A cross-lingual induction technique for German adverbial participles

Authors:
Sina Zarrieß;Aoife Cahill;Jonas Kuhn;Christian Rohrer
Affiliations:
University of Stuttgart, Stuttgart, Germany;University of Stuttgart, Stuttgart, Germany;University of Stuttgart, Stuttgart, Germany;University of Stuttgart, Stuttgart, Germany
Venue:
NLPLING '10 Proceedings of the 2010 Workshop on NLP and Linguistics: Finding the Common Ground
Year:
2010

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Abstract

We provide a detailed comparison of strategies for implementing medium-to-low frequency phenomena such as German adverbial participles in a broad-coverage, rule-based parsing system. We show that allowing for general adverb conversion of participles in the German LFG grammar seriously affects its overall performance, due to increased spurious ambiguity. As a solution, we present a corpus-based cross-lingual induction technique that detects adverbially used participles in parallel text. In a grammar-based evaluation, we show that the automatically induced resource appropriately restricts the adverb conversion to a limited class of participles, and improves parsing quantitatively as well as qualitatively.