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Filters: First Letter Of Title is F and Author is Carmen Fernandez-Gago  [Clear All Filters]
F. Moyano, C. Fernandez-Gago, and J. Lopez, "A Framework for Enabling Trust Requirements in Social Cloud Applications",
Requirements Engineering, vol. 18, issue 4, Springer London, pp. 321-341, Nov 2013. DOI (I.F.: 1.147)More..

Abstract

Cloud applications entail the provision of a huge amount of heterogeneous, geographically-distributed resources managed and shared by many different stakeholders who often do not know each other beforehand. This raises numerous security concerns that, if not addressed carefully, might hinder the adoption of this promising computational model. Appropriately dealing with these threats gains special relevance in the social cloud context, where computational resources are provided by the users themselves. We argue that taking trust and reputation requirements into account can leverage security in these scenarios by incorporating the notions of trust relationships and reputation into them. For this reason, we propose a development framework onto which developers can implement trust-aware social cloud applications. Developers can also adapt the framework in order to accommodate their application-specific needs.

Impact Factor: 1.147
Journal Citation Reports® Science Edition (Thomson Reuters, 2013)

PDF icon moyano2013re.pdf (1.25 MB)
R. Roman, C. Fernandez-Gago, and J. Lopez, "Featuring Trust and Reputation Management Systems for Constrained Hardware Devices",
1st International Conference on Autonomic Computing and Communication Systems (Autonomics’07), ICST, October, 2007. More..

Abstract

Research on trust management systems for wireless sensor networks is still at a very early stage and few works have done so far. It seems that for those works which deal with the topic general features of how these systems should be are not clearly identified. In this paper we try to identify the main features that a trust management system should have and justify their importance for future developments.

PDF icon Roman2007c.pdf (110.26 KB)
C. Fernandez-Gago, U. Hustadt, C. Dixon, M. Fisher, and B. Konev, "First-Order Temporal Verification in Practice",
Journal of Automated Reasoning, vol. 34, Springer, pp. 295-321, 2005. DOI (I.F.: 0.875)More..

Abstract

First-order temporal logic, the extension of first-order logic with operators dealing with time, is a powerful and expressive formalism with many potential applications. This expressive logic can be viewed as a framework in which to investigate problems specified in other logics. The monodic fragment of first-order temporal logic is a useful fragment that possesses good computational properties such as completeness and sometimes even decidability. Temporal logics of knowledge are useful for dealing with situations where the knowledge of agents in a system is involved. In this paper we present a translation from temporal logics of knowledge into the monodic fragment of first-order temporal logic. We can then use a theorem prover for monodic first-order temporal logic to prove properties of the translated formulas. This allows problems specified in temporal logics of knowledge to be verified automatically without needing a specialized theorem prover for temporal logics of knowledge. We present the translation, its correctness, and examples of its use.

Impact Factor: 0.875
Journal Citation Reports® Science Edition (Thomson Reuters, 2005)

A. Winfield, J. Sa, C. Fernandez-Gago, C. Dixon, and M. Fisher, "On the Formal Specification of Emergent Behaviours of Swarm Robotics Systems",
International Journal of Advanced Robotics Systems, vol. 2, SAGE Publishing, pp. 363-371, 2005. DOI More..

Abstract

It is a characteristic of swarm robotics that specifying overall emergent swarm behaviours in terms of the low-level behaviours of individual robots is very difficult. Yet if swarm robotics is to make the transition from the laboratory to real-world engineering realisation we need such specifications. This paper explores the use of temporal logic to formally specify, and possibly also prove, the emergent behaviours of a robotic swarm. The paper makes use of a simplified wireless connected swarm as a case study with which to illustrate the approach. Such a formal approach could be an important step toward a disciplined design methodology for swarm robotics.

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