In spite of its crucial role in discourse segmentation, there is no consensus in the literature on what a minimal discourse unit is and how it should be identified. We claim that the minimal discourse unit should be defined in terms of two linguistic criteria: syntax and prosody. We develop a heuristics for identifying minimal discourse units in (spoken) discourse and illustrate this with a piece of spontaneous conversation.
Degand, E., & Simon, A.-C. (2005). Minimal Discourse Units: Can we define them, and why should we? In Aurnague, M., Bras, M., Le Draoulec, A., & Vieu, L. (eds) (ed.), Proceedings of SEM-05. Connectors, discourse framing and discourse structure: from corpus-based and experimental analyses to discourse theories (pp. 65-74). https://hdl.handle.net/2078.5/241862