2011 | OriginalPaper | Buchkapitel
FFX: Fast, Scalable, Deterministic Symbolic Regression Technology
verfasst von : Trent McConaghy
Erschienen in: Genetic Programming Theory and Practice IX
Verlag: Springer New York
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Symbolic regression is a common application for genetic programming (GP). This paper presents a new non-evolutionary technique for symbolic regression that, compared to competent GP approaches on real-world problems, is orders of magnitude faster (taking just seconds), returns simpler models, has comparable or better prediction on unseen data, and converges reliably and deterministically. I dub the approach FFX, for Fast Function Extraction. FFX uses a recentlydeveloped machine learning technique, pathwise regularized learning, to rapidly prune a huge set of candidate basis functions down to compact models. FFX is verified on a broad set of real-world problems having 13 to 1468 input variables, outperforming GP as well as several state-of-the-art regression techniques.