Fractional signature: a generalisation of the signature inspired by fractional calculus

التفاصيل البيبلوغرافية
العنوان: Fractional signature: a generalisation of the signature inspired by fractional calculus
المؤلفون: Corcuera, José Manuel, Jiménez, Rubén
سنة النشر: 2024
المجموعة: Computer Science
Statistics
مصطلحات موضوعية: Statistics - Machine Learning, Computer Science - Machine Learning, 60L10, 68Q32, 26A33
الوصف: In this paper, we propose a novel generalisation of the signature of a path, motivated by fractional calculus, which is able to describe the solutions of linear Caputo controlled FDEs. We also propose another generalisation of the signature, inspired by the previous one, but more convenient to use in machine learning. Finally, we test this last signature in a toy application to the problem of handwritten digit recognition, where significant improvements in accuracy rates are observed compared to those of the original signature.
Comment: 9 pages, 1 figure
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2407.17446
رقم الأكسشن: edsarx.2407.17446
قاعدة البيانات: arXiv