Abstract
Recent literature on nonlinear models has shown
genetic programming to be a potential tool for
forecasters. A special type of genetically programmed
model, namely polynomial neural networks, is addressed.
Their outputs are polynomials and, as such, they are
open boxes that are amenable to comprehension,
analysis, and interpretation.
This paper presents a polynomial neural network
forecasting system, PGP, which has three innovative
features: polynomial block reformulation, local ridge
regression for weight estimation, and regularised
weight subset selection for pruning that uses a least
absolute shrinkage and selection operator. The relative
performance of this system to other established
forecasting procedures is the focus of this research
and is illustrated by three empirical studies. Overall,
the results are very promising and indicate areas for
further research.
Users
Please
log in to take part in the discussion (add own reviews or comments).