PeopleofSuperintelligence

Researcher

Louise Leenen

Louise Leenen is a computer scientist at the University of the Western Cape in South Africa who applies artificial intelligence, constraint programming and mathematical modelling to cybersecurity. She led an Australian Postgraduate Award Industry Grant project on steel-manufacturing optimisation from 2004 to 2007, wrote papers on semiring constraint satisfaction with Tommie Meyer and Aditya Ghose, and completed a PhD in artificial intelligence at the University of Wollongong in 2009. Her 2017 paper Ant Tree Miner Amyntas, written with Frans Hendrik Botes and Retha De La Harpe, applied ant colony optimisation to feature selection for intrusion detection, and in 2019 she moved from the CSIR's Cyber Defence Research Group to the University of the Western Cape. In 2025 she co-authored the Defeasible Horn Classifier with Exceptions, a symbolic classifier learned with Answer Set Programming. She is an associate professor of computer science, holds an NRF SARChI Chair in Artificial Intelligence and Cybersecurity, and leads the CAIR node in AI and Cybersecurity.

Now at
University of the Western Cape

Timeline

  1. 2004–2007

    Steel manufacturing optimisation

    She leads an Australian Postgraduate Award Industry Grant project from 2004 to 2007, developing optimisation systems for steel manufacturing.

  2. 2005–2008

    Semiring constraint satisfaction papers

    From 2005 to 2008, she writes on semiring constraint satisfaction problems with Tommie Meyer and Aditya Ghose, including a paper on relaxations of these problems in Information Processing Letters in 2007. In 2008, she and Ghose present branch and bound algorithms for them at PRICAI 2008 in Hanoi.

  3. 2009

    A PhD at Wollongong

    She completes a PhD in artificial intelligence at the University of Wollongong in Australia in 2009, working in constraint programming. She also holds a master's degree in operations research and has specialised training in combinatorial optimisation using ILOG.

  4. 2017

    Ant Tree Miner Amyntas

    In 2017, she co-authors Ant Tree Miner Amyntas with Frans Hendrik Botes and Retha De La Harpe in the Journal of Information Warfare. The paper uses ant colony optimisation and a cost-based evaluation function to select features before inducing decision trees that classify network data for intrusion detection.

  5. 2019

    AI for cyber defence chapter

    In 2019, she and Tommie Meyer publish a chapter, Artificial Intelligence and Big Data Analytics in Support of Cyber Defense, in IGI Global's Developments in Information Security and Cybernetic Wars. The chapter gives an overview of AI and big data technologies in cyber defence and identifies areas for future research.

  6. 2019

    Joining UWC from the CSIR

    She joins the Department of Computer Science at the University of the Western Cape in 2019, after working as a Principal Researcher in the Cyber Defence Research Group at the CSIR.

  7. 2025

    A transparent symbolic classifier

    In 2025, she co-authors An Override-aware Classifier for Transparent AI with Ruvarashe Madzime and Tommie Meyer for the Southern African Conference for Artificial Intelligence Research. The paper introduces the Defeasible Horn Classifier with Exceptions, a symbolic model learned with Answer Set Programming whose ranked Horn rules give full traceability for each prediction.

  8. As of October 2026

    Associate professor and SARChI Chair

    She is an associate professor at the University of the Western Cape, where she has worked since 2019, and Acting Head of its Department of Computer Science. She holds an NRF SARChI Chair in Artificial Intelligence and Cybersecurity, is an NRF C1-rated researcher, and leads the CAIR node in AI and Cybersecurity.

Career

  1. Since 2019University of the Western CapeAssociate Professor
  2. Until 2019Council for Scientific and Industrial ResearchPrincipal Researcher

Education

  1. 2009University of WollongongPhD

From the biography.

  1. The company share of AI researchers’ top papers was 31% in 2020–2024 and 8% in 1970–1974Includes Council for Scientific and Industrial Research. We estimate where the people shaping AI worked when their most-cited papers appeared: the company share was 31% in 2020–2024 and 8% in 1970–1974, and Google led all organizations in 2020–2024.
  2. More people shaping AI studied at Massachusetts Institute of Technology than at any other institutionIncludes University of Wollongong. We estimate where the people shaping AI studied and where their careers led. Massachusetts Institute of Technology leads with 467 former students, including 291 recorded doctorates.
  3. The Massachusetts Institute of Technology trained or employed 44 of the 187 AI major-prize winners, more than any other universityIncludes University of Wollongong. The Massachusetts Institute of Technology trained or employed 44 of the 187 AI major-prize winners, more than any other university. We compare doctorate and 5+ year employment links, career timing and current workplaces for 187 major-prize and 1,111 best-paper winners.
  4. Google had the most people shaping AI every year from 2014 to 2025Our estimates of which organizations employed the most people shaping AI each year from 1955 to 2025, tracing the shift from university labs to companies.

Sources and credits

Photo: We have no published photo of Louise Leenen yet. Send us a free-licensed photo.

  1. Louise Leenen | CAIR cair.org.za. Checked 21 October 2026.
  2. Louise Leenen | CAIR cair.org.za. Checked 21 October 2026.
  3. Louise Leenen | Journal of Information Warfare jinfowar.com. Checked 21 October 2026.
  4. Louise Leenen | CAIR cair.org.za. Checked 21 October 2026.
  5. Ant Tree Miner Amyntas: Automatic, Cost-Based Feature Selection for Intrusion Detection | Journal of Information Warfare jinfowar.com. Checked 21 October 2026.
  6. Prof Louise leenen – Department Of Computer Science cs.uwc.ac.za. Checked 21 October 2026.