@ARTICLE{4522558,
   author={Hirata, N. S. T.},
   journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
   title={Multilevel Training of Binary Morphological Operators},
   year={2009},
   volume={31},
   number={4},
   pages={707-720},
   keywords={Boolean functions;image classification;iterative methods;learning (artificial intelligence);mathematical morphology;mathematical operators;Boolean function;binary morphological operator;finite neighborhood window;image processing;iterative two-level operator;machine learning;multilevel classifier design approach;multilevel training;stacked generalization;supervised classification problem;translation-invariant image operator;Classifier design and evaluation;Concept learning;Image Processing and Computer Vision;Machine learning;Morphological;Pattern Recognition;Simplification of expressions;Statistical},
   doi={10.1109/TPAMI.2008.118},
   ISSN={0162-8828}
}