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GIS
2004
ACM
16 years 7 months ago
A novel improvement to the R*-tree spatial index using gain/loss metrics
The R*-tree is a state-of-the-art spatial index structure. It has already found its way into commercial systems. The most important improvement of the R*-tree over the original R-...
Donghui Zhang, Tian Xia
ISBI
2002
IEEE
16 years 7 months ago
Correction for external LOR effects in listmode reconstruction for PET
In PET imaging listmode is an alternative for projections to store the acquisition data with more accuracy. The reconstruction starting from the listmode format requires different...
Stefaan Vandenberghe, Yves D'Asseler, Rik Van de W...
170
Voted
WWW
2009
ACM
16 years 7 months ago
Computers and iphones and mobile phones, oh my!: a logs-based comparison of search users on different devices
We present a logs-based comparison of search patterns across three platforms: computers, iPhones and conventional mobile phones. Our goal is to understand how mobile search users ...
Maryam Kamvar, Melanie Kellar, Rajan Patel, Ya Xu
WWW
2007
ACM
16 years 7 months ago
OntoWiki: A Tool for Social, Semantic Collaboration
Abstract We present OntoWiki, a tool providing support for agile, distributed knowledge engineering scenarios. OntoWiki facilitates the visual presentation of a knowledge base as a...
Jens Lehmann, Sören Auer, Sebastian Dietzold,...
ASPLOS
2009
ACM
16 years 7 months ago
TwinDrivers: semi-automatic derivation of fast and safe hypervisor network drivers from guest OS drivers
In a virtualized environment, device drivers are often run inside a virtual machine (VM) rather than in the hypervisor, for reasons of safety and reduction in software engineering...
Aravind Menon, Simon Schubert, Willy Zwaenepoel