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1: Model of drum/soil assembly for calculation of E vib . Figure courtesy of Mooney and Adam (2007).

1: Model of drum/soil assembly for calculation of E vib . Figure courtesy of Mooney and Adam (2007).

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Spatio-temporal data presents many challenging problems as they require implementation of a proper stochastic model and estimation procedure. Spatio-temporal data are often indirectly observed through non-linear measurement operators, inherently multivariate with complex cor- relation structures, and collected in huge quantities. An example of such...

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... The random signal can then be represented as a sum of these differences, where each difference of smooths represents features relevant on a particular scale. Such a representation is useful in the analysis of images and especially in the analysis of spatial fields, see for example Heersink (2013), where a similar approach was used for the analysis of earthwork compaction roller measurement values. ...