Hydra - a method for strain-minimizing hyperbolic embedding of network- and distance-based data

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Martin Keller-Ressel - (Author)
  • Stephanie Nargang - (Author)

Abstract

We introduce hydra (hyperbolic distance recovery and approximation), a new method for embedding network- or distance-based data into hyperbolic space. We show mathematically that hydra satisfies a certain optimality guarantee: it minimizes the 'hyperbolic strain' between original and embedded data points. Moreover, it is able to recover points exactly, when they are contained in a low-dimensional hyperbolic subspace of the feature space. Testing on real network data we show that the embedding quality of hydra is competitive with existing hyperbolic embedding methods, but achieved at substantially shorter computation time. An extended method, termed hydra+, typically outperforms existing methods in both computation time and embedding quality.

Details

Original languageEnglish
Article number002
Number of pages18
JournalJournal of complex networks
Volume8
Issue number1
Publication statusPublished - Feb 2020
Peer-reviewedYes

External IDs

Scopus 85081967632

Keywords

Keywords

  • network embedding, hyperbolic embedding, dimensionality reduction, hyperbolic geometry