Truth and Deception at the Rhetorical Structure Level

This paper furthers the development of methods to dis- tinguish truth from deception in textual data. We use rhetorical structure theory (RST) as the analytic framework to identify systematic differences between deceptive and truthful stories in terms of their coher- ence and structure. A sample of 36 elicited personal stories, self-ranked as truthful or deceptive, is manu- ally analyzed by assigning RST discourse relations among each story’s constituent parts. A vector space model (VSM) assesses each story’s position in multi- dimensional RST space with respect to its distance from truthful and deceptive centers as measures of the story’s level of deception and truthfulness. Ten human judges evaluate independently whether each story is deceptive and assign their confidence levels (360 evaluations total), producing measures of the expected human ability to recognize deception. As a robustness check, a test sample of 18 truthful stories (with 180 additional evaluations) is used to determine the reli- ability of our RST-VSM method in determining decep- tion. The contribution is in demonstration of the discourse structure analysis as a significant method for automated deception detection and an effective complement to lexicosemantic analysis. The potential is in developing novel discourse-based tools to alert information users to potential deception in computer- mediated texts

A Philosophy of the Essay : Scepticism, Experience, and Style

© Bloomsbury Publishing Plc 2018.Erin Plunkett draws from both analytic and continental sources to argue for the philosophical relevance of style, making the case that the essay form is uniquely suited to address the sceptical problem. The authors examined here-Montaigne, Hume, the early German Romantics, Kierkegaard and Stanley Cavell-bring into relief the relationship between scepticism and ordinary life and situate the will to know within a broader frame of meaningful human activity. The formal features of the essay call attention to time, subjectivity, and language as the existential conditions of knowledge. In contrast to foundationalist approaches, which expect philosophy to reach empirical or rational certainty, Plunkett demonstrates through these writings the philosophical advantages of a fragmentary, non-dogmatic style of writing. A Philosophy of the Essay shows how this medium can help us come to terms with the contingency and uncertainty of life

Agency, truth and meaning: judging the Hutton Report

The Hutton Report is now established as an important element of Britain's involvement in the Iraq War. In this article the ideas that underpin it are analysed. In particular, the focus is on Hutton's presuppositions concerning the nature of truth, agency, subjectivity, meaning and language. It is shown how unquestioned assumptions structured his method and shaped his conclusions. Although such presuppositions are widely shared by the public, too, a discursive conflict within the report is identified, revealing a sub-text of competing understandings that protagonists invoked. These suggest a more phenomenological and intersubjective approach to the interpretation of events. The conclusion is that Dr Kelly and the BBC were victims of a particular sense of truth and that Hutton failed to situate important actors and events within geopolitical, institutional, experiential and affective structures. The author suggests that a greater appreciation of the contingent way information enters the public domain (itself more evident in the Butler Report) is a pre-condition for better intelligence and public policy making