Yau-YauAL: A computer tool for solving nonlinear filtering problems

Fuente: arXiv
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Main Authors: Wang, Yu, Xu, Shuyuan, Wei, Xueda, Luo, Xinrui, Yau, Stephen Shing-Toung, Yau, Shing-Tung, Wu, Rongling
Format: Preprint
Published: 2025
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_version_ 1866915336481144832
author Wang, Yu
Xu, Shuyuan
Wei, Xueda
Luo, Xinrui
Yau, Stephen Shing-Toung
Yau, Shing-Tung
Wu, Rongling
author_facet Wang, Yu
Xu, Shuyuan
Wei, Xueda
Luo, Xinrui
Yau, Stephen Shing-Toung
Yau, Shing-Tung
Wu, Rongling
contents The Yau-Yau nonlinear filter has increasingly emerged as a powerful tool to study stochastic complex systems. To leverage it to a wider spectrum of application scenarios, we pack the Yau-Yau filtering ALgorithms (YauYauAL) into a package of computer software. Yau-YauAL was written in R, designed to simplify the implementation of the Yau-Yau filter for solving nonlinear filtering problems. Combining R's accessibility with C++ (via Rcpp) for computational efficiency, YauYauAL provides an intuitive Shiny-based interface that enables real-time parameter adjustment and result visualization. At its core, YauYauAL employs finite difference methods to numerically solve the Kolmogorov forward equation, ensuring a stable and accurate solution even for complex systems. YauYauAL's modular design and open-source framework further encourage customization and community-driven development. YauYauAL aims to bridge the gap between theoretical nonlinear filtering methods and practical applications, without requiring expertise in differential equation solving or programming, fostering its broader impact on various scientific fields, such as signal processing, finance, medicine, and biology among a long list.
format Preprint
id arxiv_https___arxiv_org_abs_2506_08976
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Yau-YauAL: A computer tool for solving nonlinear filtering problems
Wang, Yu
Xu, Shuyuan
Wei, Xueda
Luo, Xinrui
Yau, Stephen Shing-Toung
Yau, Shing-Tung
Wu, Rongling
Applications
93E11, 60G35
D.2.12
The Yau-Yau nonlinear filter has increasingly emerged as a powerful tool to study stochastic complex systems. To leverage it to a wider spectrum of application scenarios, we pack the Yau-Yau filtering ALgorithms (YauYauAL) into a package of computer software. Yau-YauAL was written in R, designed to simplify the implementation of the Yau-Yau filter for solving nonlinear filtering problems. Combining R's accessibility with C++ (via Rcpp) for computational efficiency, YauYauAL provides an intuitive Shiny-based interface that enables real-time parameter adjustment and result visualization. At its core, YauYauAL employs finite difference methods to numerically solve the Kolmogorov forward equation, ensuring a stable and accurate solution even for complex systems. YauYauAL's modular design and open-source framework further encourage customization and community-driven development. YauYauAL aims to bridge the gap between theoretical nonlinear filtering methods and practical applications, without requiring expertise in differential equation solving or programming, fostering its broader impact on various scientific fields, such as signal processing, finance, medicine, and biology among a long list.
title Yau-YauAL: A computer tool for solving nonlinear filtering problems
topic Applications
93E11, 60G35
D.2.12
url https://arxiv.org/abs/2506.08976