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Author

Jelena Tešić

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Open access Sep 2026

GraphC: Hierarchical clustering of signed graph networks

• graphC is a k-independent hierarchical clustering method for signed graphs. • It scales to large sparse signed networks with tens of millions of edges. • It avoids spectral decomposition and eigenvalue pollution issues without requiring training or hyperparameter tuning. • It treats positive and negative edges symmet...

Muhieddine Shebaro, Lucas J. Rusnak, M. Burtscher et al. · 0 citations
#machine learning Preprint Sep 2026

Physics-Informed Neural Network Surrogate for Oxygen Vacancy Dynamics in epitaxial $\mathrm{SrTiO_3}$ on Si memristors via Dynamic Spectral Optimization

A cascaded PINN architecture coupled with a custom second-order Chebyshev second kind polynomial spectral optimizer (DSO V2 Hybrid) to model ion-electronic drift-diffusion transport in Pt/SrTiO/Si memristive heterostructures across a 20 nm STO film on a 380 $\mu$m Si substrate.

R. Podorozhny, Nikoleta Theodoropoulou, Jelena Tešić · 0 citations

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