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Mahalakshmi Sabanayagam

3 accepted papers

2025

Exact Certification of (Graph) Neural Networks Against Label Poisoning

ICLR 2025spotlight

Machine learning models are highly vulnerable to label flipping, i.e., the adversarial modification (poisoning) of training labels to compromise performance. Thus, deriving robustness certificates is important to guarantee that test predictions remain unaffected and to understand worst-case robustne…

2023

Improved Representation Learning Through Tensorized Autoencoders

AISTATS 2023poster

The central question in representation learning is what constitutes a good or meaningful representation. In this work we argue that if we consider data with inherent cluster structures, where clusters can be characterized through different means and covariances, those data structures should be repre…

Cited by 2SourcePDFScholar
2022

Graphon based Clustering and Testing of Networks: Algorithms and Theory

ICLR 2022poster

Network-valued data are encountered in a wide range of applications, and pose challenges in learning due to their complex structure and absence of vertex correspondence. Typical examples of such problems include classification or grouping of protein structures and social networks. Various methods, r…