Towards a Group Decision Support System: Negotiation by Argumentation

Towards a Group Decision Support System: Negotiation by Argumentation

Souad Madouri, Djamila Hamdadou
Copyright: © 2018 |Pages: 24
DOI: 10.4018/IJDAI.2018010101
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This research focuses on the design and development of an interactive multi-criteria group decision support system (GDSS). This system comprises a set of agents communicating through messages. They aim to find an adequate area that can best address certain criteria among a set of variants (e.g. localization of new infrastructure, shopping mall, hospital, etc.). A GDSS is designed and relies mainly on the presentation of the territory through the functionalities of geographic information system (GIS), and the representation of the multiplicity and diversity of decision makers through the functionalities of a multi-agents system (MAS). Moreover, an argumentation-based negotiation protocol MAS module is provided. This approach is justified by the argumentative nature of the process by which participants justify their choices in order to reach a collective decision. This is achieved by exploiting the multi-criteria methods with an analytic hierarchy process (AHP) and Electre III.
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In (Madouri et al., 2011), the authors have developed a GDSS named SIGMA (System Information Geographic Multi Agents), the latter is based on concession negotiation. This GDSS is composed of two main modules namely the GIS module and the MAS module:

GIS Module

This module incorporates generic functions that are common to all GIS. The main function of the GIS module is to ensure the representation of the territory. Through its functionalities, it is possible to:

  • Manage the database

  • Archive information

  • Manipulate and interrogate geographic databases

  • Provide a spatial representation of the studied systems

  • Shape and visualize the data

MAS Module

The MAS module aims to represent the various decision makers with their own objectives, decision strategies and preferences.

To deal with the group decision where different viewpoints must be considered, it is imperative to go through a negotiation phase in order to reach a beneficial consensus. For this end, the MAS module is provided with a negotiation protocol considering an initiator 1agent in charge of the smooth functioning of the negotiation process and a set of participating agents that represent the different actors involved in the decision in TP (Hamdadou, 2008).

The figure 1 illustrates an overview of SIGMA.

Figure 1.

Group decision support system SIGMA


In this study, a contribution to the resolution of decision problems related to TP is achieved by providing a methodological approach designed to support multi decision-makers based on multilateral negotiation-based argumentation and multi-criteria analysis.

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