Sciweavers

1300 search results - page 114 / 260
» XML Query Processing and Optimization
Sort
View
WWW
2001
ACM
14 years 9 months ago
A unified constraint model for XML
Integrity constraints are an essential part of a modern schema definition language. They are useful for semantic specification, update consistency control, query optimization, inf...
Gabriel M. Kuper, Jérôme Siméo...
CIKM
2005
Springer
14 years 2 months ago
Optimizing cursor movement in holistic twig joins
Holistic twig join algorithms represent the state of the art for evaluating path expressions in XML queries. Using inverted indexes on XML elements, holistic twig joins move a set...
Marcus Fontoura, Vanja Josifovski, Eugene J. Sheki...
ICDCS
2007
IEEE
14 years 3 months ago
Two-Tier Multiple Query Optimization for Sensor Networks
When there are multiple queries posed to the resourceconstrained wireless sensor network, it is critical to process them efficiently. In this paper, we propose a Two-Tier Multipl...
Shili Xiang, Hock-Beng Lim, Kian-Lee Tan, Yongluan...
PVLDB
2008
104views more  PVLDB 2008»
13 years 8 months ago
Scalable multi-query optimization for exploratory queries over federated scientific databases
The diversity and large volumes of data processed in the Natural Sciences today has led to a proliferation of highlyspecialized and autonomous scientific databases with inherent a...
Anastasios Kementsietsidis, Frank Neven, Dieter Va...
APWEB
2005
Springer
14 years 2 months ago
Multiresolution Query Optimization in an Online Environment
Multiresolution (or multi-scale) techniques make it possible for Web-based GIS applications to access large dataset. The performance of such systems relies on data transmission ove...
Kai Xu 0003, Xiaofang Zhou