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Riemann2: Learning Riemannian Submanifolds from Riemannian Data
Bosch center for AI.
DBtune.
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Robotics, Perception and Learning, RPL.ORCID iD: 0000-0003-3565-9414
Technical University of Denmark.
2025 (English)In: Proceedings of the 28th International Conference on Artificial Intelligence and Statistics (AISTATS), 2025, Vol. 258Conference paper, Published paper (Refereed)
Abstract [en]

Latent variable models are powerful tools for learning low-dimensional manifolds from high-dimensional data. However, when dealing with constrained data such as unit-norm vectors or symmetric positive-definite matrices, existing approaches ignore the underlying geometric constraints or fail to provide meaningful metrics in the latent space. To address these limitations, we propose to learn Riemannian latent representations of such geometric data.To do so, we estimate the pullback metric induced by a Wrapped Gaussian Process Latent Variable Model, which explicitly accounts for the data geometry. This enables us to define geometry-aware notions of distance and shortest paths in the latent space, while ensuring that our model only assigns probability mass to the data manifold. This generalizes previous work and allows us to handle complex tasks in various domains, including robot motion synthesis and analysis of brain connectomes.

Place, publisher, year, edition, pages
2025. Vol. 258
Keywords [en]
Wrapped GPLVM, Riemannian manifolds, pullback metrics
National Category
Robotics and automation
Identifiers
URN: urn:nbn:se:kth:diva-361128OAI: oai:DiVA.org:kth-361128DiVA, id: diva2:1943998
Conference
International Conference on Artificial Intelligence and Statistics (AISTATS), Mai Khao, Thailand, May 3-5, 2025
Available from: 2025-03-12 Created: 2025-03-12 Last updated: 2025-03-18

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fulltext(6533 kB)39 downloads
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Jaquier, Noémie

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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