The Shekel function or also Shekel's foxholes is a multidimensional, multimodal, continuous, deterministic function commonly used as a test function for testing optimization techniques.[1]
The mathematical form of a function in
or, similarly,
Numerically certified global minima and the corresponding solutions were obtained using interval methods for up to
Shekel, J. 1971. "Test Functions for Multimodal Search Techniques." Fifth Annual Princeton Conference on Information Science and Systems.
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