Nicholas C. Miller

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Genetic programming has been around for over 20 years, yet most implementations are still based on sub-tree crossover and node mutation, in which structural changes are made that manipulate the syntax of programs. However, it is not clear why manipulating program syntax should have any desirable effect on program behavior (or semantics). One sub-field of(More)
—A nodal Discontinuous Galerkin (DG) method is derived for the analysis of time-domain (TD) scattering from doubly periodic PEC/dielectric structures under oblique interrogation. Field transformations are employed to elaborate a formalism that is free from any issues with causality that are common when applying spatial periodic boundary conditions(More)
One sub-field of Genetic Programming (GP) which has gained recent interest is semantic GP, in which programs are evolved by manipulating program semantics instead of program syntax. This paper introduces a new semantic GP algorithm, called SGP+, which is an extension of an existing algorithm called SGP. New crossover and mutation operators are introduced(More)
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