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GIS
2005
ACM
16 years 5 months ago
Improving the R*-tree with outlier handling techniques
The R*-tree, as a state-of-the-art spatial index, has already found its way into commercial systems like Oracle. In this paper, we aim at improving query performance of the R*tree...
Tian Xia, Donghui Zhang
AINA
2007
IEEE
15 years 11 months ago
A Distributed and Dynamic Data Gathering Protocol for Sensor Networks
In this paper we propose a distributed, self organizing, robust and energy efficient data gathering algorithm for sensor networks operating in environments where all the sensor n...
Hüseyin Özgür Tan, Ibrahim Korpeogl...
CSL
2007
Springer
15 years 10 months ago
Typed Normal Form Bisimulation
Normal form bisimulation is a powerful theory of program equivalence, originally developed to characterize L´evy-Longo tree equivalence and Boehm tree equivalence. It has been ada...
Søren B. Lassen, Paul Blain Levy
EDBT
2009
ACM
110views Database» more  EDBT 2009»
15 years 9 months ago
A sampling approach for XML query selectivity estimation
As the Extensible Markup Language (XML) rapidly establishes itself as the de facto standard for presenting, storing, and exchanging data on the Internet, large volume of XML data ...
Cheng Luo, Zhewei Jiang, Wen-Chi Hou, Feng Yu, Qia...
ICCAD
1997
IEEE
91views Hardware» more  ICCAD 1997»
15 years 8 months ago
Interconnect layout optimization under higher-order RLC model
In this paper, we study the interconnect layout optimization problem under a higher-order RLC model to optimize not just delay, but also waveform for RLC circuits with non-monoton...
Jason Cong, Cheng-Kok Koh