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PVLDB
2010
104views more  PVLDB 2010»
15 years 2 months ago
Boosting the Accuracy of Differentially Private Histograms Through Consistency
We show that it is possible to significantly improve the accuracy of a general class of histogram queries while satisfying differential privacy. Our approach carefully chooses a...
Michael Hay, Vibhor Rastogi, Gerome Miklau, Dan Su...
CIKM
2005
Springer
15 years 9 months ago
Query workload-aware overlay construction using histograms
Peer-to-peer (p2p) systems offer an efficient means of data sharing among a dynamically changing set of a large number of autonomous nodes. Each node in a p2p system is connected...
Georgia Koloniari, Yannis Petrakis, Evaggelia Pito...
VLDB
2002
ACM
106views Database» more  VLDB 2002»
15 years 3 months ago
Structure and Value Synopses for XML Data Graphs
All existing proposals for querying XML (e.g., XQuery) rely on a pattern-specification language that allows (1) path navigation and branching through the label structure of the XM...
Neoklis Polyzotis, Minos N. Garofalakis
CGO
2007
IEEE
15 years 8 months ago
Profile-assisted Compiler Support for Dynamic Predication in Diverge-Merge Processors
Dynamic predication has been proposed to reduce the branch misprediction penalty due to hard-to-predict branch instructions. A recently proposed dynamic predication architecture, ...
Hyesoon Kim, José A. Joao, Onur Mutlu, Yale...
CVPR
2003
IEEE
16 years 6 months ago
Multi-modal image registration by minimizing Kullback-Leibler distance between expected and observed joint class histograms
In this paper, we present a new multimodal image registration method based on the a priori knowledge of the class label mappings between two segmented input images. A joint class ...
Ho-Ming Chan, Albert C. S. Chung, Simon C. H. Yu, ...