Author:Sefara, Tshephisho Joseph; Rangata, Mapitsi RDate:Dec 2023Most general sentiment analysers degrade quality when tested on Tweets in the broadcast domain. This domain covers both radio and television broadcast. This paper proposes domain-specific data in the broadcast domain. Furthermore, it proposes ...Read more
Author:Ngxande, Mkhuseli; Tapamo, J-R; Burke, Michael GDate:Nov 2017This paper presents a literature review of driver drowsiness detection based on behavioral measures using machine learning techniques. Faces contain information that can be used to interpret levels of drowsiness. There are many facial features ...Read more
Author:Sefara, Tshephisho JDate:Nov 2019Speech emotion recognition systems require features to be extracted from the speech signal. These features include Time, Frequency, and Cepstral-domain features. To normalise features, it is a challenging task to select an appropriate ...Read more
Author:Davel, MH; Barnard, EDate:Oct 2004Bootstrapping techniques have significant potential for the efficient generation of linguistic resources such as electronic pronunciation dictionaries. The authors describe a system and an approach to bootstrapping for the development of such ...Read more
Author:Davel, MH; Barnard, EDate:Oct 2004The authors focus on factors related to the underlying rule-extraction algorithms, and demonstrate variants of the Dynamically Expanding Context algorithm, which are beneficial for this application. They show that continuous updating of the ...Read more
Author:Sefara, Tshephisho J; Mokgonyane, TBDate:Nov 2020Speaker recognition is a method which recognise a speaker from characteristics of a voice. Speaker recognition technologies have been widely used in many domains. Most speaker recognition systems have been trained on normal clean recordings, ...Read more
Author:Twala, BDate:2009Increasing the awareness of how incomplete data affects learning and classification accuracy has led to increasing numbers of missing data techniques. This paper investigates the robustness and accuracy of seven popular techniques for tolerating ...Read more
Author:Marivate, Vukosi N; Moorosi, NyallengDate:Aug 2017Data from online job boards and online professional networks present an opportunity to understand job markets as well as how professionals transition from one job/career to another. We propose a data driven approach to begin to understand a ...Read more
Author:Molale, P; Twala, B; Seeletse, SDate:Nov 2011In this study, the application of classifiers to problems in fingerprint prediction is investigated. Six supervised learning and two statistical fingerprint classification methods (classifiers) are considered: linear discriminant analysis ...Read more
Author:Sefara, Tshephisho J; Mokgonyane, TB; Manamela, MJ; Modipa, TIDate:Aug 2019Text-to-speech (TTS) synthesis systems are of benefit towards learning new or foreign languages. These systems are currently available for various major languages but not available for low-resourced languages. Scarcity of these systems may ...Read more
Author:Featherstone, Coral; Van der Poel, EDate:Jul 2017There are some aspects of visualisation that are uniquely human. This is because data visualisation is heavily influenced by the science of human visual perception, much of which emerged from the Gestalt School of Psychology. Humans can ...Read more
Author:Mboweni, IV; Ramotsoela, DT; Abu-Mahfouz, Adnan MIDate:Apr 2023The protection of critical infrastructure such as water treatment and water distribution systems is crucial for a functioning economy. The use of cyber-physical systems in these systems presents numerous vulnerabilities to attackers. To enhance ...Read more
Author:Adeleke, Jude Adekunle; Moodley, Deshendran; Rens, Gavin; Adewumi, AODate:Apr 2017Proactive monitoring and control of our natural and built environments is important in various application scenarios. Semantic Sensor Web technologies have been well researched and used for environmental monitoring applications to expose ...Read more
Author:Nwachukwu, SE; Chepkoech, M; Lysko, Albert A; Awodele, K; Mwangama, J; Burger, Chris RDate:Aug 2022The steady increase in data traffic rates and systems’ complexity have contributed to the information and communication technologies (ICT) sector’s increased energy consumption and CO 2 emissions. These pose a significant challenge to the ...Read more
Author:Nwachukwu, SE; Chepkoech, M; Lysko, Albert A; Awodele, K; Mwangama, J; Burger, Chris RDate:Aug 2022The steady increase in data traffic rates and systems’ complexity have contributed to the information and communication technologies (ICT) sector’s increased energy consumption and CO 2 emissions. These pose a significant challenge to the ...Read more
Author:Mabunda, HD; Ramotsoela, DT; Abu-Mahfouz, Adnan MIDate:Jun 2022Water distribution systems (WDS) are designed to supply potable water to businesses, industries and people in any area or location. Cyber-Physical systems (CPS) are used in water distribution systems and come with aided benefits, however, ...Read more
Author:Brandt, P; Moodley, D; Pillay, AW; Seebregts, CJ; De Oliveira, TDate:2014The development of drug resistance is a major factor impeding the efficacy of antiretroviral treatment of South Africa’s HIV infected population. While genotype resistance testing is the standard method to determine resistance, access to these ...Read more
Author:Olatinwo, DD; Hancke, G; Myburgh, H; Abu-Mahfouz, Adnan MIDate:Mar 2023Internet of things (IoT)-enabled wireless body area network (WBAN) is an emerging technology that combines medical devices, wireless devices, and non-medical devices for healthcare management applications. Speech emotion recognition (SER) is ...Read more
Author:Rosman, Benjamin SDate:Jun 2014Recent trends in robotics have seen more general purpose robots being deployed in unstructured environments for prolonged periods of time. Such robots are expected to adapt to different environmental conditions, and ultimately take on a broader ...Read more