{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T05:47:37Z","timestamp":1777528057643,"version":"3.51.4"},"reference-count":15,"publisher":"SAGE Publications","issue":"2-3","license":[{"start":{"date-parts":[[2016,10,28]],"date-time":"2016-10-28T00:00:00Z","timestamp":1477612800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Argument &amp; Computation"],"published-print":{"date-parts":[[2016,11,28]]},"abstract":"<jats:p>Models of deliberative dialogue are fundamental for developing autonomous systems that support human practical reasoning. The question discussed in this paper is whether existing models are able to capture the complexity and richness of natural deliberation. In real-world contexts, circumstances relevant to the decision can change rapidly. We reflect on today\u2019s leading model of deliberation dialogue and we propose an extension to capture how newly exchanged information about changing circumstances may shape the dialogue. Moreover, in natural deliberation, a dialogue may be successful even if a decision on what to do has not been made. A set of criteria is proposed to address the problem of when to close off the practical reasoning phase of dialogue. We discuss some measures for evaluating the success of a dialogue after closure and we present some initial efforts to introduce the new deliberation features within an existing model of agent dialogue. We believe that our extended model of dialogue may contribute to representing that richness of natural deliberative dialogue that is yet to be addressed in existing models of agent deliberation.<\/jats:p>","DOI":"10.3233\/aac-160009","type":"journal-article","created":{"date-parts":[[2016,11,29]],"date-time":"2016-11-29T11:26:05Z","timestamp":1480418765000},"page":"155-173","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":14,"title":["Towards a richer model of deliberation dialogue: Closure problem and change\u00a0of\u00a0circumstances"],"prefix":"10.1177","volume":"7","author":[{"given":"Douglas","family":"Walton","sequence":"first","affiliation":[{"name":"Centre for Research in Argumentation, Reasoning and Rhetoric, University of Windsor, Canada"}]},{"given":"Alice","family":"Toniolo","sequence":"additional","affiliation":[{"name":"School of Computer Science, University of St Andrews, UK"}]},{"given":"Timothy J.","family":"Norman","sequence":"additional","affiliation":[{"name":"Department of Electronics and Computer Science, University of Southampton, UK"}]}],"member":"179","published-online":{"date-parts":[[2016,10,28]]},"reference":[{"key":"ref001","unstructured":"L.\u00a0Amgoud and F.D.\u00a0De Saint Cyr, Measures for persuasion dialogs: A preliminary investigation, in: Computational Models of Argument, Frontiers in Artificial Intelligence and Applications, P.\u00a0Besnard, S.\u00a0Doutre and A.\u00a0Hunter, eds, Vol.\u00a0172, IOS Press, 2008, pp.\u00a013\u201324."},{"key":"ref002","doi-asserted-by":"publisher","DOI":"10.1016\/j.artint.2007.04.009"},{"key":"ref003","unstructured":"E.\u00a0Black and K.\u00a0Atkinson, Dialogues that account for different perspectives in collaborative argumentation, in: Proceedings of the Eighth International Conference on Autonomous Agents and Multiagent Systems, 2009, pp.\u00a0867\u2013874."},{"key":"ref004","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-29184-5_9"},{"key":"ref005","doi-asserted-by":"publisher","DOI":"10.1007\/3-540-49426-X_13"},{"key":"ref006","doi-asserted-by":"publisher","DOI":"10.1016\/j.artint.2007.04.010"},{"key":"ref007","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-21940-5_3"},{"key":"ref008","doi-asserted-by":"publisher","DOI":"10.1002\/int.20191"},{"key":"ref009","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-29184-5_4"},{"key":"ref010","doi-asserted-by":"publisher","DOI":"10.1093\/comjnl\/bxp061"},{"key":"ref011","unstructured":"A.\u00a0Toniolo, Models of argument for deliberative dialogue in complex domains, Ph.D. thesis, University of Aberdeen, 2013."},{"key":"ref012","unstructured":"A.\u00a0Toniolo, T.J.\u00a0Norman and K.\u00a0Sycara, An empirical study of argumentation schemes for deliberative dialogue, in: Proceedings of the Twentieth European Conference on Artificial Intelligence, Vol.\u00a0242, 2012, pp.\u00a0756\u2013761."},{"key":"ref013","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9781316340554"},{"key":"ref014","unstructured":"D.\u00a0Walton, A.\u00a0Toniolo and T.J.\u00a0Norman, Speech acts and burden of proof in computational models of deliberation dialogue, in: Proceedings of the 1st European Conference on Argumentation: Argumentation and Reasoned Action, 2015."},{"key":"ref015","unstructured":"D.N.\u00a0Walton and E.C.W.\u00a0Krabbe, Commitment in Dialogue: Basic Concepts of Interpersonal Reasoning, State University of New York Press, 1995."}],"container-title":["Argument &amp; Computation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/AAC-160009","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.3233\/AAC-160009","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.3233\/AAC-160009","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T11:53:46Z","timestamp":1777377226000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.3233\/AAC-160009"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,10,28]]},"references-count":15,"journal-issue":{"issue":"2-3","published-print":{"date-parts":[[2016,11,28]]}},"alternative-id":["10.3233\/AAC-160009"],"URL":"https:\/\/doi.org\/10.3233\/aac-160009","relation":{},"ISSN":["1946-2166","1946-2174"],"issn-type":[{"value":"1946-2166","type":"print"},{"value":"1946-2174","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,10,28]]}}}