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SIGMOD
2012
ACM
11 years 10 months ago
2012
ACM
It is often highly valuable for organizations to have their data analyzed by external agents. However, any program that computes on potentially sensitive data risks leaking inform...
SIGMOD
2012
ACM
11 years 10 months ago
2012
ACM
We present an automatic skew mitigation approach for userdefined MapReduce programs and present SkewTune, a system that implements this approach as a drop-in replacement for an e...
SIGMOD
2012
ACM
11 years 10 months ago
2012
ACM
While extensive work has been done on evaluating queries over tuple-independent probabilistic databases, query evaluation over correlated data has received much less attention eve...
PODS
2012
ACM
11 years 10 months ago
2012
ACM
We study the mergeability of data summaries. Informally speaking, mergeability requires that, given two summaries on two data sets, there is a way to merge the two summaries into ...
PODS
2012
ACM
11 years 10 months ago
2012
ACM
Data is increasingly being bought and sold online, and Webbased marketplace services have emerged to facilitate these activities. However, current mechanisms for pricing data are ...