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In geostatistics, spatial data will be analysed that often come from irregularly distributed sampling locations …
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In many fields of applied statistics samples from several locations in an investigation area are taken repeatedly over time. Especially in environmental monitoring the chemical and physical conditions in water, air and soil are measured using fixed and possibly mobile monitoring stations. The...
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Noisy observations form the basis for almost every scientific research and especially in environmental monitoring. The Noise is often an effect of imprecise instruments which cause measurement errors. If the noise variance is known it is possible to filter out the contaminating noise from the...
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We propose a new decomposition of the realized covariance matrix into components based on the signs of the underlying … forecasts may be significantly improved by using the realized semicovariance matrices to ``look inside'' the realized covariance …
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