August, 5, 2015. I3S submitted an abstract named “Tuning spatial interpolation under non-space-filling designs for unmanned surface vehicle applications” for the ENBIS-2015 conference in Prague. You LI and Mario Joao Rendas (Laboratoire d’Informatique, Signaux et Systèmes de Sophia-Antipolis (I3S)) will present their findings during the conference at the 7th of September at 17:10.
Spatial interpolation is the procedure of estimating the value of properties of a field at unsampled sites using the measured values at a set of positions. All interpolation algorithms require the definition of a set of user-defined parameters, whose value should reflect the available knowledge about the spatial coherency of the field. In the absence of prior knowledge, Cross-Validation (CV) is often used to select “best” parameters. Leave-One-Out Cross-Validation (LOOCV), the most common form of CV, removes one data point at a time, and estimates its value using the
remaining samples. The “best” interpolation parameters is then chosen as the one that leads to the minimum value of the residual between the actual and estimated values, assuming that the CV residuals is a representative sample of the residuals when interpolating over the entire area of interest. Read the complete abstract.