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arXiv 2411.03358cs.LGstat.CO
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SPINEX_符号回归:基于相似度的可解释邻域探索符号回归方法

SPINEX_ Symbolic Regression: Similarity-based Symbolic Regression with Explainable Neighbors Exploration

Clemson University(克莱姆森大学);University of Manitoba(曼尼托巴大学)

MZ Naser, Ahmed Z Naser

AI总结:

本研究提出基于SPINEX系列的新型符号回归算法SPINEX_SymbolicRegression,通过基于相似度的方法筛选高精度高结构相似度的表达式,在180余个国际基准函数测试中表现稳定且部分场景优于主流算法,兼具可解释性。

摘要:

本文提出一种基于SPINEX(基于相似度的可解释邻域探索预测,Similarity-based Predictions with Explainable Neighbors Exploration)系列的新型符号回归算法,即SPINEX_SymbolicRegression。该算法采用基于相似度的方法,识别同时满足精度与结构相似度指标的高价值表达式。我们开展了广泛的基准测试,将该算法与来自国际问题集的180余个数学基准函数进行对比,这些函数涵盖随机生成的表达式以及基于真实物理现象的表达式。随后,我们从精度、(与真实表达式相比的)算子与变量层面的表达式相似度、种群规模、收敛所需代数等维度评估了算法性能。结果显示,SPINEX_SymbolicRegression表现始终优异,部分场景下性能超越主流算法;此外,深度实验也凸显了该算法的可解释性能力。

英文摘要:

This article introduces a new symbolic regression algorithm based on the SPINEX (Similarity-based Predictions with Explainable Neighbors Exploration) family. This new algorithm (SPINEX_SymbolicRegression) adopts a similarity-based approach to identifying high-merit expressions that satisfy accuracy- and structural similarity metrics. We conducted extensive benchmarking tests comparing SPINEX_SymbolicRegression to over 180 mathematical benchmarking functions from international problem sets that span randomly generated expressions and those based on real physical phenomena. Then, we evaluated the performance of the proposed algorithm in terms of accuracy, expression similarity in terms of presence operators and variables (as compared to the actual expressions), population size, and number of generations at convergence. The results indicate that SPINEX_SymbolicRegression consistently performs well and can, in some instances, outperform leading algorithms. In addition, the algorithm's explainability capabilities are highlighted through in-depth experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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