@INPROCEEDINGS{SchKoh08, author = "Schubert, Markus and Kohlmorgen, Jens", title = "Hierarchical Feature Extraction for Compact Representation and Classification of Datasets", booktitle = "{ICONIP} 2007", year = "2008", series = "{LNCS} 4984", pages = "556--565", publisher = "Springer", pdf = "http://doc.ml.tu-berlin.de/publications/publications/SchKoh08.pdf" }