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Tshephisho Joseph Sefara

Observed names: Joseph Sefara, Sefara, Joseph, Sefara, Tshephisho, T.J. Sefara, Tshephisho J. Sefara, Tshephisho Sefara, Tshepisho J Sefara
ORCID: 0000-0002-5197-7802
Observed ORCID: 0000-0002-5197-7802
OpenAlex ID: A5045154244
Digital forensics supported by machine learning for the detection of online sexual predatory chats
2021 · C.H. Ngejane, J.H.P. Eloff, et al. · Forensic Science International Digital Investigation · 44
NL-Augmenter 🦎 → 🐍 A Framework for Task-Sensitive Natural Language Augmentation
2023 · Kaustubh Dhole, Varun Gangal, et al. · Northern European Journal of Language Technology · 41
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Automatic Speaker Recognition System based on Machine Learning Algorithms
2019 · Tumisho Billson Mokgonyane, Tshephisho Joseph Sefara, et al. · Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA) · 41
The Effects of Normalisation Methods on Speech Emotion Recognition
2019 · Tshephisho Joseph Sefara · International Multidisciplinary Information Technology and Engineering Conference (IMITEC) · 39
Emotional Speaker Recognition based on Machine and Deep Learning
2020 · Tshephisho Joseph Sefara, Tumisho Billson Mokgonyane · International Multidisciplinary Information Technology and Engineering Conference (IMITEC) · 25
Investigating an approach for low resource language dataset creation, curation and classification: Setswana and Sepedi
2020 · Marivate, Vukosi, Sefara, Tshephisho, et al. · arXiv (Cornell University) · 24
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Transformer-based Machine Translation for Low-resourced Languages embedded with Language Identification
2021 · Tshephisho J. Sefara, Skhumbuzo G. Zwane, et al. · Conference on Information Communications Technology and Society (ICTAS) · 21
HMM-based Speech Synthesis System incorporated with Language Identification for Low-resourced Languages
2019 · Tshephisho Joseph Sefara, Tumisho Billson Mokgonyane, et al. · 14
The Effects of Data Size on Text-Independent Automatic Speaker Identification System
2019 · Tumisho Billson Mokgonyane, Tshephisho Joseph Sefara, et al. · 13
The Automatic Recognition of Sepedi Speech Emotions Based on Machine Learning Algorithms
2018 · Phuti J Manamela, Madimetja J Manamela, et al. · 13
A Toolkit for Text Extraction and Analysis for Natural Language Processing Tasks
2022 · Tshephisho Joseph Sefara, Mahlatse Mbooi, et al. · International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems (icABCD) · 12
Optimizing translation for low-resource languages: Efficient fine-tuning with custom prompt engineering in large language models
2025 · Pitso Walter Khoboko, Vukosi Marivate, et al. · Machine Learning with Applications · 11
Coronavirus disease (COVID-19) case data - South Africa
2020 · Marivate, Vukosi, Arbi, Riaz, et al. · Zenodo (CERN European Organization for Nuclear Research) · 10
Automatic Speaker Recognition System based on Optimised Machine Learning Algorithms
2019 · Tumisho Billson Mokgonyane, Tshephisho Joseph Sefara, et al. · IEEE AFRICON · 9
Yorùbá Gender Recognition from Speech Using Neural Networks
2019 · Tshephisho Joseph Sefara, Abiodun Modupe · International Conference on Soft Computing & Machine Intelligence (ISCMI) · 8
Text-based language identification for some of the under-resourced languages of South Africa
2016 · Tshephisho Joseph Sefara, Madimetja Jonas Manamela, et al. · International Conference on Advances in Computing and Communication Engineering · 8
Low resource language dataset creation, curation and classification: Setswana and Sepedi -- Extended Abstract
2020 · Marivate, Vukosi, Sefara, Tshephisho, et al. · arXiv (Cornell University) · 6
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The Effects of Acoustic Features of Speech for Automatic Speaker Recognition
2020 · Tumisho Billson Mokgonyane, Tshephisho Joseph Sefara, et al. · International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems (icABCD) · 5
Gender Identification in Sepedi Speech Corpus
2021 · Tshephisho Joseph Sefara, Tumisho Billson Mokgonyane · International Conference on Artificial Intelligence, Big Data, Computing and Data Communication Systems (icABCD) · 4
The development of an automatic pronunciation assistant
2019 · Tshephisho Sefara · 4
Development of a speech-enabled basic arithmetic m-learning application for foundation phase learners
2017 · Tumisho B. Mokgonyane, Tshephisho J. Sefara, et al. · IEEE AFRICON · 4
Domain-Specific Sentiment Analysis of Tweets Using Machine Learning Methods
2023 · Tshephisho Joseph Sefara, Mapitsi Roseline Rangata · Communications in computer and information science · 3
Training Cross-Lingual embeddings for Setswana and Sepedi
2021 · Mack Makgatho, Vukosi Marivate, et al. · 3
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A Natural Language Processing Technique to Identify Exaggerated News Titles
2023 · Tshephisho Joseph Sefara, Mapitsi Roseline Rangata · Lecture notes in networks and systems · 2
Practical Approach on Implementation of WordNets for South African Languages
2021 · Tshephisho Joseph Sefara, Tumisho Billson Mokgonyane, et al. · Global WordNet Conference (GWC) · 2
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Works count: 42
Citation count: 371
H-index: 11
I10-index: 13
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