This paper addresses the multiple criteria flight gate assignment problem under uncertainty, which is naturally modeled by fuzzy numbers. The problem examined is a special kind of multicriteria multi-mode resource-constrained project scheduling problem with generalized precedence constraints or...

Die Aufwendungen für Online-Werbung sind in den vergangenen Jahren rasant gewachsen. Ihr Anteil am gesamten deutschen Werbemarkt lag 2007 bei sieben Prozent und die Tendenz zeigt weiter steil nach oben. Der Versuch von Microsoft, den weltweit zweitgrößten Suchmaschinenbetreiber, Yahoo, zu...

In this paper, we introduce a linearity test for fuzzy rule-based models in the framework of time series modeling. To do so, we explore a family of statistical models, the regime switching autoregressive models, and the relations that link them to the fuzzy rule-based models. From these...

Growing environmental awareness coupled with stricter governmental regulations has fueled the need for integrating sustainability into supply chain and logistics activities. Accordingly, recent studies in the literature have emphasized the significance of environmentally concerned logistics...

Some industrial data often come with uncertainty, which in some cases depends on the decision of those responsible for taking the measurement in the production process. While the fuzzy approach helps to tackle the ambiguity that arises in the measurement, an interval type-2 fuzzy set deals with...

In der heutigen Theorie der Optionsbewertung wird davon ausgegangen, daß die Markterwartungen genau berechenbar sind. Die Unsicherheit besteht lediglich darin, welcher Aktienkurs sich letztlich realisiert, die Eintrittswahrscheinlichkeiten sind bekannt. Dabei treten jedoch erhebliche Probleme...

This paper contributes to the existing literature by demonstrating that the provision of communal water supply can be effective in improving child health if the targeted population shows adequate hygiene awareness and behavior. Until now, the fast growing body of literature on water development...

Since the middle of the 1980s many European countries have reduced the strictness of their employment protection mainly by relaxing it for temporary jobs. These countries are Belgium, Denmark, Germany, Greece, Italy, the Netherlands, Portugal, Spain and Sweden. The article explores the...