Towards Foundation Models for Experimental Readout Systems Combining Discrete and Continuous Data

Fuente: arXiv
Salvato in:
Dettagli Bibliografici
Autori principali: Giroux, James, Fanelli, Cristiano
Natura: Preprint
Pubblicazione: 2025
Soggetti:
Accesso online:
Tags: Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
_version_ 1866913947856142336
author Giroux, James
Fanelli, Cristiano
author_facet Giroux, James
Fanelli, Cristiano
contents We present a (proto) Foundation Model for Nuclear Physics, capable of operating on low-level detector inputs from Imaging Cherenkov Detectors at the future Electron Ion Collider. Building upon established next-token prediction approaches, we aim to address potential challenges such as resolution loss from existing tokenization schemes and limited support for conditional generation. We propose four key innovations: (i) separate vocabularies for discrete and continuous variates, combined via Causal Multi-Head Cross-Attention (CMHCA), (ii) continuous kinematic conditioning through prepended context embeddings, (iii) scalable and simple, high-resolution continuous variate tokenization without joint vocabulary inflation, and (iv) class conditional generation through a Mixture of Experts. Our model enables fast, high-fidelity generation of pixel and time sequences for Cherenkov photons, validated through closure tests in the High Performance DIRC. We also show our model generalizes to reconstruction tasks such as pion/kaon identification, and noise filtering, in which we show its ability to leverage fine-tuning under specific objectives.
format Preprint
id arxiv_https___arxiv_org_abs_2505_08736
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Towards Foundation Models for Experimental Readout Systems Combining Discrete and Continuous Data
Giroux, James
Fanelli, Cristiano
Machine Learning
High Energy Physics - Experiment
Nuclear Experiment
Instrumentation and Detectors
We present a (proto) Foundation Model for Nuclear Physics, capable of operating on low-level detector inputs from Imaging Cherenkov Detectors at the future Electron Ion Collider. Building upon established next-token prediction approaches, we aim to address potential challenges such as resolution loss from existing tokenization schemes and limited support for conditional generation. We propose four key innovations: (i) separate vocabularies for discrete and continuous variates, combined via Causal Multi-Head Cross-Attention (CMHCA), (ii) continuous kinematic conditioning through prepended context embeddings, (iii) scalable and simple, high-resolution continuous variate tokenization without joint vocabulary inflation, and (iv) class conditional generation through a Mixture of Experts. Our model enables fast, high-fidelity generation of pixel and time sequences for Cherenkov photons, validated through closure tests in the High Performance DIRC. We also show our model generalizes to reconstruction tasks such as pion/kaon identification, and noise filtering, in which we show its ability to leverage fine-tuning under specific objectives.
title Towards Foundation Models for Experimental Readout Systems Combining Discrete and Continuous Data
topic Machine Learning
High Energy Physics - Experiment
Nuclear Experiment
Instrumentation and Detectors
url https://arxiv.org/abs/2505.08736