Basis Choices for Frequency Domain Statistical Independence Tests and Algorithms for Algebraic Relation Extraction

Fuente: arXiv
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Autores principales: Shi, Juan, Wang, Wenbo, Zhang, Wan, Bao, Han, Chavez, Sergio, Huang, Jingfang, Wu, Yichao, Zhang, Kai
Formato: Preprint
Publicado: 2025
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author Shi, Juan
Wang, Wenbo
Zhang, Wan
Bao, Han
Chavez, Sergio
Huang, Jingfang
Wu, Yichao
Zhang, Kai
author_facet Shi, Juan
Wang, Wenbo
Zhang, Wan
Bao, Han
Chavez, Sergio
Huang, Jingfang
Wu, Yichao
Zhang, Kai
contents In this paper, we explore how different selections of basis functions impact the efficacy of frequency domain techniques in statistical independence tests, and study different algorithms for extracting low-dimensional algebraic relations from dependent data. We examine a range of complete orthonormal bases functions including the Legendre polynomials, Fourier series, Walsh functions, and standard and nonstandard Haar wavelet bases. We utilize fast transformation algorithms to efficiently transform physical domain data to frequency domain coefficients. The main focuses of this paper are the effectiveness of different basis selections in detecting data dependency using frequency domain data, e.g., whether varying basis choices significantly influence statistical power loss for small data with large noise; and on the stability of different optimization formulations for finding proper algebraic relations when data are dependent. We present numerical results to demonstrate the effectiveness of frequency domain-based statistical analysis methods and provide guidance for selecting the proper basis and algorithm to detect a particular type of relations.
format Preprint
id arxiv_https___arxiv_org_abs_2512_01963
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Basis Choices for Frequency Domain Statistical Independence Tests and Algorithms for Algebraic Relation Extraction
Shi, Juan
Wang, Wenbo
Zhang, Wan
Bao, Han
Chavez, Sergio
Huang, Jingfang
Wu, Yichao
Zhang, Kai
Numerical Analysis
Spectral Theory
Statistics Theory
In this paper, we explore how different selections of basis functions impact the efficacy of frequency domain techniques in statistical independence tests, and study different algorithms for extracting low-dimensional algebraic relations from dependent data. We examine a range of complete orthonormal bases functions including the Legendre polynomials, Fourier series, Walsh functions, and standard and nonstandard Haar wavelet bases. We utilize fast transformation algorithms to efficiently transform physical domain data to frequency domain coefficients. The main focuses of this paper are the effectiveness of different basis selections in detecting data dependency using frequency domain data, e.g., whether varying basis choices significantly influence statistical power loss for small data with large noise; and on the stability of different optimization formulations for finding proper algebraic relations when data are dependent. We present numerical results to demonstrate the effectiveness of frequency domain-based statistical analysis methods and provide guidance for selecting the proper basis and algorithm to detect a particular type of relations.
title Basis Choices for Frequency Domain Statistical Independence Tests and Algorithms for Algebraic Relation Extraction
topic Numerical Analysis
Spectral Theory
Statistics Theory
url https://arxiv.org/abs/2512.01963