Search for high-energy neutrino sources from the direction of IceCube alert events

Abstract

Search for high-energy neutrino sources from the direction of IceCube alert eventsThe IceCube Collaboration

Fast identification of transients: applying expectation maximization to neutrino data

“…When comparing a constant emission between t start and t end with a Gaussian-shaped flare of similar duration, EM identifies both signals equally well, even when the simulated emission is box-shaped and does not follow the fitted Gaussian pdf [10].…”

“…However, this also means evaluating reduced information and potentially favoring specific model parameters since the assumed model parameters enter the signal weight calculation. References [10,11] investigated new approaches, and we conducted a first search applying the method presented in this work (an unsupervised machine learning algorithm) on IceCube data in refs. [11][12][13].…”