pith:B4GAKXG7
Encoding Robust Topological Signatures for Hyperdimensional Computing
Topology-guided hyperdimensional computing resists image corruptions by encoding holes and rotation-invariant shape signatures.
arxiv:2605.16785 v1 · 2026-05-16 · cs.CV · cs.AI
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Topology-guided HD computing substantially improves robustness compared with a naive HD baseline, maintaining high accuracy across multiple corruption families and benefiting from lightweight online training. Compared with a compact CNN trained on clean data, our method achieves competitive clean accuracy while offering markedly stronger robustness to several pixel-level corruptions.
That holes and other topological primitives can be reliably extracted from binarized shapes even under the tested corruptions (rotation, Gaussian noise, salt-and-pepper, cutout, zoom) and that the chosen RTS-invariant descriptors (spatial-pyramid Zernike and intrinsic Fourier radial signatures) preserve the information needed for discrimination.
Topology-guided HD computing encodes discrete holes and RTS-invariant descriptors (Zernike for outer shape, Fourier for holes) into hypervectors with learned reliability weights, yielding substantially higher robustness on corrupted MNIST/EMNIST than naive HD baselines while matching compact CNNs on
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| First computed | 2026-05-20T00:03:21.872417Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
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Canonical record JSON
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