Abstract:) was an influential American philosopher who made important contributions to various fields, including epistemology and cognitive science. In the last 25 years of his life, he also contributed to the computational study of defeasible reasoning and practical cognition in artificial intelligence. He developed one of the first formal systems for argumentation-based inference and he put many issues on the research agenda that are still relevant for the argumentation community today. This paper presents an appreci… Show more
“…. ] resolve conflicts of opinion between intelligent agents" (p. 361) and that, moreover, its "[argumentative] characterisations of inference encapsulate the dynamic and dialectical processes of reasoning familiar in everyday debate 19 See also [42]. 20 So, [43], for example, seem to assume that AFs analyze argumentation which starts from a "joint basis of discussion" (p. 221).…”
Section: The Knowledge Base Interpretationmentioning
In a seminal paper Phan Minh Dung (Artif. Intell. 77(2), 1995) developed the theory of abstract argumentation frameworks (AFs), which has remained a pivotal point of reference for research in AI and argumentation ever since. This paper assesses the merits of Dung's theory from an epistemological point of view. It argues that, despite its prominence in AI, the theory of AFs is epistemologically flawed. More specifically, abstract AFs don't provide a normatively adequate model for the evaluation of rational, multiproponent controversy. Different interpretations of Dung's theory may be distinguished. Dung's intended interpretation collides with basic principles of rational judgement suspension. The currently prevailing knowledge base interpretation ignores relevant arguments when assessing proponent positions in a debate. It is finally suggested that abstract AFs be better understood as a paraconsistent logic, rather than a theory of real argumentation.
“…. ] resolve conflicts of opinion between intelligent agents" (p. 361) and that, moreover, its "[argumentative] characterisations of inference encapsulate the dynamic and dialectical processes of reasoning familiar in everyday debate 19 See also [42]. 20 So, [43], for example, seem to assume that AFs analyze argumentation which starts from a "joint basis of discussion" (p. 221).…”
Section: The Knowledge Base Interpretationmentioning
In a seminal paper Phan Minh Dung (Artif. Intell. 77(2), 1995) developed the theory of abstract argumentation frameworks (AFs), which has remained a pivotal point of reference for research in AI and argumentation ever since. This paper assesses the merits of Dung's theory from an epistemological point of view. It argues that, despite its prominence in AI, the theory of AFs is epistemologically flawed. More specifically, abstract AFs don't provide a normatively adequate model for the evaluation of rational, multiproponent controversy. Different interpretations of Dung's theory may be distinguished. Dung's intended interpretation collides with basic principles of rational judgement suspension. The currently prevailing knowledge base interpretation ignores relevant arguments when assessing proponent positions in a debate. It is finally suggested that abstract AFs be better understood as a paraconsistent logic, rather than a theory of real argumentation.
“…These Wikipedia-based datasets have later been utilised to build knowledgeable dialogue agents (Li et al, 2019;Lian et al, 2019;Zhao et al, 2020b,a;Shuster et al, 2021a). Nonetheless, using arguments as a knowledge-base for dialogue agents has received less attention, with exception of, for example, Prakken et al (2020), who developed a chatbot to persuade participants to accept that university fees should remain the same by selecting arguments from an argument graph using cosine similarity.…”
Section: Related Workmentioning
confidence: 99%
“…Typically, these agents engage in conversations with people with the aim of changing their opinions on a topic or winning debates. Accordingly, success of argumentative dialogue agents has been measured by their ability to convince people to take an action such as donating to a charity Shi et al, 2020), change their position on the subject of discussion (Tan et al, 2016;Prakken et al, 2020), or attract more votes by the audience listening to their debates (Zhang et al, 2016;Slonim et al, 2021). Other work has studied argumentation with P: I feel like pushing your kids to not eat meat or dairy products is a bit too much, other than that I really don't see a problem if it's someones choice to not eat meat or dairy products.…”
Recent research on argumentative dialogues has focused on persuading people to take some action, changing their stance on the topic of discussion, or winning debates. In this work, we focus on argumentative dialogues that aim to open up (rather than change) people's minds to help them become more understanding to views that are unfamiliar or in opposition to their own convictions. To this end, we present a dataset of 183 argumentative dialogues about 3 controversial topics: veganism, Brexit and COVID-19 vaccination. The dialogues were collected using the Wizard of Oz approach, where wizards leverage a knowledge-base of arguments to converse with participants. Open-mindedness is measured before and after engaging in the dialogue using a questionnaire from the psychology literature, and success of the dialogue is measured as the change in the participant's stance towards those who hold opinions different to theirs. We evaluate two dialogue models: a Wikipedia-based and an argument-based model. We show that while both models perform closely in terms of opening up minds, the argument-based model is significantly better on other dialogue properties such as engagement and clarity.
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