Graph Neural Networks for IceCube Signal Classification
Abstract
Tasks involving the analysis of geometric (graph- and manifold-structured) data have recently gained prominence in the machine learning community, giving birth to a rapidly developing field of geometric deep learning. In this work, we leverage graph neural networks to improve signal detection in the IceCube neutrino observatory. The IceCube detector array is modeled as a graph, where vertices are sensors and edges are a learned function of the sensors' spatial coordinates. As only a subset of IceCube's sensors is active during a given observation, we note the adaptive nature of our GNN, wherein computation is restricted to the input signal support. We demonstrate the effectiveness of our GNN architecture on a task classifying IceCube events, where it outperforms both a traditional physics-based method as well as classical 3D convolution neural networks.
Cite
@article{arxiv.1809.06166,
title = {Graph Neural Networks for IceCube Signal Classification},
author = {Nicholas Choma and Federico Monti and Lisa Gerhardt and Tomasz Palczewski and Zahra Ronaghi and Prabhat and Wahid Bhimji and Michael M. Bronstein and Spencer R. Klein and Joan Bruna},
journal= {arXiv preprint arXiv:1809.06166},
year = {2018}
}