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Aurélie C. Lozano

2 accepted papers

2023

Direction Aware Positional and Structural Encoding for Directed Graph Neural Networks

ICASSP 2023accepted

We propose a novel method for computing joint 2-node structural representations for link prediction in directed graphs. Existing approaches can be grouped into two families. The first group of methods learn structural embeddings of individual nodes in the entire graph through a directed Graph Neural…

Cited by 0SourceScholar
2017

Sparse + Group-Sparse Dirty Models: Statistical Guarantees without Unreasonable Conditions and a Case for Non-Convexity

ICML 2017poster

Imposing sparse + group-sparse superposition structures in high-dimensional parameter estimation is known to provide flexible regularization that is more realistic for many real-world problems. For example, such a superposition enables partially-shared support sets in multi-task learning, thereby st…

Cited by 5SourcePDFScholar