The complexity of the warranted formula problem in propositional argumentation
Article
Hirsch, R. and Gorogiannis, N. 2010. The complexity of the warranted formula problem in propositional argumentation. Journal of Logic and Computation. 20 (2), pp. 481-499. https://doi.org/10.1093/logcom/exp074
| Type | Article |
|---|---|
| Title | The complexity of the warranted formula problem in propositional argumentation |
| Authors | Hirsch, R. and Gorogiannis, N. |
| Abstract | The notion of warrant or justification is one of the central concepts in formal models of argumentation. The dialectical definition of warrant is expressed in terms of recursive defeat: an argument is warranted if each of its counter-arguments is itself defeated by a warranted counter-argument. However, few complexity results exist on checking whether an argument is warranted in the context of deductive models of argumentation, i.e. models where an argument is a deduction of a claim from a set of premises using some logic. We investigate the computational complexity of checking whether a claim is warranted in propositional argumentation under two natural definitions of warrant and show that it is PSPACE-complete in both cases. |
| Research Group | Artificial Intelligence group |
| Publisher | Oxford University Press (OUP) |
| Journal | Journal of Logic and Computation |
| ISSN | 0955-792X |
| Electronic | 1465-363X |
| Publication dates | |
| Online | 10 Nov 2009 |
| Apr 2010 | |
| Publication process dates | |
| Submitted | 23 Jun 2009 |
| Accepted | 10 Nov 2009 |
| Deposited | 12 May 2015 |
| Output status | Published |
| Supplemental file | File Access Level Restricted |
| Copyright Statement | Access to full text restricted pending copyright check. |
| Digital Object Identifier (DOI) | https://doi.org/10.1093/logcom/exp074 |
| Language | English |
https://repository.mdx.ac.uk/item/854wq
Restricted files
Accepted author manuscript
76
total views2
total downloads1
views this month0
downloads this month