A paper has been accepted by USENIX ATC 2015 2015-05-31 ATC'15, Paper The paper is one of 47 papers accepted out of 221 submissions. Congratulations! Xue Mochi(薛墨池), Wang Jiajun(王佳骏) Newer A paper has been accepted by VLDB 2015 Older Mingyuan Xia has presented the paper in S&P 2015