We present in this article a theoretical study and performance results about the impact of the Grid architecture on token-based mutual exclusion algorithms. To this end, both the original token-based Naimi-Tréhel’s algorithm and a hierarchical approach, suitable to cope with the intrinsic heterogeneity of communication latencies of Grid environments, are studied and evaluated.

In both, metropolitan optical networks (MON) and long haul optical networks (LHON) the signal quality is often influenced by the physical impairments, therefore a proper impairment based routing decision is needed. In the absence of all-optical 3R regenerators, the quality of transmission has a strong impact on the feasibility of all-optical transmission. It is assumed that signal regeneration ...

We present an important improvement related to the computation and use of Mutual Information index in Pseudobagging, a technique that adapts “bagging” to unsupervised context. The Mutual Information index plays a key role in this technique, assessing the quality of a partition. We propose the use of such an index to improve the Pseudobagging voting scheme for determining the final partition of ...

In this paper, we discuss the ways that communication accommodation theory (CAT) can be a useful framework for understanding and diagnosing interactional issues in interpersonal and intergroup conflict situations. We argue that the theory’s construct of attuning strategies provides a multidimensional view of mutual adjustment, leading to insights relevant to successful versus unsuccessful confl...

The paper aims to extend the findings of a previous study (Grinberg et al., 2012) exploring the impact of social relations on the cooperation in the Prisoner’s dilemma game. Relations between players are manipulated by assigning different roles. The roles embodied the four basic types of human relations in line with Fiske’s relational models theory (Fiske, 1991): communal sharing, authority ran...