This thesis explores how digital nudging can be systematically represented and implemented in user interfaces through design and development resources. Nudging refers to practice of subtly guiding individuals toward desired actions without restricting their freedom of choice. In digital contexts, it relies on user interface (UI) elements to influence behavior. Despite increasing interest, the practical ...

This thesis investigates the co-optimization of state-of-the-art computer vision models and camera configurations to enable accurate, real-time soccer analysis. This work is part of the broader development of the Cyber Security Group's real-time soccer analysis system at UiT The Arctic University of Norway, a low-cost, modular solution for real-time performance analysis. By combining practical system ...

This thesis presents a novel implementation of a Non-Interactive Key Exchange (NIKE) protocol using features from Attribute-Based Encryption (ABE) to achieve a highly space-efficient key distribution scheme. Our Token-Based Key Exchange (TBKE) implementation enables scalable symmetric key generation through compact, capability-based tokens, making it particularly suited for resource-constrained ...

Distributed systems struggle with synchronization, especially when components must agree on the order of events across application or trust boundaries. Without clear causal ordering, systems can become vulnerable to inconsistencies, coordination failures, and auditability issues. This thesis presents \textbf{Chronolock}, a blockchain-hybrid system that enforces causal-time ordering across distributed ...

Wireless distributed systems face significant challenges when multiple devices share limited spectrum resources, leading to signal interference that corrupts data and impacts system performance. Flow-level network simulators, while computationally efficient, typically struggle to accurately model wireless interference scenarios, requiring users to implement complex collision handling mechanisms ...

Accurate and efficient localization of greenhouse gas (GHG) emission sources is an important challenge in environmental monitoring. Unmanned aerial vehicles (UAVs) offer a flexible platform for this task, but efficient sampling and localization remain challenging, particularly under resource constraints such as limited flight time and onboard processing capabilities. This thesis presents a simulated ...

Europe is bound by the Paris Agreement to transition to net-zero greenhouse gas emissions by 2050; the EU has further proposed a 90% emissions reduction target already for 2040. Green hydrogen (that is, hydrogen produced from clean electricity) is often framed as a key component in the transition to net-zero emissions, being a viable emissions-free alternative to fossil fuels in some contexts. ...

Industry 4.0 introduces a new approach to manufacturing, focusing on connecting and automating machines. Automated vehicles that can operate in a dynamic environment, will enable the move towards Industry 4.0 to require less manual effort. The approach will be to create a simulation of an environment, with several Automated Guided Vehicles, that use a reinforcement learning system to avoid ...

In this paper we propose a new approach for increasing physical activity (PA) in individuals with intellectual disabilities (IDs), using augmented reality exergames to increase adherence and motivation. The game encourages PA by showing virtual elements through a mobile phone camera. The elements only appeared if the player moved in the real world. The game was specifically designed for people with ...

Thanks to their high maneuverability, high flexibility, and low cost, unmanned aerial vehicles (UAVs) have been widely used for data collection in the Internet of Things (IoT). To deal with UAV's onboard battery limitation, UAV-to-UAV (U2U) wireless charging mechanism emerges as a promising solution for extending flight distance and reducing mission completion time. However, U2U charging mechanisms ...