On bidirectional Optimality Theory for dynamic contexts

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In this paper we study context&#8211;sensitive versions of bidirectional Optimality Theory (OT) which can be used to model online communication. Our guiding examples are taken from anaphora resolution. We discuss a puzzle presented by Jason Mattausch which shows that context&#8211;sensitivity may lead into circularity. In order to represent it, we have to introduce more expressive mathematical structures for BiOT. We call the fundamental structures <i>Blutner structures</i>. A core problem is to account for the epistemic asymmetry between speaker and hearer in online communication. This leads us to Blutner structures which combine bidirectional OT with Dynamic Semantics.


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