Evaluating a German Sketch Grammar: A Case Study on Noun Phrase Case

Kremena Ivanova, Ulrich Heid, Sabine Schulte im Walde, Adam Kilgarriff, Jan Pomikálek

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Abstract
Word sketches are part of the Sketch Engine corpus query system. They represent automatic, corpus-derived summaries of the words’ grammatical and collocational behaviour. Besides the corpus itself, word sketches require a sketch grammar, a regular expression-based shallow grammar over the part-of-speech tags, to extract evidence for the properties of the targeted words from the corpus. The paper presents a sketch grammar for German, a language which is not strictly configurational and which shows a considerable amount of case syncretism, and evaluates its accuracy, which has not been done for other sketch grammars. The evaluation focuses on NP case as a crucial part of the German grammar. We present various versions of NP definitions, so demonstrating the influence of grammar detail on precision and recall.
Anthology ID:
L08-1011
Volume:
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)
Month:
May
Year:
2008
Address:
Marrakech, Morocco
Editors:
Nicoletta Calzolari, Khalid Choukri, Bente Maegaard, Joseph Mariani, Jan Odijk, Stelios Piperidis, Daniel Tapias
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
Language:
URL:
http://www.lrec-conf.org/proceedings/lrec2008/pdf/537_paper.pdf
DOI:
Bibkey:
Cite (ACL):
Kremena Ivanova, Ulrich Heid, Sabine Schulte im Walde, Adam Kilgarriff, and Jan Pomikálek. 2008. Evaluating a German Sketch Grammar: A Case Study on Noun Phrase Case. In Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08), Marrakech, Morocco. European Language Resources Association (ELRA).
Cite (Informal):
Evaluating a German Sketch Grammar: A Case Study on Noun Phrase Case (Ivanova et al., LREC 2008)
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PDF:
http://www.lrec-conf.org/proceedings/lrec2008/pdf/537_paper.pdf