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JACM
2008
91views more  JACM 2008»
13 years 7 months ago
On the minimization of XPath queries
XML queries are usually expressed by means of XPath expressions identifying portions of the selected documents. An XPath expression defines a way of navigating an XML tree and ret...
Sergio Flesca, Filippo Furfaro, Elio Masciari
IJSNET
2006
107views more  IJSNET 2006»
13 years 7 months ago
In-network aggregation trade-offs for data collection in wireless sensor networks
This paper explores in-network aggregation as a power-efficient mechanism for collecting data in wireless sensor networks. In particular, we focus on sensor network scenarios wher...
Ignacio Solis, Katia Obraczka
JCIT
2008
165views more  JCIT 2008»
13 years 7 months ago
Adaptive Source pixel based Prediction for Lossless Intra Coding of H.264 MPEG-4 /AVC
A new prediction for lossless intra coding technique employs source pixel based prediction in contrast to source block based prediction is presented as an enhancement of H.264/MPE...
N. Krishnan, P. Vijayalakshmi, R. K. Selvakumar, S...
JFR
2008
103views more  JFR 2008»
13 years 7 months ago
Monte Carlo localization in outdoor terrains using multilevel surface maps
We propose a novel combination of techniques for robustly estimating the position of a mobile robot in outdoor environments using range data. Our approach applies a particle filte...
Rainer Kümmerle, Rudolph Triebel, Patrick Pfa...
JGTOOLS
2008
151views more  JGTOOLS 2008»
13 years 7 months ago
GPU Color Constancy
A sensor located inside a digital camera is only able to measure the light which is reflected by an object. The reflected light varies with the spectral power distribution of the ...
Marc Ebner