902 search results - page 39 / 181 » Efficient and Extensible Algorithms for Multi Query Optimiza... |
SIGMOD
2010
ACM
13 years 8 months ago
2010
ACM
Histograms have been widely used for fast estimation of query result sizes in query optimization. In this paper, we propose a new histogram method, called the Skew-Tolerant Histog...
ICDCN
2009
Springer
14 years 1 months ago
2009
Springer
Wireless sensor networks with multiple users collecting data directly from the sensors have many potential applications. An important problem is to allocate for each user a query r...
DATESO
2008
13 years 10 months ago
2008
Abstract In recent years, many approaches to indexing XML data have appeared. These approaches attempt to process XML queries efficiently and sufficient query plans are built for t...
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
DATE
2008
IEEE
14 years 3 months ago
2008
IEEE
To satisfy high-performance computing demand in modern embedded devices, current embedded processor architectures provide designer with possibility either to define customized ins...