A dialogue interaction module for a decision support system based on argumentation schemes to public project portfolio

Abstract

Organizations are facing the problem of having more projects than resources to implement them. In this paper, we present a dialogue interaction module of a framework for a Decision Support System (DSS) to aid in the selection of public project portfolios. The Interaction module of this DSS is based on multiple argumentation schemes and dialogue games that not only allow the system to generate and justify a recommendation. This module is also able to obtain new information during the dialogue that allows changing the recommendation according to the Decision Maker’s preferences. Researchers have commonly addressed the public portfolio selection problem with multicriteria algorithms. However, in the real life the final selection of the solution depends on the decision maker (DM). We modeled the reasoning of DM by a Dialogue Corpus. This corpus is a database, supported by an argument tree that validates the system’s recommendations with the preferences of the DM.