Evaluating a German Sketch Grammar: A Case Study on Noun Phrase Case
| Authors | |
|---|---|
| Year of publication | 2008 |
| Type | Article in Proceedings |
| Conference | Proceedings of the Sixth International Language Resources and Evaluation (LREC'08) |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.lrec-conf.org/lrec2008/ |
| Field | Informatics |
| Keywords | sketch grammar; German |
| Description | 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. |
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