This paper argues for the critical need to develop a deepened understanding of rhetoric, particularly ethos, in light of the emergence of sophisticated AI language users as rhetorical agents. It stresses the importance of the human element in rhetorical interpretation and thus introduces the concept of the zero persona to represent the creators and stakeholders behind AI tools. Understanding machine ethos is a pressing issue because questions of trust and reliability are at the forefront of society’s concerns over the use of this technology.

AbstractArguments may sometimes be advanced with a non-standard function. One such function, it is suggested, is the expression of identity, a practice which may play a significant role in political representation. This paper sets out to examine a number of short addresses given at the High-Level segment of the Cop26 conference, which are considered to contain instances of such argumentation. Their content is analysed and evaluated by means of the Comprehensive Assessment Procedure for Natural Argumentation (CAPNA), and an attempt is made to highlight the purposes of the delegates in addressing the conference. At a more fundamental level, the goal of this work is to assess the possibility of identifying arguments as being meant largely as statements of identity or representation, and the suitability of the CAPNA or other norm-based systems for evaluating such discourse. The speakers studied include representatives from OPEC, the Trade Unions, and the leaders of Vietnam and Liechtenstein. Ultimately, the study concludes that while further work is necessary both on understanding the relationship between argument and identity in the political arena, and on the application of argument norms to representational discourse, evaluations of this kind are meaningful and informative.

AbstractIn this paper, we formulate a procedure for assessing reasoning as it is expressed in natural arguments. The procedure is a specification of one of the three aspects of argumentation assessment distinguished in the Comprehensive Assessment Procedure for Natural Argumentation (CAPNA) (Hinton, 2021) that makes use of the argument categorisation framework of the Periodic Table of Arguments (PTA) (Wagemans, 2016, 2019, 2020c). The theoretical framework and practical application of both the CAPNA and the PTA are described, as well as the evaluation procedure that combines the two. The procedure is illustrated through an evaluation of the reasoning of two example arguments from a recently published text.

AbstractAs more and more sophisticated software is created to allow the mining of arguments from natural language texts, this paper sets out to examine the suitability of the well-established and readily available methods of corpus linguistics to the study of argumentation. After brief introductions to corpus linguistics and the concept of meta-argument, I describe three pilot-studies into the use of the terms Straw man, Ad hominem, and Slippery slope, made using the open access News on the Web corpus. The presence of each of these phrases on internet news sites was investigated and assessed for correspondence to the norms of use by argumentation theorists. All three pilot-studies revealed interesting facts about the usage of the terms by non-specialists, and led to numerous examples of the types of arguments mentioned. This suggests such corpora may be of use in two different ways: firstly, the wider project of improving public debate and educating the populace in the skills of critical thinking can only be helped by a better understanding of the current state of knowledge of the technical terms and concepts of argumentation. Secondly, theorists could obtain a more accurate picture of how arguments are used, by whom, and to what reception, allowing claims on such matters to be evidence, rather than intuition, based.