Using Bigrams to Identify Relationships Between Student Certainness States and Tutor Responses in a Spoken Dialogue Corpus Kate Forbes-Riley author Diane J Litman author 2005-09 text Proceedings of the 6th SIGdial Workshop on Discourse and Dialogue Laila Dybkjær editor Wolfgang Minker editor Special Interest Group on Discourse and Dialogue (SIGdial) Lisbon, Portugal conference publication forbes-riley-litman-2005-using 10.18653/v1/2005.sigdial-1.10 https://aclanthology.org/2005.sigdial-1.10/ 2005-09 87 96