An Empirical Investigation of Proposals in Collaborative Dialogues
  We describe a corpus-based investigation of proposals in dialogue. First, we describe our DRI compliant coding scheme and report our inter-coder reliability results. Next, we test several hypotheses about what constitutes a well-formed proposal. 
Barbara Di Eugenio, Pamela W. Jordan, Johanna D. Moore and Richmond H.   Thomason (University of Pittsburgh)