Sciweavers

2987 search results - page 454 / 598
» Multiobjective Query Optimization
Sort
View
DKE
2007
119views more  DKE 2007»
15 years 1 months ago
Error minimization in approximate range aggregates
Histogram techniques have been used in many commercial database management systems to estimate a query result size. Recently, it has been shown that they are very effective to su...
Xuemin Lin, Qing Zhang, Yidong Yuan, Qing Liu
JIIS
2006
76views more  JIIS 2006»
15 years 1 months ago
Holes in joins
A join of two relations in real databases is usually much smaller than their cartesian product. This means that most of the combinations of tuples in the crossproduct of the respe...
Jarek Gryz, Dongming Liang
IJWIN
2007
68views more  IJWIN 2007»
15 years 1 months ago
Density-Independent, Scalable Search in Ad Hoc Networks
— We analyze the asymptotic cost of discovering a route within a flat ad hoc network and we show that one can discover a route with cost that is proportional only to the area of...
Zygmunt J. Haas, Rimon Barr
CG
2004
Springer
15 years 1 months ago
Occlusion Culling in OpenSG PLUS
Very large polygonal models are frequently used in scientific computing, mechanical engineering, or virtual medicine. An effective technique to handle these large models is occlus...
Dirk Staneker, Dirk Bartz, Wolfgang Straßer
PVLDB
2008
77views more  PVLDB 2008»
15 years 1 months ago
Community-driven data grids
Beyond already existing huge data volumes, e-science communities face major challenges in managing the anticipated data deluge of forthcoming projects. Community-driven data grids...
Tobias Scholl, Alfons Kemper