Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Coverage problem"”.
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Refinement of the Computational Vaccine Optimization Framework (OptiVax) through the development and analysis of a better algorithm for vaccine design choice
We present the maximum 𝑛-times coverage objective function from a mathematical perspective. Its goal is to select a set number of overlays to maximize a population coverage metric. We formulate two novel algorithms to solve the problem: NTimesILP and WeightSum and compare them to each other and to …
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ONLINE LEARNING WITH BANDITS FOR COVERAGE
… of precision. In this work, we formulate this problem as the {\it online set coverage problem} and propose its solution for recommendation systems and the patrol assignment problem.</p> <p>We propose a novel online reinforcement learning algorithm inspired by the Multi-Armed Bandit problem to …
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Coverage Planning for Unmanned Aerial Vehicles
… an environment. Three increasingly complex coverage problems based on the environment that needs to be covered are studied. The dissertation starts with a 2D point coverage problem where the UAV needs to visit a set of sites on the ground plane by flying on a fixed altitude plane parallel to …
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Design Distributed Control and Learning Algorithms for a Team of UAVs for Optimal Field Coverage
Optimal field coverage problem refers to an active research branch that studies how we can use a finite set of sensors, such as camera, to optimally cover a field with arbitrary shape that can either be static or dynamically change over time. The problem arises in a wide range of applications, …
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BOLTZMANN ENTROPY FOR UNDERSEA TERRAIN AIDED NAVIGATION
… Terrain Aided Navigation (UTAN) with respect to coverage path planning and creates a robust coverage path planning algorithm utilizing a new paradigm in configuration entropy. It highlights a classic challenge in the path planning problem between exploration and exploitation. Exploration ensures …
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Enhancing Signal Coverage for UHF RFID Systems
The low signal coverage problem has long been one of the most crucial problems in UHF RFID systems. In this thesis, the problem is tackled using a combination of antenna design, mathematical modelling and algorithm development. A novel UHF RFID reader antenna with 2D beam-scanning ability, a wide …
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Cellular Automata: Algorithms and Applications
… which solves a version of the convex hull problem, ensuring that the algorithm does not require a global rule change and correcting the operation in a special case. Finally, we study a modified version of an established CA-based car traffic flow model for the single-lane highway case, and …
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USAGE OF 5G IN UAV MISSIONS FOR ISR
… link to solve some of these more traditional problems. However, the 4G data link also comes with its own limitations such as downlink interference and can only be useful in scenarios with a high delay tolerance. 5G technology solves the spatial coverage problem by increasing the number of …
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Control and collective intelligence of multi-agent system
… due to its vast applications in real-world problems. Inspired by the natural MAS, this thesis primarily focuses on the study of the collective intelligence and the joint behavior of MAS, which are typically generated by a group of intelligent agents applied with autonomous controls. In …
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Coverage problems in mobile sensing
… communication, motion and computation. The term coverage is applied to the central question of how well a sensor-network senses some phenomenon to make inferences. More formally, a coverage problem involves finding an arrangement of sensors that optimizes a coverage metric. In this thesis we …
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Sampling-based coverage path planning for complex 3D structures
… the standard requirement of obstacle avoidance. Coverage planning is one such task, in which a single robot must sweep its end effector over the entirety of a known workspace. For two-dimensional environments, optimal algorithms are documented and well-understood. For threedimensional structures, …
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Cooperative exploration under communication constraints
The cooperative exploration problem necessarily involves communication among agents, while the spatial separation inherent in this task places fundamental limits on the amount of data that can be transmitted. However, the impact of limited communication on the exploration process has not been fully …
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Coordinated Sensor-Based Area Coverage and Cooperative Localization of a Heterogeneous Fleet of Autonomous Surface Vessels (ASVs)
Sensor coverage with fleets of robots is a complex task requiring solutions to localization, communication, navigation and basic sensor coverage. Sensor coverage of large areas is a problem that occurs in a variety of different environments from terrestrial to aerial to aquatic. In this thesis we …
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On the Capacity Modelling in 3G Mobile Wireless Communications Systems
… capacity<br/>bounds of these systems as well as coverage boundaries are continuously changing according to traffic conditions. WCDMA is designed to provide variable data rates, which further complicate the capacity analysis. <br/><br/>Active user capacity analysis in the Universal Mobile …
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Safe and reliable dynamic coverage control for multi-agent systems
In this dissertation, we study the dynamic coverage problem for multi-agent systems, where the main objective of a group of mobile agents is to explore a given compact region. Qualitatively, the coverage goal can be described as gathering sensory information for each point in the compact domain up …
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MCAO for Extremely Large Telescopes: the cases of LBT and E-ELT
… study. These two systems takle the sky coverage problem in two dierent ways. The layer oriented approach of NIRVANA, coupled with multi-pyramids wavefront sensors, takes advantage of the optical co-addition of the signal coming from up to 12 NGS in a annular 2' to 6' technical FoV and up …
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Cellular diagnostic systems using hidden Markov models
… amounts of data in order to trouble-shoot system problems. Part of the difficulty of this task is that for many complicated problems such as hand-off failure, clues about the cause of the failure are hidden deep within the statistics of underlying dynamic physical phenomena like fading, shadowing, …