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Chrysoula Kosma

3 accepted papers

2026

Aitchison Embeddings for Learning Compositional Graph Representations

ICML 2026poster

Representation learning is central to graph machine learning, powering tasks such as link prediction and node classification. However, most graph embeddings are hard to interpret, offering limited insight into how learned features relate to graph structure. Many networks naturally admit a role-mixtu…

Cited by 0SourceScholar
2025

Signed Graph Autoencoder for Explainable and Polarization-Aware Network Embeddings

AISTATS 2025poster

Autoencoders based on Graph Neural Networks (GNNs) have garnered significant attention in recent years for their ability to learn informative latent representations of complex topologies, such as graphs. Despite the prevalence of Graph Autoencoders, there has been limited focus on developing and eva…

Cited by 5SourceScholar