This paper discusses the general characteristics of the mobile instant messaging market from a competition point of view. Positive feedback and indirect network effects, which strongly influence the mobile instant messaging market, tend to facilitate the development of one quasi-monopoly. Even...

The healthcare enterprises are very disconnected. This paper intends to propose a solution that will provide citizens, businesses and medical enterprises with improved access to medical virtual public services. Referred medical services are based on existing national medical Web services and...

he goal of this article is to formalize Object Role Modeling (ORM) using the DLR description logic. This would enable automated reasoning on the formal properties of ORM diagrams, such as detecting constraint contradictions and implications. In addition, the expressive, methodological, and...

We map ORM into the SHOIN/OWL, which is the most common description logic in ontology engineering. As SHOIN/OWL is known to be a good compromise between expressiveness and computational complexity, this implies that the ORM constraints mapped in this paper are the constraints that are easier to...

Techniques and issues for the characterisation of an object-field representation that includes notions of semantics and uncertainty are detailed. The purpose of this model is to allow users to capture objects in field with internally variable levels of uncertainty, to visualize users'...

This paper presents a simple Optimised Search Heuristic for the Job Shop Scheduling problem that combines a GRASP heuristic with a branch-and-bound algorithm. The proposed method is compared with similar approaches and leads to better results in terms of solution quality and computing times