Paper: Entity-Based Local Coherence Modelling Using Topological Fields

ACL ID P10-1020
Title Entity-Based Local Coherence Modelling Using Topological Fields
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2010

One goal of natural language generation is to produce coherent text that presents in- formation in a logical order. In this pa- per, we show that topological fields, which model high-level clausal structure, are an important component of local coherence in German. First, we show in a sen- tence ordering experiment that topologi- cal field information improves the entity grid model of Barzilay and Lapata (2008) more than grammatical role and simple clausal order information do, particularly when manual annotations of this informa- tion are not available. Then, we incor- porate the model enhanced with topolog- ical fields into a natural language gen- eration system that generates constituent orders for German text, and show that the added coherence component improves performance slightly, th...