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Title:
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Vorhersage und Wahrnehmung deutscher Betonungsmuster
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Author:
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Petra Wagner
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Email:
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click here to access email
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Homepage:
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http://www.ikp.uni-bonn.de/~pwa
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Degree Awarded:
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Universität Bonn
, Department of Central Asian Linguistics and Cultural Studies
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Degree Date:
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2002
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Linguistic Subfield(s):
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Computational Linguistics
Phonetics
Phonology
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Subject Language(s):
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German, Standard
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Director(s):
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Winfried Lenders
Wolfgang Hess
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Abstract:
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Motivation for this thesis was the insight that phonological theories tend to be built upon questionable, often intuitively gained data. Besides, their predictive power is often tested on fragments of the language in question. To overcome this deficit of phonological theory-building, an evaluation method was developed and applied that relies on a formal representation and implementation of the rules and furthermore tests its predictions on large, objectively gathered data sets.
The central insights of the thesis are the following ones:
- syntactic phrasing only plays a minor role in German stress assignment on utterance level
- a fine-grained word class analysis helps to predict prominence on utterance level
- Frequency of occurrence of a specific word is no direct indicator of prominence in German
- Deaccentuation and stress shift, even in word-internal stress clash environments, only plays a marginal role in German
- Long sequences of unstressed syllables are prevented
- Syllable weight plays a major role in word-level stress placement: if the final syllable is significantly heavier than the penultimate one, stress falls onto the last syllable. Syllable weight hierarchy needed to be extended in order to explain all phenomena.
- If the final syllable of a word is light, stress usually falls on the stressable syllable closed the the right edge of the word.
- Syllable weight influence is less strong in stress assignment to proper names in German.
All results were formalised in order to enable their integration into speech technological applications and frameworks of computational linguistics. Finally, the results were integrated in a formalism based on optimality theoretic assumptions.
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