In market-driven requirements engineering a crucial decision is whether or not to select a requirement for implementation in the next software release. The selection process is part of the release planning process and can be viewed as a series of refinement steps resulting in either rejection or propagation to the next step. This paper presents an analytical model of the selection process which...

In this work we exploit an anfis network to achieve the singularities avoidance of a redundant robot. This latter must carry out a trajectory tracking in the Cartesian space near a singularity point. The singularity avoidance without affecting trajectory tracking is involved via selfmotion method. The analytical determination of this self motion is obtained on the optimization of scalar functio...

Recent collapses of Session Initiation Protocol (SIP) servers indicate that the built-in SIP overload control mechanism cannot mitigate overload effectively. In this paper, we propose a new SIP overload control algorithm by introducing a novel analytical approach to model the dynamic behaviour of a SIP network where each server has a finite buffer. Three key breakthroughs of our modeling approa...

Recent collapses of Session Initiation Protocol (SIP) servers indicate that the built-in SIP overload control mechanism cannot mitigate overload effectively. In this paper, we propose a new SIP overload control algorithm by introducing a novel analytical approach to model the dynamic behaviour of a SIP network where each server has a finite buffer. Three key breakthroughs of our modeling approa...