Counterfactual and Semifactual Explanations in Abstract Argumentation: Formal Foundations, Complexity and Computation

Fuente: arXiv
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Auteurs principaux: Alfano, Gianvincenzo, Greco, Sergio, Parisi, Francesco, Trubitsyna, Irina
Format: Preprint
Publié: 2024
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author Alfano, Gianvincenzo
Greco, Sergio
Parisi, Francesco
Trubitsyna, Irina
author_facet Alfano, Gianvincenzo
Greco, Sergio
Parisi, Francesco
Trubitsyna, Irina
contents Explainable Artificial Intelligence and Formal Argumentation have received significant attention in recent years. Argumentation-based systems often lack explainability while supporting decision-making processes. Counterfactual and semifactual explanations are interpretability techniques that provide insights into the outcome of a model by generating alternative hypothetical instances. While there has been important work on counterfactual and semifactual explanations for Machine Learning models, less attention has been devoted to these kinds of problems in argumentation. In this paper, we explore counterfactual and semifactual reasoning in abstract Argumentation Framework. We investigate the computational complexity of counterfactual- and semifactual-based reasoning problems, showing that they are generally harder than classical argumentation problems such as credulous and skeptical acceptance. Finally, we show that counterfactual and semifactual queries can be encoded in weak-constrained Argumentation Framework, and provide a computational strategy through ASP solvers.
format Preprint
id arxiv_https___arxiv_org_abs_2405_04081
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Counterfactual and Semifactual Explanations in Abstract Argumentation: Formal Foundations, Complexity and Computation
Alfano, Gianvincenzo
Greco, Sergio
Parisi, Francesco
Trubitsyna, Irina
Artificial Intelligence
Explainable Artificial Intelligence and Formal Argumentation have received significant attention in recent years. Argumentation-based systems often lack explainability while supporting decision-making processes. Counterfactual and semifactual explanations are interpretability techniques that provide insights into the outcome of a model by generating alternative hypothetical instances. While there has been important work on counterfactual and semifactual explanations for Machine Learning models, less attention has been devoted to these kinds of problems in argumentation. In this paper, we explore counterfactual and semifactual reasoning in abstract Argumentation Framework. We investigate the computational complexity of counterfactual- and semifactual-based reasoning problems, showing that they are generally harder than classical argumentation problems such as credulous and skeptical acceptance. Finally, we show that counterfactual and semifactual queries can be encoded in weak-constrained Argumentation Framework, and provide a computational strategy through ASP solvers.
title Counterfactual and Semifactual Explanations in Abstract Argumentation: Formal Foundations, Complexity and Computation
topic Artificial Intelligence
url https://arxiv.org/abs/2405.04081