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» Answering imprecise database queries: a novel approach
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ICPR
2008
IEEE
14 years 9 months ago
Query by table
Querying any information system requires the knowledge of some formal language, making it inaccessible to computer-na?ve potential users. We propose a new intuitive querying mecha...
George Nagy, Raghav K. Padmanabhan
ICDE
2010
IEEE
200views Database» more  ICDE 2010»
14 years 2 months ago
GenerIE: Information extraction using database queries
— Information extraction systems are traditionally implemented as a pipeline of special-purpose processing modules. A major drawback of such an approach is that whenever a new ex...
Luis Tari, Phan Huy Tu, Jörg Hakenberg, Yi Ch...
SIGMOD
2011
ACM
283views Database» more  SIGMOD 2011»
12 years 10 months ago
iReduct: differential privacy with reduced relative errors
Prior work in differential privacy has produced techniques for answering aggregate queries over sensitive data in a privacypreserving way. These techniques achieve privacy by addi...
Xiaokui Xiao, Gabriel Bender, Michael Hay, Johanne...
TWC
2011
417views more  TWC 2011»
13 years 2 months ago
A Spatiotemporal Approach for Secure Range Queries in Tiered Sensor Networks
Abstract—We target a two-tier sensor network with resourcerich master nodes at the upper tier and resource-poor sensor nodes at the lower tier. Master nodes collect data from sen...
Jing Shi, Rui Zhang, Yanchao Zhang
SIGMOD
2004
ACM
160views Database» more  SIGMOD 2004»
14 years 7 months ago
Extending Query Rewriting Techniques for Fine-Grained Access Control
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
Shariq Rizvi, Alberto O. Mendelzon, S. Sudarshan, ...