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CORR
2004
Springer
82views Education» more  CORR 2004»
13 years 8 months ago
Schema-based Scheduling of Event Processors and Buffer Minimization for Queries on Structured Data Streams
We introduce an extension of the XQuery language, FluX, that supports event-based query processing and the conscious handling of main memory buffers. Purely event-based queries of...
Christoph Koch, Stefanie Scherzinger, Nicole Schwe...
ICDE
2003
IEEE
161views Database» more  ICDE 2003»
14 years 9 months ago
Structural Join Order Selection for XML Query Optimization
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...
Yuqing Wu, Jignesh M. Patel, H. V. Jagadish
HIS
2009
13 years 6 months ago
Improved Harmony Search for Economic Power Dispatch
This paper presents a novel optimization approach using Improved Harmony Search (IHS) algorithm to solve economic power dispatch problem. The proposed methodology easily takes care...
V. Ravikumar Pandi, Bijaya K. Panigrahi, Manas Kum...
SIGMOD
2010
ACM
210views Database» more  SIGMOD 2010»
13 years 8 months ago
Searching trajectories by locations: an efficiency study
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
Zaiben Chen, Heng Tao Shen, Xiaofang Zhou, Yu Zhen...
SSD
1999
Springer
106views Database» more  SSD 1999»
14 years 20 days ago
XZ-Ordering: A Space-Filling Curve for Objects with Spatial Extension
There is an increasing need to integrate spatial index structures into commercial database management systems. In geographic information systems (GIS), huge amounts of information ...
Christian Böhm, Gerald Klump, Hans-Peter Krie...