Sciweavers

2223 search results - page 221 / 445
» Query Optimization in an OODBMS
Sort
View
MOBIDE
2010
ACM
15 years 4 months ago
Minimum-hot-spot query trees for wireless sensor networks
We propose a distributed algorithm to construct a balanced communication tree that serves in gathering data from the network nodes to a sink. Our algorithm constructs a near-optim...
Georgios Chatzimilioudis, Demetrios Zeinalipour-Ya...
EOR
2010
178views more  EOR 2010»
15 years 4 months ago
Facility location problems in the plane based on reverse nearest neighbor queries
For a finite set of points S, the (monochromatic) Reverse Nearest Neighbor (RNN) rule associates with any query point q the subset of points in S that have q as its nearest neighb...
Sergio Cabello, José Miguel Díaz-B&a...
SIGMOD
2008
ACM
122views Database» more  SIGMOD 2008»
15 years 4 months ago
UQBE: uncertain query by example for web service mashup
The UQBE is a mashup tool for non-programmers that supports query-by-example (QBE) over a schema made up by the user without knowing the schema of the original sources. Based on a...
Jun'ichi Tatemura, Songting Chen, Fenglin Liao, Ol...
INTERNET
2010
283views more  INTERNET 2010»
15 years 2 months ago
Querying the Data Web: The MashQL Approach
 We propose a query formulation language, called MashQL for querying and mashing up structured data on the web. The novelty of  MashQL is that it does not requireÂ...
Mustafa Jarrar, Marios D. Dikaiakos
NIS
1998
131views more  NIS 1998»
15 years 4 months ago
Dynamic Memory Allocation for Large Query Execution
The execution time of a large query depends mainly on the memory utilization which should avoid disk accesses for intermediate results. Poor memory management can hurt performance ...
Luc Bouganim, Olga Kapitskaia, Patrick Valduriez