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TKDE
2010
189views more  TKDE 2010»
13 years 6 months ago
Projective Distribution of XQuery with Updates
—We investigate techniques to automatically decompose any XQuery query—including updating queries specified by the XQuery Update Facility (XQUF)—into subqueries, that can be ...
Ying Zhang, Nan Tang, Peter A. Boncz
ICALP
2007
Springer
14 years 1 months ago
Model Theory Makes Formulas Large
Gaifman’s locality theorem states that every first-order sentence is equivalent to a local sentence. We show that there is no elementary bound on the length of the local sentenc...
Anuj Dawar, Martin Grohe, Stephan Kreutzer, Nicole...
ICDE
2009
IEEE
153views Database» more  ICDE 2009»
14 years 9 months ago
Efficient Distribution of Full-Fledged XQuery
Abstract-- We investigate techniques to automatically decompose any XQuery query into subqueries, that can be executed near their data sources; i.e., function-shipping. In this sce...
Ying Zhang, Nan Tang, Peter A. Boncz
VIS
2009
IEEE
300views Visualization» more  VIS 2009»
14 years 8 months ago
Predictor-Corrector Schemes for Visualization of Smoothed Particle Hydrodynamics Data
Abstract--In this paper we present a method for vortex core line extraction which operates directly on the smoothed particle hydrodynamics (SPH) representation and, by this, genera...
Benjamin Schindler, Raphael Fuchs, John Biddisco...
STOC
2004
ACM
107views Algorithms» more  STOC 2004»
14 years 7 months ago
Primal-dual algorithms for deterministic inventory problems
We consider several classical models in deterministic inventory theory: the single-item lot-sizing problem, the joint replenishment problem, and the multi-stage assembly problem. ...
Retsef Levi, Robin Roundy, David B. Shmoys