Uncertainty Corpus: Resource to Study User Affect in Complex Spoken Dialogue Systems Kate Forbes-Riley author Diane Litman author Scott Silliman author Amruta Purandare author 2008-05 text Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC‘08) Nicoletta Calzolari editor Khalid Choukri editor Bente Maegaard editor Joseph Mariani editor Jan Odijk editor Stelios Piperidis editor Daniel Tapias editor European Language Resources Association (ELRA) Marrakech, Morocco conference publication forbes-riley-etal-2008-uncertainty https://aclanthology.org/L08-1080/ 2008-05