Search results for "Regression curve"

showing 2 items of 2 documents

A clear sky atmospheric model valid for the mediterranean zone

1988

Abstract The ASHRAE clear sky model in the version proposed by G.L. Powell has been applied to a set of clear days from two coastal locations of Yugoslavia. The results have provided further elements to confirm the existence of a clear sky atmospheric model valid for the whole Mediterranean zone. This model is characterized by values of the atmospheric extinction coefficient higher than the corresponding ASHRAE ones with upper limits defined by the regression curve derived by using data of Palermo.

Mediterranean climateMeteorologybusiness.industrymedia_common.quotation_subjectGeneral EngineeringAtmospheric modelMolar absorptivityAtmospheric sciencesSolar energySkyASHRAE 90.1Environmental sciencebusinessRegression curvemedia_commonSolar & Wind Technology
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Some extensions of multivariate sliced inverse regression

2007

Multivariate sliced inverse regression (SIR) is a method for achieving dimension reduction in regression problems when the outcome variable y and the regressor x are both assumed to be multidimensional. In this paper, we extend the existing approaches, based on the usual SIR I which only uses the inverse regression curve, to methods using properties of the inverse conditional variance. Contrary to the existing ones, these new methods are not blind for symmetric dependencies and rely on the SIR II or SIRα. We also propose their corresponding pooled slicing versions. We illustrate the usefulness of these approaches on simulation studies.

Statistics and ProbabilityMultivariate statisticsApplied MathematicsDimensionality reductionInverseOutcome variableModeling and SimulationStatisticsSliced inverse regressionStatistics::MethodologyStatistics Probability and UncertaintyConditional varianceRegression problemsMathematicsRegression curveJournal of Statistical Computation and Simulation
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