We consider the general situation of fitting an assumed nonlinear regression model which is possibly misspecified. The minimax designs for both response prediction and extrapolation in biased nonlinear regression models are discussed. We extend previous work of others from linear response or a...

We propose a new subgradient method for the minimization of nonsmooth convex functions over a convex set. To speed up computations we use adaptive approximate projections only requiring to move within a certain distance of the exact projections (which decreases in the course of the algorithm)....

Akademische Ausbildung hat wie alle Bildungs- und Ausbildungsleistungen Elemente eines öffentlichenGutes, da sie im Ergebnis externe Nutzeneffekte erzeugt, die nicht nur dem einzelnen Individuum, welchesdie Ausbildung erhält, sondern einem breiteren Nutzerkreis zu Gute kommen. Zudem wird...

Kanäle zur Kundeninteraktion gelten in vielen Branchen als strategischeErfolgsfaktoren. Auch zeigen Studien, dass insbesondere die – gemessen an ihrerKaufkraft – wertvollen Kunden mehrere Kanäle nutzeni, so dass einem aufökonomischen Prinzipien basierenden Multikanalmanagement zur...

In this paper we analyze several new methods for solving optimization problems with the objective function formed as a sum of two convex terms: one is smooth and given by a black-box oracle, and another is general but simple and its structure is known. Despite to the bad properties of the sum,...

One of the major cost factors in car manufacturing is the painting of bodyand other parts such as wing or bonnet. Surprisingly, the painting may beeven more expensive than the body itself. From this point of view it is clearthat car manufacturers need to observe the painting process carefully to...

In solving certain optimization problems, the corresponding Lagrangian dual problem is often solved simply because in these problems the dual problem is easier to solve than the original primal problem. Another reason for their solution is the implication of the weak duality theorem which...

In this paper, an algorithm for finding piecewise linear boundaries between pattern classes is developed. This algorithm consists of two main stages. In the first stage, a polyhedral conic set is used to identify data points which lie inside their classes, and in the second stage we exclude...