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» On Bounded Queries and Approximation
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DAC
2006
ACM
15 years 10 months ago
SAT sweeping with local observability don't-cares
SAT sweeping is a method for simplifying an AND/INVERTER graph (AIG) by systematically merging graph vertices from the inputs towards the outputs using a combination of structural...
Qi Zhu, Nathan Kitchen, Andreas Kuehlmann, Alberto...
FSE
2009
Springer
125views Cryptology» more  FSE 2009»
15 years 10 months ago
On the Security of Tandem-DM
Abstract. We provide the first proof of security for Tandem-DM, one of the oldest and most wellknown constructions for turning a blockcipher with n-bit blocklength and 2n-bit keyle...
Ewan Fleischmann, Michael Gorski, Stefan Lucks
ICALP
2009
Springer
15 years 10 months ago
Testing Fourier Dimensionality and Sparsity
We present a range of new results for testing properties of Boolean functions that are defined in terms of the Fourier spectrum. Broadly speaking, our results show that the propert...
Parikshit Gopalan, Ryan O'Donnell, Rocco A. Served...
VLDB
2007
ACM
130views Database» more  VLDB 2007»
15 years 10 months ago
A Simple and Efficient Estimation Method for Stream Expression Cardinalities
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
Aiyou Chen, Jin Cao, Tian Bu
SIGMOD
2003
ACM
190views Database» more  SIGMOD 2003»
15 years 10 months ago
Hardware Acceleration for Spatial Selections and Joins
Spatial database operations are typically performed in two steps. In the filtering step, indexes and the minimum bounding rectangles (MBRs) of the objects are used to quickly dete...
Chengyu Sun, Divyakant Agrawal, Amr El Abbadi