Computer Science: Recent submissions

Now showing items 81-100 of 171

    • Unmasking community trust issues in rural field work 

      Ufitamahoro, Marie Josée; Venter, Isabella M.; Tucker, William David; Rey-Moreno, Carlos (ACM, 2013)
      The principal objective of this paper is to describe the au thor's fieldwork and research in a remote rural area of South Africa, where a Village Telco is deployed to provide Voice over Internet Protocol on a wireless mesh ...

    • Community-based solar power revenue alternative to improve sustainability of a rural wireless mesh network 

      Rey-Moreno, Carlos; Roro, Zukile; Tucker, William David; Siya, Masbulele Jay (ACM, 2013)
      Given the needs for a clean and easy way to maintain and secure powering wireless networks in rural areas and to gen- erate revenue to guarantee the sustainability of its intended goals, an innovative approach to leverage ...

    • Improving usability and correctness of a mobile tool to help a Deaf person with pharmaceutical instruction 

      Motlhabi, Michael B.; Tucker, William David; Parker, Mariam B.; Glaser, Meryl (ACM, 2013)
      The computing for development community knows how to build user interfaces using qualitative methods for text il- literate users, especially on mobile devices. However, lit- tle work has been done speci cally targeting ...

    • Towards a sustainable business model for rural telephony 

      Rey-Moreno, Carlos; Roro, Zukile; Siya, Masbulele Jay; Simo-Reigadas, Javier; Bidwell, Nicola J.; Tucker, William David (Telkom, 2012)
      This paper presents the work done thus far towards designing a sustainable business model for rural telephony in the community of Mankosi, located in the Eastern Cape province of South Africa. The pillars of the model are ...

    • Security of a Mesh Potato Network in Ad Hoc Mode 

      Mauwa, H.; Tucker, William David (Telkom, 2013)
      Wireless Mesh Networks can provide low cost and reliable community-owned connectivity in developing rural areas. A rural community can use mesh networks to access a wide range of modern information and communication ...

    • Affective gesture feedback Instant Messaging on handhelds 

      Adesemowo, A. Kayode; Tucker, William David (Institute of Electrical and Electronics Engineers, Inc., 2004)
      Mobile devices and mobile networks are becoming more data-centric (evident in Japanese I-mode) even as mobile network voice Average Revenue Per User are declining, new stream of data services are required which must take ...

    • A framework and toolkit for the collection and analysis of QoS statistics for voice traffic in Next Generation Networks 

      Paulse, Tania M.; Tucker, William David (Telkom, 2000)
      The multi-service, multi-architecture nature of NGNs is so complex that the management of services, in addition to networks, emerges as a research challenge. Despite QoS limitations, VoIP (as opposed to VoATM), dominates ...

    • ANCAEE: A novel clustering algorithm for energy efficiency in wireless sensor networks 

      Abidoye, Ademola P.; Azeez, Nureni A.; Adesina, Ademola Olusola; Agbele, Kehinde K. (Scientific Research Publishing, 2011)
      One of the major constraints of wireless sensor networks is limited energy available to sensor nodes because of the small size of the batteries they use as source of power. Clustering is one of the routing techniques that ...

    • Context-Aware Stemming algorithm for semantically related root words 

      Agbele, Kehinde K.; Adesina, Ademola Olusola; Azeez, Nureni A.; Abidoye, Ademola P. (Institute of Electrical and Electronics Engineers (IEEE) Inc., 2012)
      There is a growing interest in the use of context-awareness as a technique for developing pervasive computing applications that are flexible and adaptable for users. In this context, however, information retrieval (IR) is ...

    • A novel approach integrating ranking functions discovery, optimization and infernce to improve retrieval performance 

      Agbele, Kehinde K.; Adesina, Ademola Olusola; Nyongesa, Henry O.; Febba, Ronald (Medwell Journals, 2010)
      The significant roles play by ranking function in the performance and success of Information Retrieval (IR) systems and search engines cannot be underestimated. Diverse ranking functions are available in IR literature. ...

    • Agent-based context-aware healthcare information retrieval using DROPT approach 

      Agbele, Kehinde K.; Adesina, Ademola Olusola; Daniel, Ekong; Seluwa, Dele (International Science Press, 2012)
      As the volume of information available on the Web information systems is growing continuously, browsing this content becomes a tedious task given the presentation of data that does meet user's aims and needs. In this paper, ...

    • ICT and information security perspectives in E-Health Systems 

      Agbele, Kehinde K.; Nyongesa, Henry O.; Adesina, Ademola Olusola (Medwell Journals, 2010)
      This study examines issues pertinent to the rapidly evolving use of information as a currency of modern economies. Access to information has important benefits that can be achieved in many areas including, social-economic ...

    • Engaging ICTs as a “Tool” for eHealth prioritization on human development and poverty reduction in the African region 

      Agbele, Kehinde K.; Adesina, Ademola Olusola; Ekong, Daniel; Seluwa, Dele (Institute of Electrical and Electronics Engineers (IEEE) Inc., 2011)
      The association connecting information and communication technologies (ICTs) and well-being or poverty remains vague and research today has resulted to divergent conclusions. This paper defines ICTs as “tools” that facilitate ...

    • User interfaces for communication bridges across the digital divide 

      Blake, Edwin H.; Tucker, William David (Springer-Verlag, 2006)
      Connecting people across the Digital Divide is as much a social effort as a technological one. We are developing a community-centred approach to learn how interaction techniques can compensate for poor communication across ...

    • Please call ME.N.U.4EVER: designing for “Callback” in rural Africa 

      Bidwell, Nicola J.; Lalmas, Mounia; Marsden, Gary; Dlutu, Bongiwe; Ntlangano, Senzo; Manjingolo, Azola; Tucker, William David; Jones, Matt; Robinson, Simon; Vartiainen, Elina; Klampanos, Iraklis (Product & Systems Internationalisation, Inc, 2011)
      Designers and developers are naïve about the ways impoverished people in rural Africa innovate new uses of mobile technology to circumvent access difficulties. Here, we report on the local appropriation of an USSD ‘Callback’ ...

    • Designing mobile phone interfaces for age diversity in South Africa: “One-World” versus diverse “Islands” 

      Renaud, Karen; Blignaut, Renette; Venter, Isabella M. (Springer, 2013)
      Designing for diversity is a laudable aim. How to achieve this, in the context of mobile phone usage by South African seniors, is a moot point. We considered this question from two possible perspectives: universal ...

    • Towards ensuring scalability, interoperability and efficient access control in a multi-domain grid-based environment 

      Azeez, Nureni A.; Venter, Isabella M. (South African Institute of Electrical Engineers, 2013)
      The application of grid computing has been hampered by three basic challenges: scalability, interoperability and efficient access control which need to be optimized before a full-scale adoption of grid computing can take ...

    • Relevant computing curricula in Sub-Saharan Africa 

      Rai, Idris; Rodrigues, Anthony; Venter, Isabella M.; Mills, Godfrey; Suleman, Hussein; Edumadze, John (2011)
      The principle objective of this research was to establish what computing curricula are required for the Sub-Saharan Africa region. Input from academics, businessmen and the analyses of curricula from several African ...

    • A bridge over the computer science graduate skill gap 

      Blignaut, Renette; Venter, Isabella M.; Renaud, Karen (2013)
      Universities are increasingly required to respond to the ever evolving needs of an ever more sophisticated and globalised workplace, which requires well-rounded workers with more than mere technical knowledge. Employers ...

    • A dependable model for attaining maximum authetication security procedure in a grid based environment 

      Azeez, Nureni A.; Abidoye, Ademola P.; Agbele, Kehinde K.; Adesina, Ademola Olusola (Academic Journals Inc., 2012)
      Grid computing is an emergent computing innovation which offers endless access to computing infrastructure across various organizations (academia and industry). Since this technology allows aggregation of various computer ...