Juliette Mattioli

A multilateral multi-issue negotiation protocol

In this paper, we present a new protocol to address multilateral multi-issue negotiation in a cooperative context. We consider complex dependencies between multiple issues by modelling the preferences of the agents with a multi-criteria decision aid tool, also enabling us to extract relevant information on a proposal assessment. This information is used in the protocol to help in accelerating the search for a consensus between the cooperative agents. In addition, the negotiation procedure is defined in a crisis management context where the common objective of our agents is also considered in the preferences of a mediator agent.

Complex Event Processing approach for Strategic Intelligence

One of the key issues of strategic intelligence within a crisis situation is to build an early assessment of the situation, based on a context sensitive information interpretation and through a well constructed situation representation. Our proposal is based on the conjunction of a conceptual modelling to represent situations out of document analysis and a reactive rule-based modelling to analyze them according to a domain knowledge and a goal. This paper focuses on this situation analysis process. But we present our global approach and sum-up the situation representation and its objectives. We introduce the complex event processing formalism used for the analysis and dynamic recognition of such situations. We illustrate our approach through a case study taken from what happened during the energy crisis in California in 2001

A crisis response situation model

The first challenge in crisis response management is the early damage and needs assessment based on all incoming information from various sources such as on field deployed sensors or human observations. Likewise, it is important for an efficient crisis response management to make sure that ambiguous terminology is clearly defined, and methodologies and indicators explained. To support the damage assessment, all the relevant items need to be formally modelled and represented in a machine-readable format. For that purpose, a formal ontology would provide the basis for the verbal description of the current situation understanding as well as the underlying semantics for any fusion related tasks and display operations.

Information management from social and documentary sources in organizations

The wide adoption of social and connected tools in organizations leads them to think again about their behavior regarding how they manage their resources. They now consider the resources users can produce on various social media and how correctly index them in the organization knowledge base. We present in this paper the model of a digital ecosystem, which permits the indexing of either documentary resources or those produced on a social platform with the help of an ontology.

The K King Problem, an Abstract Model for Computing Aircraft Landing Trajectories: On Modeling a Dynamic Hybrid System with Constraints

Motivated by the problem of computing trajectories of a set of aircraft in their final descent, we introduce the K king problem, a dramatic simplification of the initial problem in which time and space are discretized. A constraint-based model relying on several specific global constraints is introduced. Computational experiments are reported and show that small instances of this problem can be solved in reasonable time.

Designing a system to capitalize both social and documentary resources

The wide adoption of social and connected tools in organizations lead them to think again about their behavior and to consider the indexing of the resources users can now produce with such tools, in the same way they index other documentary resources. This indexing process has to be done along the core frame of reference of the organization. We present in this paper the model of a system which permit the indexing with the help of an ontology of both documentary resources or those produced on a social platform resources.

Prise en compte des médias sociaux dans la gestion des connaissances de l'entreprise

La popularite des reseaux sociaux en ligne amene les organisations a repenser leurs outils de collaboration. Se pose alors la difficulte de la capitalisation des ressources echangees. Nous presentons dans cet article la modelisation et le developpement d’un ecosysteme numerique permettant la capitalisation a la fois des ressources issues d’un processus social et des ressources documentaires autour d’un referentiel partage. Le modele sous-tend aussi un processus de documentarisation adapte a ces ressources.

Enhanced maritime situation awareness with negotiator agents

French coastguard missions have become increasingly varied implying new challenges such as the reduction of the decision cycle and the expansion of available information. Thus, it involves new needs for enhanced decision support. An efficient situation awareness system has to quickly detect and identify suspicious boats. The efficiency of such a system relies on a reliable sensor fusion since a coastguard uses sensors to achieve his mission. We present an innovative approach based on multi-agent negotiation to fuse classifiers, benefiting from the efficiency of existing classification tools and from the flexibility and reliability of a multi-agent system to exploit distributed data across dispersed sources. We developed a first prototype using a basic negotiation protocol in order to validate the feasibility and the interest of our approach. The results obtained are promising and encourage us to continue on this way.