This volume is unique in its breadth of coverage on key topics in the field from a variety of leading researchers. In one volume, readers gain exposure to several perspectives in the areas of corpus annotation and analysis, dialogue system construction; as well as theoretical perspectives on communicative intention, context-based generation, and modelling of discourse structure. In this book you will find high quality articles representing current and new directions in discourse and dialogue with an emphasis on Dialogue Systems; Corpora and Corpus Tools; and Semantic and Pragmatic Modelling of Discourse and Dialogue. The majority of the articles included come from the most outstanding papers presented at the 2nd SIGdial workshop on Discourse and Dialogue held in conjunction with Eurospeech 2001. The contents are supplemented with four invited papers from internationally recognized researchers in discourse and dialogue.