105views more  CSDA 2004»
13 years 6 months ago
Computational aspects of algorithms for variable selection in the context of principal components
Variable selection consists in identifying a k-subset of a set of original variables that is optimal for a given criterion of adequate approximation to the whole data set. Several...
Jorge Cadima, J. Orestes Cerdeira, Manuel Minhoto
131views Education» more  DGO 2008»
13 years 7 months ago
A domain-specific language for urban simulation variables
UrbanSim is a modeling system for simulating the development of urban regions over periods of 20-30 years. Its purpose is to help evaluate alternative proposed policies and transp...
Alan Borning, Hana Sevcikova, Paul Waddell