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Georgios Vasileios Karanikolas

5 accepted papers

2024

A Bayesian Approach to High-Order Link Prediction

ICASSP 2024accepted

Using a subset of observed network links, high-order link prediction (HOLP) infers missing hyperedges, that is links connecting three or more nodes. HOLP emerges in several applications, but existing approaches have not dealt with the associated predictor’s performance. To overcome this limitation,…

Cited by 0SourceScholar
2023

Higher-Order Link Prediction Via Learnable Maximum Mean Discrepancy

ICASSP 2023accepted

Higher-order link prediction (HOLP) seeks missing links capturing dependencies among three or more network nodes. Predicting high-order links (HOLs) can for instance reveal hyperlinks in the structure of drug substance and metabolic networks. Existing methods either make restrictive assumptions rega…

Cited by 0SourceScholar
2021

Online Unsupervised Learning Using Ensemble Gaussian Processes with Random Features

ICASSP 2021accepted

Gaussian process latent variable models (GPLVMs) are powerful, yet computationally heavy tools for nonlinear dimensionality reduction. Existing scalable variants utilize low- rank kernel matrix approximants that in essence subsample the embedding space. This work develops an efficient online approac…

Cited by 0SourceScholar
2020

Self-Driven Graph Volterra Models for Higher-Order Link Prediction

ICASSP 2020accepted

Link prediction is one of the core problems in network and data science with widespread applications. While predicting pairwise nodal interactions (links) in network data has been investigated extensively, predicting higher-order interactions (higher-order links) is still not fully understood. Sever…

Cited by 0SourceScholar
2018

Fully Automatic Segmentation of the Right Ventricle Via Multi-Task Deep Neural Networks

ICASSP 2018accepted

Segmentation of ventricles from cardiac magnetic resonance (MR) images is a key step to obtaining clinical parameters useful for prognosis of cardiac pathologies. To improve upon the performance of existing fully convolutional network (FCN) based automatic right ventricle (RV) segmentation approache…

Cited by 0SourceScholar