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2019 | OriginalPaper | Chapter

d(Tree)-by-dx: Automatic and Exact Differentiation of Genetic Programming Trees

Authors : Peter Rockett, Yuri Kaszubowski Lopes, Tiantian Dou, Elizabeth A. Hathway

Published in: Hybrid Artificial Intelligent Systems

Publisher: Springer International Publishing

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Abstract

Genetic programming (GP) has developed to the point where it is a credible candidate for the ‘black box’ modeling of real systems. Wider application, however, could greatly benefit from its seamless embedding in conventional optimization schemes, which are most efficiently carried out using gradient-based methods. This paper describes the development of a method to automatically differentiate GP trees using a series of tree transformation rules; the resulting method can be applied an unlimited number of times to obtain higher derivatives of the function approximated by the original, trained GP tree. We demonstrate the utility of our method using a number of illustrative gradient-based optimizations that embed GP models.

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Footnotes
Literature
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go back to reference Mousavi Astarabadi, S.S., Ebadzadeh, M.M.: Avoiding overfitting in symbolic regression using the first order derivative of GP trees. In: Genetic and Evolutionary Computation Conference (GECCO Companion 2015), Madrid, Spain, pp. 1441–1442, 11–15 July 2015. https://doi.org/10.1145/2739482.2764662 Mousavi Astarabadi, S.S., Ebadzadeh, M.M.: Avoiding overfitting in symbolic regression using the first order derivative of GP trees. In: Genetic and Evolutionary Computation Conference (GECCO Companion 2015), Madrid, Spain, pp. 1441–1442, 11–15 July 2015. https://​doi.​org/​10.​1145/​2739482.​2764662
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go back to reference Rudin, W.: Principles of Mathematical Analysis. McGraw-Hill, New York (1976)MATH Rudin, W.: Principles of Mathematical Analysis. McGraw-Hill, New York (1976)MATH
Metadata
Title
d(Tree)-by-dx: Automatic and Exact Differentiation of Genetic Programming Trees
Authors
Peter Rockett
Yuri Kaszubowski Lopes
Tiantian Dou
Elizabeth A. Hathway
Copyright Year
2019
DOI
https://doi.org/10.1007/978-3-030-29859-3_12

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