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- Jorge Cadima, J. Orestes Cerdeira, Manuel Minhoto
- Computational Statistics & Data Analysis
- 2004

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 algorithms for the optimization problems resulting from three di4erent criteria in the context of principal components analysis are considered, and computational results are… (More)

The subselect package addresses the issue of variable selection in different statistical contexts, among which exploratory data analyses; univariate or multivariate linear models; generalized linear models; principal components analysis; linear discriminant analysis, canonical correlation analysis. Selecting variable subsets requires the definition of a… (More)

- Shakir Shatnawi, Jorge Pais, Manuel Minhoto
- 2012

This paper provides an overview of the asphalt rubber interlayer benefits on reflective crack retardation in overlays over rigid pavements. These interlayers are known in California as asphalt rubber absorbing membrane interlayers (SAMIR) or as asphalt rubber aggregate membrane interlayers (ARAM-I) chip seals. The paper focuses on the performance in terms… (More)

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