Papers by Valencia Wagner

Literator, 2020
This article established how a mixed language spoken as a lingua franca by black residents of Tsh... more This article established how a mixed language spoken as a lingua franca by black residents of Tshwane, known as Sepitori, influenced learners who studied Setswana as a home language at three high schools in GaRankuwa, Mabopane and Soshanguve; all these three townships are located north of Pretoria’s central business district. Data were gathered from 90 learners (30 from each school) and six Setswana educators from the same schools. Learners wrote an essay in Setswana on an interesting and contemporary topic ‘free education for all university students’, while educators were interviewed individually. Data analysis showed that Sepitori significantly influenced the written output of learners. Some educators were adamant that it was unreasonable to wish away Sepitori in Setswana classrooms because learners and many educators (regardless of the subjects they taught) ordinarily spoke Sepitori at the three townships be it at school or at home.

Journal of the Digital Humanities Association of Southern Africa (DHASA), 2021
How can we transfer semantic information between two low-resourced African languages? With one la... more How can we transfer semantic information between two low-resourced African languages? With one language having more resources than the other? The problem is that African languages still lag in the advances of Natural Language Processing techniques, one reason being the lack of representative data, having a technique that can transfer information between languages can help mitigate against the data problem. This paper trains Setswana and Sepedi monolingual word vectors and uses VecMap to create cross-lingual embeddings for Setswana-Sepedi since cross-lingual embeddings can be used as a method of transferring semantic information from rich to low-resourced languages. Word embeddings are word vectors that represent words as continuous floating numbers where semantically similar words are mapped to nearby points in n-dimensional space. Each point captures the meaning of a word with semantically similar words having similar vector values near the point. The vectors are captured in a mann...

An exploration into Penultimate and Final Lengthening in Tswana (Southern Bantu)
- Stellenbosch Papers in Linguistics Plus, 2021
This study investigates the segmental lengthening patterns resulting from prosodic boundaries in ... more This study investigates the segmental lengthening patterns resulting from prosodic boundaries in Tswana, a Southern Bantu language. The aim is to shed light on the interaction between Penultimate Lengthening and Final Lengthening, providing the first quantitative investigation of these phenomena in Tswana. We conducted a production experiment that applies a widely tested design to elicit production data of two different phrasal structures in coordinated noun phrases. The results suggest that Penultimate Lengthening and Final Lengthening constitute independent mechanisms, which both apply in Tswana. Penultimate Lengthening occurs before prosodic phrase boundaries as well as before word boundaries, yet at differing degrees. Before phrase boundaries, it involves a strong lengthening effect on the vowel of the penultimate syllable. Before word boundaries, the amount of lengthening is smaller. Final lengthening operates on the final syllable before a phrase boundary, involving a larger a...

An exploration into Penultimate and Final Lengthening in Tswana (Southern Bantu)
- Stellenbosch Papers in Linguistics Plus
This study investigates the segmental lengthening patterns resulting from prosodic boundaries in ... more This study investigates the segmental lengthening patterns resulting from prosodic boundaries in Tswana, a Southern Bantu language. The aim is to shed light on the interaction between Penultimate Lengthening and Final Lengthening, providing the first quantitative investigation of these phenomena in Tswana. We conducted a production experiment that applies a widely tested design to elicit production data of two different phrasal structures in coordinated noun phrases. The results suggest that Penultimate Lengthening and Final Lengthening constitute independent mechanisms, which both apply in Tswana. Penultimate Lengthening occurs before prosodic phrase boundaries as well as before word boundaries, yet at differing degrees. Before phrase boundaries, it involves a strong lengthening effect on the vowel of the penultimate syllable. Before word boundaries, the amount of lengthening is smaller. Final lengthening operates on the final syllable before a phrase boundary, involving a larger amount on the final vowel than on the preceding consonant. This pattern is in line with the pattern observed in other languages. The amount of lengthening on the final vowel is comparable to the amount on the penultimate vowel. Given that a large increase of lengthening on the penultimate syllable has not been observed in connection with Final Lengthening, we assume that Penultimate Lengthening constitutes a language-specific mechanism that applies independently. Final Lengthening, on the other hand, might be a universal phenomenon. The perceptual salience of Penultimate Lengthening, which has been widely reported in the literature for Bantu languages, might have to do with the dynamics within the lengthening domains, namely that the lengthening in penultimate position is abrupt and relatively stronger than in final position when compared to the preceding syllable.
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Papers by Valencia Wagner