Improving a tone labeling algorithm for Sesotho
| Autor: | Sabine Zerbian, Sigrid Ewert, Mpho Raborife |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Linguistics and Language
Phrase Computer science business.industry Speech recognition Intonation (linguistics) Library and Information Sciences computer.software_genre Part of speech Language and Linguistics Education Feature (linguistics) Tone (musical instrument) Artificial intelligence Computational linguistics business Algorithm computer Orthography Natural language processing |
| Zdroj: | Language Resources and Evaluation. 49:19-50 |
| ISSN: | 1574-0218 1574-020X |
| DOI: | 10.1007/s10579-014-9281-4 |
| Popis: | We report on a study that aimed to improve an existing tone label prediction algorithm for Sesotho, an official language of South Africa. Tone is an important prosodic feature of Sesotho, since speakers use tone to distinguish meaning. In order to implement tone in a Text-to-Speech system for Sesotho, a tone modeling algorithm must receive as input the tone labels of the syllables of each word. Then it can predict the appropriate intonation of the word. Since Sesotho does not mark tone labels in orthography, the labels have to be predicted according to the tonal rules of the language. The existing tone label prediction algorithm has two drawbacks, namely it implements three tonal rules only and is restricted to the clitic phrase domain. In our study, we developed an algorithm that implements four additional tonal rules and addresses all parts of speech. The results show that the latter algorithm significantly improves the existing one by increasing the number of matched tone labels. |
| Databáze: | OpenAIRE |
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