@inproceedings {4416,
	title = {URank: Formulation and Efficient Evaluation of Top-K Queries in Uncertain Databases},
	booktitle = {ACM International Conference on Management of Data (SIGMOD)},
	year = {2007},
	doi = {10.1145/1247480.1247613},
	author = {Mohamed A. Soliman and Ihab Ilyas and Kevin Chen-Chuan Chang}
}
