Seminar: Machine Learning Seminar

ECE Women Community

Hyperbolic Diffusion Embedding and Distance for Hierarchical Representation Learning

Date: April,03,2024 Start Time: 10:30 - 11:30
Location: 1061, Meyer Building
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Lecturer: Ya-Wei Lin
Finding meaningful representations and distances of hierarchical data is important in many fields. This paper presents a new method for hierarchical data embedding and distance. Our method relies on combining diffusion geometry, a central approach to manifold learning, and hyperbolic geometry. Specifically, using diffusion geometry, we build multi-scale densities on the data, aim to reveal their hierarchical structure, and then embed them into a product of hyperbolic spaces. We show theoretically that our embedding and distance recover the underlying hierarchical structure. In addition, we demonstrate the efficacy of the proposed method and its advantages compared to existing methods on graph embedding benchmarks and hierarchical datasets.

Ph.D. Under the supervision of Prof. Ronen Talmon.


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