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DASFAA
2006
IEEE
145views Database» more  DASFAA 2006»
14 years 2 months ago
Processing Multiple Aggregation Queries in Geo-Sensor Networks
Abstract. To process aggregation queries issued through different sensors as access points in sensor networks, existing algorithms handle queries independently and perform in-netw...
Ken C. K. Lee, Wang-Chien Lee, Baihua Zheng, Julia...
DEBU
2000
118views more  DEBU 2000»
13 years 8 months ago
A Dynamic Query Processing Architecture for Data Integration Systems
Execution plans produced by traditional query optimizers for data integration queries may yield poor performance for several reasons. The cost estimates may be inaccurate, the mem...
Luc Bouganim, Françoise Fabret, C. Mohan, P...
CIKM
2010
Springer
13 years 7 months ago
Skyline query processing for uncertain data
Recently, several research efforts have addressed answering skyline queries efficiently over large datasets. However, this research lacks methods to compute these queries over un...
Mohamed E. Khalefa, Mohamed F. Mokbel, Justin J. L...
ICDE
2008
IEEE
132views Database» more  ICDE 2008»
14 years 10 months ago
The Space Complexity of Processing XML Twig Queries Over Indexed Documents
Abstract-- Current twig join algorithms incur high memory costs on queries that involve child-axis nodes. In this paper we provide an analytical explanation for this phenomenon. In...
Mirit Shalem, Ziv Bar-Yossef
EDBT
2009
ACM
124views Database» more  EDBT 2009»
14 years 2 days ago
Processing probabilistic spatio-temporal range queries over moving objects with uncertainty
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...
Bruce S. E. Chung, Wang-Chien Lee, Arbee L. P. Che...