Sei A = {1, . . . , n} eine endliche Menge und f : A -- IR gegeben. Im folgenden Beitrag werden Algorithmen zur Ermittlung der Kleinst-Quadrate Regression g : A -- IR von f beschrieben, wobei g monoton bzgl. einer nicht notwendigerweise vollständigen Präordnung auf A ist. Neben den...

Sei A = {1, . . . , n} eine endliche Menge und f : A -- IR gegeben. Im folgenden Beitrag werden Algorithmen zur Ermittlung der Kleinst-Quadrate Regression g : A -- IR von f beschrieben, wobei g monoton bzgl. einer nicht notwendigerweise vollständigen Präordnung auf A ist. Neben den...

While the academic world is still discussing if charting works or if it is more or less something like "Voodoo finance", the practical orientated world has been using technical analysis for decades. One argument of practitioners is, that technical analysis is useful to "disciplinate" the trader...

Multidimensional scaling is very common in exploratory data analysis. It is mainly used to represent sets of objects with respect to their proximities in a low dimensional Euclidean space. Widely used optimization algorithms try to improve the representation via shifting its coordinates in...

While the academic world is still discussing if charting works or if it is more or less something like "Voodoo finance", the practical orientated world has been using technical analysis for decades. One argument of practitioners is, that technical analysis is useful to "disciplinate" the trader...

While the academic world is still discussing if charting works or if it is more or less something like "Voodoo finance", the practical orientated world has been using technical analysis for decades. One argument of practitioners is, that technical analysis is useful to "disciplinate" the trader...

Decision trees are used very successfully for the identification resp. classification task of objects in many domains like marketing (e.g. Decker, Temme (2001)) or medicine. Other procedures to classify objects are for instance the logistic regression, the logit- or probit analysis, the linear...

Multidimensional scaling is very common in exploratory data analysis. It is mainly used to represent sets of objects with respect to their proximities in a low dimensional Euclidean space. Widely used optimization algorithms try to improve the representation via shifting its coordinates in...

In dieser Studie werden zunächst die konzeptionellen Grundlagen des Customer Relationship Managements und der sog. CRM-Systeme dargestellt sowie die Einbettung von Data Warehouse und Data Mining Technologie in diesem Kontext erörtert. Danach erfolgt eine Literatur gestützte Diskussion...