv.org/abs/2602.00116