abstract = "This paper introduces a novel approach to induce Fuzzy
Pattern Trees (FPT) using Grammatical Evolution(GE),
FGE, and applies to a set of benchmark classification
problems. While conventionally a set of FPTs are needed
for classifiers, one for each class, FGE needs just a
single tree. This is the case for both binary and
multi-classification problems. Experimental results
show that FGE achieves competitive and frequently
better results against state of the art FPT related
methods, such as FPTs evolved using Cartesian Genetic
Programming (FCGP), on a set of benchmark problems.
While FCGP produces smaller trees, FGE reaches a better
classification performance. FGE also benefits from a
reduction in the number of necessary user-selectable
parameters. Furthermore, in order to tackle bloat or
solutions growing too large, another version of FGE
using parsimony pressure was tested. The experimental
results show that FGE with this addition is able to
produce smaller trees than those using FCGP, frequently
without compromising the classification performance.",