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SIGMOD
2000
ACM
83views Database» more  SIGMOD 2000»
15 years 2 months ago
Synchronizing a Database to Improve Freshness
In this paper we study how to refresh a local copy of an autonomous data source to maintain the copy up-to-date. As the size of the data grows, it becomes more difficult to mainta...
Junghoo Cho, Hector Garcia-Molina
BNCOD
1998
84views Database» more  BNCOD 1998»
14 years 11 months ago
Considering Integrity Constraints During Federated Database Design
Correct transformations and integrations of schemata within the process of federated database design have to encompass existing local integrity constraints. Most of the proposed me...
Stefan Conrad, Ingo Schmitt, Can Türker
ICIP
2001
IEEE
15 years 11 months ago
Image reconstruction from localized Fourier magnitude
Fourier transform magnitude is, in many cases, the only measurable data in fields such as optics, x-ray imaging, crystallography and astronomy. Spectral phase information is impra...
Gil Michael, Moshe Porat
VIS
2004
IEEE
116views Visualization» more  VIS 2004»
15 years 11 months ago
Simplifying Flexible Isosurfaces Using Local Geometric Measures
our tree, an abstraction of a scalar field that encodes the nesting relationships of isosurfaces, can be used to accelerate isosurface extraction, to identify important isovalues ...
Hamish Carr, Jack Snoeyink, Michiel van de Panne
GLOBECOM
2007
IEEE
15 years 4 months ago
Precise Localization with Smart Antennas in Ad-Hoc Networks
—In this paper, we study precise localization using Angle of Arrival (AOA) estimations by smart-antenna equipped beacons in Ad-Hoc networks. The node to be localized sends a sign...
Zhilong Shan, Tak-Shing Peter Yum