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Browsing by Author "Leenen, L"

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Model for peace support operations: an overview of the ICT and interoperability requirements

Author: Leenen, L ; Modise, M ; Le Roux, WH Date: Mar 2009 This paper is part of a long term research project conducted by the Council for Scientific and Industrial Research (CSIR) in South Africa. The objective of the project is to construct a model for the planning and execution of Peace Support ... Read more
Modeling and solving semiring constraint satisfaction problems by transformation to weighted semiring Max-SAT

Author: Leenen, L ; Anbulagan ; Meyer, T ; Ghose, A Date: Dec 2007 The authors present a variant of the Weighted Maximum Satisfiability Problem (Weighted Max-SAT), which is a modeling of the Semiring Constraint Satisfaction framework. They show how to encode a Semiring Constraint Satisfaction Problem (SCSP) ... Read more
Modelling of the complex societal problem of establishing a national energy sufficiency competence

Author: Roodt, JH ; Leenen, L ; Van Vuuren, JJ ; Dawood, Zubeida C Date: Jul 2020 Complex societal problems require a multidisciplinary and multi-method approach to develop models that can support the development of solutions. General morphological analysis is a qualitative method to extract information from experts through ... Read more
Modelling the cybersecurity environment using morphological ontology design engineering

Author: Jansen van Vuuren, JC ; Leenen, L ; Grobler, MM ; Chan, Ka Fai P ; Dawood, Zubeida C Date: Mar 2015 Acquiring, representing, and managing knowledge effectively has a considerable impact on constructing accurate and intelligent systems. A challenge faced by domain experts is the manner in which information about the cybersecurity environment ... Read more
An ontological knowledge base for cyber network attack planning

Author: Chan, Ka Fai P ; Theron, J ; Van Heerden, Renier P ; Leenen, L Date: Mar 2015 In modern warfare it is no longer sufficient to only focus on physical attacks and counter-measures; the threat against cyber networks is becoming increasingly significant. Modern military forces have to provide counter measures against these ... Read more
An ontology for the South African Protection of Personal Information Act

Author: Jafta, Y ; Leenen, L ; Chan, Ka Fai P Date: Jun 2020 The protection and management of data, and especially personal information, is becoming an issue of critical importance in both the business environment and in general society. Various institutions have justifiable reasons to gather the ... Read more
Proceedings of the 4th Workshop on ICT Uses in Warfare and the Safeguarding of Peace 2012 (IWSP 2012), Protea Hotel Balalaika, Sandton, 16 August 2012

Author: Van Niekerk, B ; Leenen, L ; Ramluckan, T ; Maharaj, M Date: Jul 2012 The Workshop on ICT Uses in Warfare and the Safeguarding of Peace is a note-worthy initiative that follows on three previous workshops: London (2007), Pretoria (2008), and Bela-Bela (2010). After the success of the workshops held in South ... Read more
Proposed model for a cybersecurity centre of innovation for South Africa

Author: Jansen van Vuuren, J ; Grobler, M ; Leenen, L ; Phahlamohlaka, Letlibe J Date: Jul 2014 Most communications in the new era are dependent on Information and Communication Technology (ICT). In addition, infrastructure is becoming increasingly interconnected. This not only makes lives easier, but also leaves technology users more ... Read more
Relaxations of semiring constraint satisfaction problems

Author: Leenen, L ; Meyer, T ; Ghose, A Date: Mar 2007 The Semiring Constraint Satisfaction Problem (SCSP) framework is a popular approach for the representation of partial constraint satisfaction problems. In this framework preferences can be associated with tuples of values of the variable ... Read more
Semantic technologies and big data analytics for cyber defence

Author: Leenen, L ; Meyer, T Date: Jul 2016 The Governments, military forces and other organisations responsible for cybersecurity deal with vast amounts of data that has to be understood in order to lead to intelligent decision making. Due to the vast amounts of information pertinent ... Read more
Social Engineering Attack Detection Model: SEADMv2

Author: Mouton, F ; Leenen, L ; Venter, HS Date: Oct 2015 Information security is a fast-growing discipline, and therefore the effectiveness of security measures to protect sensitive information needs to be increased. Since people are generally susceptible to manipulation, humans often prove to be ... Read more
Towards an ontological model defining the social engineering domain

Author: Mouton, F ; Leenen, L ; Malan, MM ; Venter, HS Date: Aug 2014 The human is often the weak link in the attainment of Information Security due to their susceptibility to deception and manipulation. Social Engineering refers to the exploitation of humans in order to gain unauthorised access to sensitive ... Read more
The use of semantic technologies in cyber defence

Author: Leenen, L ; Meyer, T Date: Mar 2015 Governments, military forces and other organisations responsible for cybersecurity deal with vast amounts of data that has to be understood in order to lead to intelligent decision making. Semantic technologies is a knowledge representation ... Read more
Using an ontology as a model for the implementation of the National Cybersecurity Policy Framework for South Africa

Author: Jansen van Vuuren, JC ; Leenen, L ; Zaaiman, JJ Date: Mar 2014 Many developing countries are particularly vulnerable to cyber security threats due to an enormous growth in Internet connectivity rates over the past decade. The South African government approved a draft version of its National Cybersecurity ... Read more
Using an ontology for network attack planning

Author: Van Heerden, Renier P ; Chan, Ka Fai P ; Leenen, L ; Theron, J Date: Sep 2016 The modern complexity of network attacks and their counter-measures (cyber operations) requires detailed planning. This paper presents a Network Attack Planning ontology which is aimed at providing support for planning such network operations ... Read more

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