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» Ensuring correctness over untrusted private database
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PVLDB
2011
12 years 10 months ago
Albatross: Lightweight Elasticity in Shared Storage Databases for the Cloud using Live Data Migration
Database systems serving cloud platforms must serve large numbers of applications (or tenants). In addition to managing tenants with small data footprints, different schemas, and ...
Sudipto Das, Shoji Nishimura, Divyakant Agrawal, A...
PODS
2009
ACM
134views Database» more  PODS 2009»
14 years 8 months ago
Relationship privacy: output perturbation for queries with joins
We study privacy-preserving query answering over data containing relationships. A social network is a prime example of such data, where the nodes represent individuals and edges r...
Vibhor Rastogi, Michael Hay, Gerome Miklau, Dan Su...
SIGMOD
2003
ACM
127views Database» more  SIGMOD 2003»
14 years 7 months ago
Cache-and-Query for Wide Area Sensor Databases
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
Amol Deshpande, Suman Kumar Nath, Phillip B. Gibbo...
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FOCS
2010
IEEE
13 years 5 months ago
Boosting and Differential Privacy
Boosting is a general method for improving the accuracy of learning algorithms. We use boosting to construct improved privacy-preserving synopses of an input database. These are da...
Cynthia Dwork, Guy N. Rothblum, Salil P. Vadhan
JCS
1998
117views more  JCS 1998»
13 years 7 months ago
A Semantic-Based Transaction Processing Model for Multilevel Transactions
Multilevel transactions have been proposed for multilevel secure databases; in contrast to most proposals, such transactions allow users to read and write across multiple security...
Indrakshi Ray, Paul Ammann, Sushil Jajodia