ODSL Forum: Conditional normalizing flows and their application for high-energy neutrino event reconstruction (Thorsten Glüsenkamp)

Friday 26 Apr 2024, 15:00 → 16:00 Europe/Berlin

Basement Seminar Room (Origins Building)

In this seminar, I will talk about normalizing flows (NFs), in particular about the types that are useful for high-energy neutrino event reconstruction in detectors like IceCube. First, I will give an introduction that focuses on essentially two different classes of flows which have quite a citation disparity in the literature: 1)  Euclidean normalizing flows in high dimensions (D>>100), which typically have high citation counts, and 2) Euclidean normalizing flows in low dimensions (D<<100) and manifold flows, which are typically cited less frequently. I discuss the reasons why I think this latter class, which seems to be often less known, is in particular useful for high-energy physicists, and then briefly review two examples of that class: Gaussianization flows, and exponential-map flows. I will then discuss an open-source github package, "jammy-flows", which includes many state-of-the art flows suited for high-energy physics, including the two preceeding examples. Finally, I discuss a recent application of conditional NFs for neutrino event reconstruction in the IceCube detector.

munich_seminar_apri_26.pdf