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SIGMOD
2009
ACM
139views Database» more  SIGMOD 2009»
16 years 6 months ago
Detecting and resolving unsound workflow views for correct provenance analysis
views abstract groups of tasks in a workflow into high level composite tasks, in order to reuse sub-workflows and facilitate provenance analysis. However, unless a view is careful...
Peng Sun, Ziyang Liu, Susan B. Davidson, Yi Chen
CIKM
2007
Springer
16 years 24 days ago
Recognition and classification of noun phrases in queries for effective retrieval
It has been shown that using phrases properly in the document retrieval leads to higher retrieval effectiveness. In this paper, we define four types of noun phrases and present an...
Wei Zhang, Shuang Liu, Clement T. Yu, Chaojing Sun...
MOBICOM
2012
ACM
13 years 9 months ago
Faster GPS via the sparse fourier transform
GPS is one of the most widely used wireless systems. A GPS receiver has to lock on the satellite signals to calculate its position. The process of locking on the satellites is qui...
Haitham Hassanieh, Fadel Adib, Dina Katabi, Piotr ...
ICDE
2006
IEEE
169views Database» more  ICDE 2006»
16 years 8 months ago
Making Designer Schemas with Colors
XML schema design has two opposing goals: elimination of update anomalies requires that the schema be as normalized as possible; yet higher query performance and simpler query exp...
Nuwee Wiwatwattana, H. V. Jagadish, Laks V. S. Lak...
TVCG
2010
153views more  TVCG 2010»
15 years 5 months ago
Parallel View-Dependent Level-of-Detail Control
—We present a scheme for view-dependent level-of-detail control that is implemented entirely on programmable graphics hardware. Our scheme selectively refines and coarsens an ar...
Liang Hu, Pedro V. Sander, Hugues Hoppe