I consider an adverse selection model of ̄rm reputation. Each ̄rm is characterized by an exogenously given quality level, which is the ̄rm's private information and applies to any product it sells. Consumers observe the performance of the ̄rm's products, which is positively related to the ̄rm's quality level. The ̄rm's reputation is given by the consumers' posterior on the ̄rm's quality level given th...

The ARTigo project is based on a social image tagging game developed at the Ludwig Maximilian University of Munich. It provides us with a large database of images described by tags which were chosen by the players of the ARTigo game. The outlying properties detection problem (ODP) defines the problem of finding explanations for the most outlying properties of a certain object. This work intends...

RM-ODP is about modeling, and mathematics is one of the oldest, and deserved, modeling disciplines. Experience accumulated in mathematics in general, and some of machineries developed, may well turn out to be relevant for arranging/organizing/ formalizing the concepts managed in RM-ODP. Especially promising here is mathematical category theory that is nothing but a discipline and framework for ...

In order to model telecommunications services as mobile agent system, we are defining a methodology based on the RM-ODP standards. Our approach makes the distinction between the service behavior specification, that is independent of the support environment, and the complete service specification that must take into account the target environment. To obtain this specification, the designer must ...