What²s next: a case study in the multidimensionality of a dialog system

In this paper we argue that conversational dialog systems must model a multidimensional space defined by syntactico-semantic, circumstantial, and interactional dimensions. We take as a testcase the interpretation of a very simple query type within a conversational navigation system that we have implemented. We outline the decision logic this system follows in interpreting next-turn and numbered turn queries, and discuss some of the interesting results that have come about from user testing of the prototype.