Ronell Alberts

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The application of ontologies in information systems is becoming increasingly prevalent. In particular, the use of ontologies as a conceptual view for the purpose of accessing information stored in underlying data repositories can increase the effectiveness of mechanisms for information querying and browsing. However, the process of ontology construction(More)
Web portal software is relatively easy to set up and populate from the perspective of the end-user, but it leaves the back-end database devoid of subject domain semantics due to the requirement for a generic implementation. This approach seriously hampers effective search capabilities to retrieve relevant information. Ontology-based data access (OBDA)(More)
The purpose of this paper is to assert that there is a need to design mobile services that are accessible and usable to low literacy user groups. There is currently an abundant availability of mobile phones supporting mobile services in the general population. However low literacy user groups have limited or no access to these mobile services. One of the(More)
This paper describes the features required of OWL to realise and enhance Indigenous Knowledge (IK) digital repositories. Several needs for Indigenous Knowledge management systems (IKMSs) are articulated, based on extensive stakeholder input, and analysed on the suitability of semantic web technologies in addressing them. Based on their potential for impact(More)
Rapid development methodologies are popular approaches for the development of modern software systems. The goals of these methodologies are the inclusion of the client into the analysis, design and implementation activities, as well as the acceleration of the system development phases through an iterative construction approach. These methodologies also(More)
The purpose of this paper is to provide an overview of how a digital health innovation ecosystem was conceptualised and validated for South Africa. Largely, we focus on defining strategies to build Digital Health Innovation Ecosystems in the context of developing countries, and pay particular attention to the challenges and potentials. Over a period of two(More)
Extending the reach of primary health care is important as it is both a human rights issue as well as a developmental necessity. Necessarily, the UN Millennium Development Goals and 2030 South African Development Plan afforded some appreciation to this. To achieve extended reach, Community Health Workers are being deployed within rural communities to(More)
Mobile services and mobile content is available to diverse users in possession of the necessary mobile phones. However, some of the mobile services and mobile content is text intensive and this discounts low literate users in participation in the related mobile applications. Exploring typical challenges experienced by low literate users and adapting these(More)
A large amount of research is focused on identifying malware. Once identified, the behavior of the malware must be analyzed to determine its effects on a system. This can be done by tracing through a malware binary using a disassembler or logging its dynamic behavior using a sandbox (virtual machines that execute a binary and log all dynamic events such as(More)
For centuries, rural communities have relied on their indigenous knowledge for survival and sustenance. Indigenous Knowledge (IK) is understood as local knowledge, which is unique and traditional to a specific community. Due to the fact that IK plays an important role in the general well-being of a community, IK needs to be properly collected and protected.(More)