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PODS
2009
ACM
134views Database» more  PODS 2009»
16 years 2 months ago
Equivalence of nested queries with mixed semantics
We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
David DeHaan
110
Voted
DCC
2002
IEEE
16 years 1 months ago
On-Line Adaptation in Image Coding with a 2-D Tarp Filter
On-line adaptation to nonstationary distributions is essential to good performance in image coding. Fixed-size contexts (with adaptive tables) are also widely used, in conjunction...
Patrice Simard, David Steinkraus, Henrique S. Malv...
128
Voted
ACIVS
2008
Springer
15 years 8 months ago
Blur and Contrast Invariant Fast Stereo Matching
We propose a novel approach for estimating a depth-map from a pair of rectified stereo images degraded by blur and contrast change. At each location in image space, information is...
Matteo Pedone, Janne Heikkilä
ISVLSI
2005
IEEE
157views VLSI» more  ISVLSI 2005»
15 years 8 months ago
Configurable Multiprocessors for High-Performance MPEG-4 Video Coding
We investigate the performance improvement of a multithreaded MPEG-4 video encoder executing on a configurable, extensible, SoC multiprocessor. Architecture-level results indicate...
Vassilios A. Chouliaras, Tom R. Jacobs, Ashwin K. ...
94
Voted
FOSSACS
2004
Springer
15 years 7 months ago
Electoral Systems in Ambient Calculi
This paper compares the expressiveness of ambient calculi against different dialects of the pi-calculus. Cardelli and Gordon encoded the asynchronous pi-calculus into their calcul...
Iain Phillips, Maria Grazia Vigliotti