{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/an-open-source-machine-learning-framework-for","title":"An open-source machine learning framework for global analyses of parton distributions","arxiv_id":"2109.02671","date":"2021-09-06","proceeding":null,"authors":["Richard D. Ball","Stefano Carrazza","Juan Cruz-Martinez","Luigi Del Debbio","Stefano Forte","Tommaso Giani","Shayan Iranipour","Zahari Kassabov","Jose I. Latorre","Emanuele R. Nocera","Rosalyn L. Pearson","Juan Rojo","Roy Stegeman","Christopher Schwan","Maria Ubiali","Cameron Voisey","Michael Wilson"],"abstract":"We present the software framework underlying the NNPDF4.0 global determination of parton distribution functions (PDFs). The code is released under an open source licence and is accompanied by extensive documentation and examples. The code base is composed by a PDF fitting package, tools to handle experimental data and to efficiently compare it to theoretical predictions, and a versatile analysis framework. In addition to ensuring the reproducibility of the NNPDF4.0 (and subsequent) determination, the public release of the NNPDF fitting framework enables a number of phenomenological applications and the production of PDF fits under user-defined data and theory assumptions.","url_abs":"https://arxiv.org/abs/2109.02671v1","url_pdf":"https://arxiv.org/pdf/2109.02671v1.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"an-open-source-machine-learning-framework-for","repo_url":"https://github.com/nnpdf/nnpdf","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":0,"framework":"none","reach":{"status":"ok","spdx":"GPL-3.0"}},{"paper_slug":"an-open-source-machine-learning-framework-for","repo_url":"https://github.com/hep-pbsp/simunet","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":{"status":"ok","spdx":"GPL-3.0"}}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}