Sciweavers

429 search results - page 23 / 86
» A SAT approach to query optimization in mediator systems
Sort
View
WISE
2007
Springer
14 years 2 months ago
On Tree Pattern Query Rewriting Using Views
We study and present our findings on two closely related problems on xpath rewriting using views when both the view and the query are tree patterns involving /,// and []. First, g...
Junhu Wang, Jeffrey Xu Yu, Chengfei Liu
MOBIQUITOUS
2005
IEEE
14 years 2 months ago
Decentralizing Query Processing in Sensor Networks
Recent research has led to the advent of software systems capable of performing query processing in sensor networks. They perform query processing in a sensor network by construct...
Ross Rosemark, Wang-Chien Lee
STOC
2006
ACM
138views Algorithms» more  STOC 2006»
14 years 9 months ago
The PCP theorem by gap amplification
The PCP theorem [3, 2] says that every language in NP has a witness format that can be checked probabilistically by reading only a constant number of bits from the proof. The cele...
Irit Dinur
SIGMOD
2002
ACM
236views Database» more  SIGMOD 2002»
14 years 8 months ago
The Cougar Approach to In-Network Query Processing in Sensor Networks
The widespread distribution and availability of smallscale sensors, actuators, and embedded processors is transforming the physical world into a computing platform. One such examp...
Yong Yao, Johannes Gehrke
MICCAI
2010
Springer
13 years 7 months ago
A Statistical Approach for Achievable Dose Querying in IMRT Planning
The task of IMRT planning, particularly in head-and-neck cancer, is a difficult one, often requiring days of work from a trained dosimetrist. One of the main challenges is the pres...
Patricio D. Simari, Binbin Wu, Robert Jacques, Ale...