@article{AAHO2007, author = {R. Alcal\'a and J. Alcala-Fdez and F. Herrera and J. Otero}, title = {Genetic learning of accurate and compact fuzzy rule based systems based on the 2-tuples linguistic representation}, journal = {International Journal of Approximate Reasoning}, volume = {44}, number = {1}, pages = {45--64}, year = {2007} }