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Guillet, Victor (author)This research addresses the process of task allocation in a heterogeneous multi-agent fleet through the introduction of a novel mechanism in existing decentralised consensus algorithms: bid intercession. Bid intercession refers to the principle of agents biding on behalf of other agents in decision-making architectures leveraging market-based...master thesis 2023
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Jamadar, Zeeshan (author)Anthropogenic climate change has led to irreversible Sea level rise (SLR), underscoring the urgency to implement adaptation measures. With there being a series of challenges to implement SLR adaptation, international standardisation emerges out to be a solution to address these challenges. In this research, an attempt is made to identify SLR...master thesis 2023
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Zhou, Yanzhuo (author)Byzantine consensus protocols are designed to build resilient systems to achieve consensus under Byzantine settings, maintaining safety guarantees under any network synchrony model and providing liveness in partially or fully synchronous networks.<br/>However, several Byzantine consensus protocols have been shown to violate liveness properties...master thesis 2023
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Priambodo, Bagas Ihsan (author)As demand for clean and renewable energy around the world increases, solar photovoltaic (PV) technology becomes substantially popular, especially in low-voltage (LV) distribution networks. However, the integration of PV in LV distribution networks requires careful planning as it introduces voltage violations. To maintain network voltage,...master thesis 2023
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Bouma, Johan (author)This paper explores different participation methods that could be applied in redeveloping religious heritage. Due to secularisation, religious buildings are threatened with vacancy. Churches in particular are difficult to redevelop due to their ecclesiastical and social values. Active community involvement assists in overcoming the gap in...master thesis 2023
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Winter, Levin N. (author)The testing of consensus systems has received growing attention and recent testing tools generate many faulty executions. However, there is a lack of methods that automatically analyze these outputs to identify the root causes of the bugs they found.<br/>This paper presents Isolation, a statistical bug isolation algorithm that uses message-based...bachelor thesis 2023
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Li, Wenkai (author)Concurrency bugs are easy to introduce but dif- ficult to detect, especially in implementations of distributed algorithms where concurrency non- determinism is an inherent problem. These bugs may only be identified under very specific order- ings of execution events, making them challenging to reproduce. Controlled concurrency testing tech-...bachelor thesis 2023
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Petrov, Martin (author)Consensus algorithms, as well as distributed systems in general, are vulnerable to concurrency bugs due to non-determinism. Such bugs are hard to detect since it is necessary to test using a lot of different scenarios and even then, there is no guarantee to find one. <br/><br/>Controlled concurrency testing is a proposed solution to that problem...bachelor thesis 2023
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Zwetsloot, Eva (author)In multi-agent systems reaching consensus has been a long-standing problem. A considerable amount of research has been focused on how event-triggered consensus can be used to limit the energy consumption of the communication system while still ensuring convergence to the neighbourhood of a point or a formation. These algorithms rely on having...master thesis 2023
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Couwenberg, Ruben (author)The Internet of Things (IoT) consists out of billions of devices. This vast size magnifies the security and efficiency challenges the IoT faces. Blockchain (BC) features like decentralisation, immutability and smart contracts can negate these IoT challenges. <br/>In this paper we discuss how BC based solutions can significantly increase the...bachelor thesis 2023
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Dzelme, Rihards (author)We are at the beginning of the most significant societal change since the internet. We are transitioning from a 2-dimensional browser-based interaction to immersive 3-dimensional experiences. The metaverse is not a place or a destination but a state where technology and ecosystem are symbiotic. <br/>Digital Twins, interactive toolkits,...master thesis 2022
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Papakyriakou, Thalis (author)The DC Optimal Power Flow (DC-OPF) problem is a widely-studied topic in the field of power systems. A solution to the problem consists of minimizing the running costs of the power system, through defining the optimal operating state for each entity in the system, while adhering to a set of physical constraints. A lot of research has been...master thesis 2021
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Beekhuizen, Michael (author)IoT devices have grown rapidly over the past few years. IoT devices are mostly connected to a central server that stores the data and handles end-to-end communication. Due to the increase of IoT devices, the latency with the server increases. Furthermore, when using a central server the data is at risk of being deleted or tampered with. To...bachelor thesis 2021
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Najjar, Mohamed-Youssef (author)The optimal power flow (OPF) problem is a classic and widely-studied topic in the field of power systems.Its purpose is to minimize the running costs of a power system by determining the optimal operating points,while respecting a set of physical constraints. While most power systems are currently controlled by a centralcoordinator, there is...master thesis 2020
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Görkey, Isitan (author), El Moussaoui, Chakir (author), Wijdeveld, Vincent (author), Sennema, Erik (author)Blockchain is a technology that is in use increasingly. Although owing its common use to the cryptocurrencies there is more to the blockchain technology than just the monetary use. One of these uses is by smaller groups of participants under the control of a central authority, for instance at a company. Such private blockchains use permissioned...student report 2020
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Postma, Jeroen (author)Recent studies in game-theory provided ways to steer multi-agent games to their Nash equilibrium by means of a decentralized approach. However, these approaches have not considered the internal dynamics of the individual agents. This thesis work provides decentralized control methods to account for these internal dynamics whilst ensuring that...master thesis 2020
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Brouwer, Jetse (author)Distributed ledger technology was expected to spark a technical revolution similar to the internet revolution. After the release of Bitcoin in 2008, many developments have significantly increased the performance of distributed ledger technology. Nevertheless, the first truly scalable ledger has yet to be deployed. All of them have issues with...master thesis 2020
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Lopes Parreira, Pedro (author)Multiple solutions for solving optimal power flow (OPF) have been employed, most of them using a centralised approach. However, there is another approach where every node is responsible for the local problem in order to reach a solution: the decentralised optimal power flow (D-OPF). In this thesis, the aim was to improve the speed and...master thesis 2019
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Çalış, Metin (author)Consensus problem has been a topic of interest for many research areas allowing multiple agents to reach an agreement through local information exchange. The explicit share of the state variables, however, may cause privacy issues due to the confidentiality of the initial values. In this work, asynchronous privacy-preserving consensus average...master thesis 2019
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Comans, Martijn (author), de Haas, Olav (author), Jongerius, Ricardo (author), Oudejans, Daan (author), de Smidt, Emiel (author)Bitcoin’s underlying consensus algorithm, Proof of Work, is of inefficient nature. Due to the sheer size that Bitcoin has grown to over the recent years, power consumption has increased so much that the Bitcoin network has been estimated to consume more power than the whole country of Ireland. This paper investigates several alternatives to the...student report 2019
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