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Johann Ioannou-Nikolaides

PhD Student

Niels Bohr Institute

University of Copenhagen

johann.nikolaides@nbi.ku.dk 

Johann Ioannou-Nikolaides

Introduction

My research:

Data-driven approaches in particle physics to extract (un)conventional insights, uncover hidden patterns and fundamental physics 

My expertise is:

Neutrino Physics (beyond the SM)

A problem I’m grappling with:

Discovering astrophysical neutrino sources using transformer-based architectures

I’ve got my eyes on:

Leveraging latent space representations to uncover hidden structures in particle physics datasets

I want to know more about:

Understanding uncertainties in training datasets and outputting credible confidence intervals

Projects

General searches with (GNN) AutoEncoders

Develop general Graph Neural Network (GNN) reconstruction algorithm(s) for all event types in experiment; based on this GNN architecture, use Variable AutoEncoder (VAE) to encode the dataset in a latent space (LS); apply the VAE to simulated data, also including theoretically motivated but unobserved physics signatures.