Abstract Dialectical Frameworks for Text Exploration

Elena Cabrio, Serena Villata

Abstract

Textual Entailment (TE) systems aim at recognizing the relations of entailment or non entailment holding between two text fragments (i.e. a pair). The identified TE pairs are considered as independent one from the others. However, in the latest years TE systems have been challenged against a number of real world application scenarios like analyzing costumers interactions about a service, or analyzing online debates. These applications have underlined the need to move from TE pairs to TE graphs where pairs are no more independent. Moving from single pairs to graphs has the advantage of providing an overall view of the topic discussed in the text. The challenge here is to define ways to exploit such graph-based representation for text exploration. In the literature, some approaches apply abstract argumentation theory to compute the accepted arguments of a debate, but they present a number of drawbacks, e.g., the non entailment relation and the attack relation in abstract argumentation are assumed to be equivalent, but this is not always the case. In this paper, we define bipolar entailment graphs, i.e., graphs whose nodes are text fragments and the edges represent the entailment or non entailment relations. We adopt abstract dialectical frameworks to define acceptance conditions for the nodes such that the resulting framework returns us relevant information for our text exploration task. Experimental evaluation shows the feasibility of our approach.

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Paper Citation


in Harvard Style

Cabrio E. and Villata S. (2016). Abstract Dialectical Frameworks for Text Exploration . In Proceedings of the 8th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART, ISBN 978-989-758-172-4, pages 85-95. DOI: 10.5220/0005699100850095


in Bibtex Style

@conference{icaart16,
author={Elena Cabrio and Serena Villata},
title={Abstract Dialectical Frameworks for Text Exploration},
booktitle={Proceedings of the 8th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,},
year={2016},
pages={85-95},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005699100850095},
isbn={978-989-758-172-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 8th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,
TI - Abstract Dialectical Frameworks for Text Exploration
SN - 978-989-758-172-4
AU - Cabrio E.
AU - Villata S.
PY - 2016
SP - 85
EP - 95
DO - 10.5220/0005699100850095