TY - CONF A1 - Mills, Gregory J. A1 - Healey, Patrick G. T. T1 - Clarifying spatial descriptions : local and global effects on semantic co-ordination N2 - A key problem for models of dialogue is to explain the mechanisms involved in generating and responding to clarification requests. We report a 'Maze task' experiment that investigates the effect of 'spoof' clarification requests on the development of semantic co-ordination. The results provide evidence of both local and global semantic co-ordination phenomena that are not captured by existing dialogue co-ordination models. Y1 - 2006 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/923 UR - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-10414 ER -