@article {simidat87,
	title = {Subgroup Discovery in Large Size Data Sets Preprocessed Using Stratified Instance Selection for Increasing the Presence of Minority Classes},
	journal = {Pattern Recognition Letters},
	volume = {29},
	year = {2008},
	pages = {2156-2164},
	doi = {10.1016/j.patrec.2008.08.001},
	author = {J. R. Cano and S. Garc{\'\i}a and F. Herrera}
}
