@inproceedings { ZSB+12a, title = {Visual analytics for the big data era - a comparative review of state-of-the-art commercial systems}, journal = {Proc. IEEE Symposium on Visual Analytics Science and Technology (accepted for publication)}, booktitle = {Proceedings of IEEE Symposium on Visual Analytics Science and Technology}, doi = {10.1109/VAST.2012.6400554}, year = {2012}, author = {Zhang, Leishi and Stoffel, Andreas and Behrisch, Michael and Mittelst├Ądt, Sebastian and Schreck, Tobias and Pompl, R. and Weber, S. and Last, H. and Keim, Daniel A.} }