Symbolic-numeric integration of univariate expressions based on sparse regression
Symbolic-numeric integration of univariate expressions based on sparse regression
复制标题
基于稀疏回归的单变量表达式的符号数值积分
DOI:
10.1145/3572867.3572882
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发表时间:
2022
影响因子:
0.1
通讯作者:
Rackauckas, Chris
中科院分区:
文献类型:
--
作者:
Iravanian, Shahriar;Martensen, Carl Julius;Cheli, Alessandro;Gowda, Shashi;Jain, Anand;Ma, Yingbo;Rackauckas, Chris
The majority of computer algebra systems (CAS) support symbolic integration using a combination of heuristic algebraic and rule-based (integration table) methods. In this paper, we present a hybrid (symbolic-numeric) method to calculate the indefinite integrals of univariate expressions. Our method is broadly similar to the Risch-Norman algorithm. The primary motivation for this work is to add symbolic integration functionality to a modern CAS (the symbolic manipulation packages of SciML, the Scientific Machine Learning ecosystem of the Julia programming language), which is designed for numerical and machine learning applications. The symbolic part of our method is based on the combination of candidate terms generation (ansatz generation using a methodology borrowed from the Homotopy operators theory) combined with rule-based expression transformations provided by the underlying CAS. The numeric part uses sparse regression, a component of the Sparse Identification of Nonlinear Dynamics (SINDy) technique, to find the coefficients of the candidate terms. We show that this system can solve a large variety of common integration problems using only a few dozen basic integration rules.
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影响因子:
4.6
作者:
W. Hereman;B. Deconinck;L. D. Poole
通讯作者:
L. D. Poole
DOI:
--
发表时间:
1989
期刊:
International Symposium on Symbolic and Algebraic Computation
影响因子:
--
作者:
K. Geddes;L. Y. Stefanus
通讯作者:
L. Y. Stefanus
DOI:
10.21105/joss.03078
发表时间:
2021
期刊:
ArXiv
影响因子:
--
作者:
Alessandro Cheli
通讯作者:
Alessandro Cheli
DOI:
10.1073/pnas.1517384113
发表时间:
2016-04-12
影响因子:
11.1
作者:
Brunton, Steven L.;Proctor, Joshua L.;Kutz, J. Nathan
通讯作者:
Kutz, J. Nathan
影响因子:
1.1
作者:
Douglas Poole;W. Hereman
通讯作者:
Douglas Poole;W. Hereman