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6.4. Conclusion
The links between a linguistic utterance and the world of the task to be
carried out are made through references: on the one hand, references to
objects that are accessible and can be manipulated in this world, which can be
done because of the well-chosen words and expression, or because of the
combination of a pointing gesture with an appropriate linguistic expression
(in the case of multimodal systems), and on the other hand, references to
various actions that can be carried out in the world of the task. This chapter
outlines the reference resolution processes for references to objects and
actions, and shows how various utterances can be linked to one another by
anaphora and coreference relations that a system has to identify to be able to
manage the dialogue's coherence.
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