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» Query Execution Assurance for Outsourced Databases
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SIGMOD
2007
ACM
170views Database» more  SIGMOD 2007»
14 years 8 months ago
Cardinality estimation using sample views with quality assurance
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
Per-Åke Larson, Wolfgang Lehner, Jingren Zho...
ENTCS
2007
102views more  ENTCS 2007»
13 years 7 months ago
Selective Data Encryption in Outsourced Dynamic Environments
The amount of information held by organizations’ databases is increasing very quickly. A recently proposed solution to the problem of data management, which is becoming increasi...
Ernesto Damiani, Sabrina De Capitani di Vimercati,...
DBSEC
2006
134views Database» more  DBSEC 2006»
13 years 9 months ago
Aggregation Queries in the Database-As-a-Service Model
In the Database-As-a-Service (DAS) model, clients store their database contents at servers belonging to potentially untrusted service providers. To maintain data confidentiality, ...
Einar Mykletun, Gene Tsudik
DBSEC
2009
110views Database» more  DBSEC 2009»
13 years 8 months ago
Enforcing Confidentiality Constraints on Sensitive Databases with Lightweight Trusted Clients
Existing approaches for protecting sensitive information stored (outsourced) at external "honest-but-curious" servers are typically based on an overlying layer of encrypt...
Valentina Ciriani, Sabrina De Capitani di Vimercat...
VLDB
2005
ACM
117views Database» more  VLDB 2005»
14 years 1 months ago
Parallel Querying with Non-Dedicated Computers
We present DITN, a new method of parallel querying based on dynamic outsourcing of join processing tasks to non-dedicated, heterogeneous computers. In DITN, partitioning is not th...
Vijayshankar Raman, Wei Han, Inderpal Narang