What Decisions Have You Made: Automatic Decision Detection in Conversational Speech
Pei-Yun Sabrina Hsueh, Johanna D. Moore · Edinburgh Research Explorer (University of Edinburgh) · 2007
This study addresses the problem of automatically detecting decisions in conversational speech. We formulate the problem as classifying decision-making units at two levels of granularity: dialogue acts and topic segments. We conduct an empirical analysis to determine the characteristic features of decision-making dialogue acts, and trainMaxEnt models using these features for the classification tasks. We find that models that combine lexical, prosodic, contextual and topical features yield the best results on both tasks, achieving 72% and 86% precision, respectively. The study also provides a quantitative analysis of the relative importance of the feature types.