zfit: scalable pythonic fitting

Autor: Eschle, Jonas, Navarro, Albert Puig, Coutinho, Rafael Silva, Serra, Nicola
Rok vydání: 2019
Předmět:
Zdroj: SoftwareX 11 (2020) 100508
Druh dokumentu: Working Paper
DOI: 10.1016/j.softx.2020.100508
Popis: Statistical modeling is a key element in many scientific fields and especially in High-Energy Physics (HEP) analysis. The standard framework to perform this task in HEP is the C++ ROOT/RooFit toolkit; with Python bindings that are only loosely integrated into the scientific Python ecosystem. In this paper, zfit, a new alternative to RooFit written in pure Python, is presented. Most of all, zfit provides a well defined high-level API and workflow for advanced model building and fitting, together with an implementation on top of TensorFlow, allowing a transparent usage of CPUs and GPUs. It is designed to be extendable in a very simple fashion, allowing the usage of cutting-edge developments from the scientific Python ecosystem in a transparent way. The main features of zfit are introduced, and its extension to data analysis, especially in the context of HEP experiments, is discussed.
Comment: 12 pages, 2 figures
Databáze: arXiv