This paper addresses the need for text visualization systems that can support discourse analysis. While fruitful work has been undertaken exploring the paradigmatic axis in systemic functional linguistics, there is much scope for complementary modeling along the syntagmatic axis. However, in exploring long-range text patterns we face the problem that it is difficult for a human analyst to track complex and unfolding relationships in what is high-dimensional data. I introduce AppAnn, a system designed to support linguists in undertaking such long-range analysis and demonstrate how it can be used to visualize patterns of appraisal in texts.
Text & Talk (founded as TEXT in 1981) is an internationally recognized forum for interdisciplinary research in language, discourse, and communication studies, focusing, among other things, on the situational and historical nature of text/talk production; the cognitive and sociocultural processes of language practice/action; and participant-based structures of meaning negotiation and multimodal alignment.