Building an general purpose approximation mechanism in Hadoop, support approximations on any subset of the original data set.

Acknowledgement

This work is supported in part by the US National Science Foundation Grant CCF-1337244, CCF-1527249, and National Science Foundation Early Career Award 0953946.

This work is also supported in part by the National Science Foundation under awards CNS-1042537 and CNS-1042543 (PRObE). http://www.nmc-probe.org/