UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Epistemic graphs for representing and reasoning with positive and negative influences of arguments

Hunter, A; Polberg, S; Thimm, M; (2020) Epistemic graphs for representing and reasoning with positive and negative influences of arguments. Artificial Intelligence , 281 , Article 103236. 10.1016/j.artint.2020.103236. Green open access

[img]
Preview
Text
new_epistemic_graph_arxiv.pdf - Accepted version

Download (738kB) | Preview

Abstract

This paper introduces epistemic graphs as a generalization of the epistemic approach to probabilistic argumentation. In these graphs, an argument can be believed or disbelieved up to a given degree, thus providing a more fine–grained alternative to the standard Dung's approaches when it comes to determining the status of a given argument. Furthermore, the flexibility of the epistemic approach allows us to both model the rationale behind the existing semantics as well as completely deviate from them when required. Epistemic graphs can model both attack and support as well as relations that are neither support nor attack. The way other arguments influence a given argument is expressed by the epistemic constraints that can restrict the belief we have in an argument with a varying degree of specificity. The fact that we can specify the rules under which arguments should be evaluated and we can include constraints between unrelated arguments permits the framework to be more context–sensitive. It also allows for better modelling of imperfect agents, which can be important in multi–agent applications.

Type: Article
Title: Epistemic graphs for representing and reasoning with positive and negative influences of arguments
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.artint.2020.103236
Publisher version: https://doi.org/10.1016/j.artint.2020.103236
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Abstract argumentation, Epistemic argumentation, Bipolar argumentation
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/10090251
Downloads since deposit
11Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item