Sciweavers

1300 search results - page 100 / 260
» XML Query Processing and Optimization
Sort
View
JCP
2008
142views more  JCP 2008»
13 years 9 months ago
QoS Aware Query Processing Algorithm for Wireless Sensor Networks
In sensor networks, continuous query is commonly used for collecting periodical data from the objects under monitoring. This sort of queries needs to be carefully designed, in orde...
Jun-Zhao Sun
DEXA
2009
Springer
127views Database» more  DEXA 2009»
14 years 3 months ago
The Real Performance Drivers behind XML Lock Protocols
Abstract. Fine-grained lock protocols should allow for highly concurrent transaction processing on XML document trees, which is addressed by the taDOM lock protocol family enabling...
Sebastian Bächle, Theo Härder
TKDE
2002
111views more  TKDE 2002»
13 years 8 months ago
Query Relaxation by Structure and Semantics for Retrieval of Logical Web Documents
Since WWW encourages hypertext and hypermedia document authoring (e.g. HTML or XML), Web authors tend to create documents that are composed of multiple pages connected with hyperl...
Wen-Syan Li, K. Selçuk Candan, Quoc Vu, Div...
PPAM
2005
Springer
14 years 2 months ago
Parallel Query Processing and Edge Ranking of Graphs
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...
Dariusz Dereniowski, Marek Kubale
CIDR
2003
106views Algorithms» more  CIDR 2003»
13 years 10 months ago
Speculative Query Processing
Speculation is an every day phenomenon whereby one acts in anticipation of particular conditions that are likely to hold in the future. Computer science research has seen many suc...
Neoklis Polyzotis, Yannis E. Ioannidis