An Empirical View on IQA Follow-up Questions Manuel Kirschner author Raffaella Bernardi author 2007-09 text Proceedings of the 8th SIGdial Workshop on Discourse and Dialogue Harry Bunt editor Simon Keizer editor Tim Paek editor Association for Computational Linguistics Antwerp, Belgium conference publication kirschner-bernardi-2007-empirical 10.18653/v1/2007.sigdial-1.8 https://aclanthology.org/2007.sigdial-1.8/ 2007-09 43 46