To build adequate predictive models, a substantial amount of data is desirable. However, when expanding to new or unexplored territories, this required level of information is rarely always available. To build such models, actuaries often have to: procure data from local providers, use limited...

Zusammenfassung Der Beitrag schildert die Effekte partieller Antwortverweigerung auf die Ergebnisse multivariater statistischer Analysen anhand von Produktivitätsschätzungen auf Betriebsdatenebene. Als Datenbasis dient das IAB-Betriebspanel aus dem Jahr 2000, wobei fehlende Daten mit Hilfe des...

Abstract The estimation of causal effects is fundamental in situations where the underlying system will be subject to active interventions. Part of building a causal inference engine is defining how variables relate to each other, that is, defining the functional relationship between variables...

Deception and media manipulation have always been an integral part of wartime propaganda. But never before has it been so easy to create high-quality fabrications of images as well as sound and video recordings. The tendency to react emotionally to these media opens up a whole new possibility...

Täuschung und Medienmanipulation sind seit jeher fester Bestandteil der Kriegskommunikation. Nie zuvor aber war es derart einfach, qualitativ hochwertige Fäl­schungen von Ton-, Bild- und Videoaufzeichnungen zu erstellen. Die menschliche Neigung, emotional auf diese Medien zu reagieren,...

Variations of dedicated process conditions (such as workpiece and tool properties) yield different process state evolutions, which are reflected by different time series of the observable quantities (process curves). A novel method is presented, which firstly allows to extract the statistical...

Convertible bonds are an important segment of the corporate bond market, however, as hybrid instruments, convertible bonds are difficult to value because they depend on variables related to the underlying stock, the fixed-income part, and the interaction between these components. Besides,...