Browsing by Author "Kabuye, Henry"

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    Efficient Operation of Future Wireless Mesh Networks over Available Unlicensed and Licensed GSM, WiMAX and Wi-Fi Spectra in Uganda
    (International Journal of Applied Earth Observation and Geoinformation, 2011-05-08) Kabuye, Henry; Aye, Racheal
    Wireless Mesh Networks are networks in which each node communicates directly with one or more peer nodes. Originally the term 'mesh' suggests that all nodes on the network are interconnected, though most modern meshes today connect only a sub-set of nodes to each other [1]. This paper aims to describe the licensed and unlicensed spectrum that is available under UCC allocations for use in a wireless mesh network. It provides a review of currently available or developing techniques to improve the efficiency of WiMAX, Wi-Fi and GSM spectrum use in wireless mesh networks. Finally the paper recommends techniques that would improve the ability of wireless mesh networks to develop using currently allocated spectrum and suggests whether or not there is sufficient spectrum to sustain the anticipated demand for wireless mesh networks.
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    Explainable and Uncertainty Aware AI-based Ransomware Detection
    (IEEE Access, 2025-06-12) Kabuye, Henry; Biju, Issac; Yumlembam, Rahul; Jeyamohan, Neera
    Ransomware poses a serious and evolving threat, demanding detection methods that can adapt to new attack vectors while maintaining transparency and reliability. This study proposes a comprehensive framework that integrates data augmentation, explainable artificial intelligence, and uncertainty quantification to address key challenges in ransomware detection. By leveraging synthetic data generation techniques, the approach mitigates class imbalance and captures varied ransomware behaviours. Simultaneously, explainable AI methods shed light on model decisions, enhancing interpretability and building trust among cybersecurity professionals. An uncertainty-aware component flags ambiguous predictions, allowing for targeted manual reviews and minimising incorrect classifications. Experiments on multiple ransomware datasets show the framework’s ability to maintain high detection rates, even under adversarial conditions. By combining RanSAP and RDset datasets, the framework achieves marked performance improvements. When SMOTE was applied, Random Forest reached an F1-score of 0.9963, while a CNN with Monte Carlo Dropout attained 0.9906. Further incorporating CT-GAN boosted the CNN’s F1-score to 0.9978, underscoring the robustness of our approach. The results suggest that combining robust data augmentation, interpretability, and uncertainty handling offers a practical avenue for deploying reliable ransomware detection systems in real-world environments.