@inproceedings{SKP06a, author = {Schreck, Tobias and Keim, Daniel A. and Panse, Christian}, booktitle = {Proc. IEEE Int. Conference on Multimedia and Expo (ICME'2006). Toronto, Canada, July 9-12}, title = {Visual Feature Space Analysis for Unsupervised Effectiveness Estimation and Feature Engineering}, year = {2006} }