Contribution Functions for Quantitative Bipolar Argumentation Graphs: A Principle-based Analysis
This work addresses the need for principled selection of contribution functions in argumentation systems, but it is incremental as it analyzes existing functions rather than introducing new ones.
The paper tackles the problem of quantifying argument contributions in bipolar argumentation graphs by introducing principles to analyze and compare existing contribution functions, finding that none satisfy all principles, which aids in selecting the most suitable function for specific use cases.
We present a principle-based analysis of contribution functions for quantitative bipolar argumentation graphs that quantify the contribution of one argument to another. The introduced principles formalise the intuitions underlying different contribution functions as well as expectations one would have regarding the behaviour of contribution functions in general. As none of the covered contribution functions satisfies all principles, our analysis can serve as a tool that enables the selection of the most suitable function based on the requirements of a given use case.