@conference {simidat156, title = {An analysis of evolutionary algorithms with different types of fuzzy rules in subgroup discovery}, booktitle = {IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)}, year = {2009}, note = {TIN2008-06681-C06-01,TIN2008-06681-C06-02,TIC-3928}, month = {August}, pages = {1706-1711}, address = {ICC Jeju, Jeju Island, Korea}, author = {C. J. Carmona and P. Gonz{\'a}lez and M. J. del Jesus and F. Herrera} }