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» On the Period of a Periodic-Finite-Type Shift
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BC
2005
55views more  BC 2005»
13 years 7 months ago
Spatial and temporal structure of phase synchronization of spontaneous alpha EEG activity
Spatiotemporal characteristics of spontaneous alpha EEG activity patterns are analyzed in terms of large-scale phase synchronization. During periods with strong phase synchronizati...
Junji Ito, Andrey R. Nikolaev, Cees van Leeuwen
KDD
1997
ACM
120views Data Mining» more  KDD 1997»
13 years 11 months ago
Discovering Trends in Text Databases
We describe a system we developed for identifying trends in text documents collected over a period of time. Trends can be used, for example, to discover that a company is shifting...
Brian Lent, Rakesh Agrawal, Ramakrishnan Srikant
AAI
2006
106views more  AAI 2006»
13 years 7 months ago
Metaheuristics for Handling Time Interval Coverage Constraints in Nurse Scheduling
The problem of finding a high quality timetable for personnel in a hospital ward has been addressed by many researchers, personnel managers and schedulers over a number of years. ...
Edmund K. Burke, Patrick De Causmaecker, Sanja Pet...
CSDA
2006
108views more  CSDA 2006»
13 years 7 months ago
Repeated median and hybrid filters
Standard median filters preserve abrupt shifts (edges) and remove impulsive noise (outliers) from a constant signal but they deteriorate in trend periods. Finite impulse response ...
Roland Fried, Thorsten Bernholt, Ursula Gather
BIRTHDAY
2009
Springer
14 years 2 months ago
Is the World Linear?
Super-resolution is the art of creating nice high-resolution raster images from given low-resolution raster images. Since “nice” is not a well-defined term in mathematics and ...
Rudolf Fleischer