Potyka, Nico, Polberg, Sylwia  ORCID: https://orcid.org/0000-0002-0811-0226 and Hunter, Anthony
2019.
Polynomial-time updates of epistemic states in a fragment of probabilistic epistemic argumentation.
Presented at: 15th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU 2019),
Belgrade, Serbia,
September 18-20, 2019.
Published in: Kern-Isberner, Gabriele and Ognjanović, Zoran eds.
Symbolic and Quantitative Approaches to Reasoning with Uncertainty.
Lecture Notes in Computer Science
Springer Cham,
74–86.
10.1007/978-3-030-29765-7_7
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Abstract
Probabilistic epistemic argumentation allows for reasoning about argumentation problems in a way that is well founded by probability theory. Epistemic states are represented by probability functions over possible worlds and can be adjusted to new beliefs using update operators. While the use of probability functions puts this approach on a solid foundational basis, it also causes computational challenges as the amount of data to process depends exponentially on the number of arguments. This leads to bottlenecks in applications such as modelling opponent’s beliefs for persuasion dialogues. We show how update operators over probability functions can be related to update operators over much more compact representations that allow polynomial-time updates. We discuss the cognitive and probabilistic-logical plausibility of this approach and demonstrate its applicability in computational persuasion.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Computer Science & Informatics |
| Publisher: | Springer Cham |
| ISBN: | 978-3-030-29764-0 |
| Date of First Compliant Deposit: | 6 July 2019 |
| Date of Acceptance: | 11 June 2019 |
| Last Modified: | 12 Aug 2025 08:57 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/124051 |
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