MARGO 0.7a

MARGO project is an Argumentation Framework for decision making. A logic language is used as a concrete data structure for holding the statements like knowledge, goals, and actions. Different priorities are attached to these items corresponding to the reliability of the knowledge, the users preferences, and the credibility of alternatives.
These concrete data structures consist of information providing the backbone of arguments. Due to the abductive nature of decision making, we built arguments by reasoning backwards. Moreover, arguments are defined as tree-like structures.
In this way, MARGO can be used as a Decision Support System, suggesting some solutions, as other classical approaches, but also providing an interactive and intelligible explanation of this choice.
Enhancements:
- In order to evaluate the previous statements, all relevant pieces of information should be taken into account, such as the likelihood of beliefs, the preferences between goals, or the expected utilities of the alternatives.
- In the previous version, these priorities were qualitatives, i.e order relations classifying the elements from the "best" to the "worst".
- However, such qualitative information is not enough in many practical applications.
- Alternatively, this version allows quantitative priorities which are expressed by a valuation function over rules, called confidence.