Browsing NTNU Open by Title
Now showing items 78394-78413 of 101733
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Risk Quantification to Measure Security Performance - SecurityScore Assessment Methodology
(Master thesis, 2019)With the digitalisation of information, the security aspect of it has become more important than ever before. It was reported in an independent study that 7 out of 10 attacks on information assets of an organisation are ... -
Risk Reduction for Floating Offshore Installations Through Barrier Management
(Chapter; Peer reviewed, 2015)Marine system accidents have a relatively high frequency worldwide. In Norwegian waters loss of installations has been avoided the last 20 years, but several near-misses and severe incidents confirm that the risk level is ... -
Risk Reduction Framework for Blue-Green Roofs
(Peer reviewed; Journal article, 2021)As climate change in the Nordic region brings an increase in extreme precipitation events, blue-green roofs have emerged as a solution for stormwater management, hereafter referred to as “blue-green roofs”. The addition ... -
Risk scores for prediction of 30-day mortality after transcatheter aortic valve implantation: Results from a two-center study in Norway
(Journal article; Peer reviewed, 2021)Objectives Transcatheter aortic valve implantation (TAVI)-specific risk scores have been developed based on large registry studies. Our aim was to evaluate how both surgical and novel TAVI risk scores performed in predicting ... -
Risk Stratification in Patients with Ischemic Stroke and Residual Cardiovascular Risk with Current Secondary Prevention
(Peer reviewed; Journal article, 2021)Purpose: Suboptimal secondary prevention in patients with stroke causes a remaining cardiovascular risk desirable to reduce. We have validated a prognostic model for secondary preventive settings and estimated future ... -
Risk Taking and Fiscal Smoothing with Sovereign Wealth Funds in Advanced Economies
(Journal article; Peer reviewed, 2019)In an economy with a sovereign wealth fund (SWF), the government may draw on the fund to supplement other government revenues. If the fund is invested in risky assets, this introduces a new stochastic element into the ... -
Risk taking in local governments’ financial investment making
(Journal article; Peer reviewed, 2019)This paper deals with financial sustainability within public financial management. The study examines the relative amounts of financial resources that Norwegian municipalities invest in stocks, bonds and certificates, ... -
Risk, Privacy, and Security in Computer Networks
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:227, Doctoral thesis, 2006)With an increasingly digitally connected society comes complexity, uncertainty, and risk. Network monitoring, incident management, and digital forensics is of increasing importance with the escalation of cybercrime and ... -
Risk-adjusted optimal strategies based on the Moving Average Crossover and the RSI technical trading rules : a study on the S&P 500
(Master thesis, 2017)This article tests the performance of optimized technical trading rules for the SPDR S&P 500 exchange traded fund in the period 2000 to 2016. To avoid data snooping, the optimization is performed on simulated time series ... -
Risk-aware decision-making and control of autonomous ships
(Doctoral theses at NTNU;2023:200, Doctoral thesis, 2023)Autonomous agents able to operate without human supervision require decision making capabilities that predict outcomes based on internal and external models, sensors and data. However, research on the topic of incorporating ... -
Risk-aware Motion Planning for Collision-tolerant Aerial Robots subject to Localization Uncertainty
(Chapter, 2022)This paper contributes a novel strategy towards risk-aware motion planning for collision-tolerant aerial robots subject to localization uncertainty. Attuned to the fact that micro aerial vehicles are often tasked to navigate ... -
A Risk-Based Approach in Rehabilitation of Water Distribution Networks
(Peer reviewed; Journal article, 2022)A risk-based approach to support water utilities in terms of defining pipe rehabilitation priorities is presented. In a risk analysis in the risk management process, the probability that a given event will happen and the ... -
Risk-based Autonomous Maritime Collision Avoidance Considering Obstacle Intentions
(Chapter, 2020)A robust and efficient Collision Avoidance (COLAV) system for autonomous ships is dependent on a high degree of situational awareness. This includes inference of the intent of nearby obstacles, including compliance with ... -
Risk-Based Control of Autonomous Surface Ship
(Doctoral theses at NTNU;2024:174, Doctoral thesis, 2024)The last few decades have seen tremendous technological development in the maritime industry. Improvements in navigation systems such as Global Navigation Satellite Systems have reduced measurement error and uncertainty ... -
Risk-based Convolutional Perception Models for Collision Avoidance in Autonomous Marine Surface Vessels using Deep Reinforcement Learning
(Chapter, 2023)In this work, we propose a novel policy network architecture for model-free Reinforcement Learning (RL)-based path-following and collision avoidance in marine surface vessels. By applying convolutional neural networks ... -
Risk-based decision-making support model for offshore dynamic positioning operations
(Journal article; Peer reviewed, 2021)A Dynamic Positioning (DP) system enables vessels and rigs to accurately maintain a predetermined position and heading or track. It enables precise operations under harsh environmental conditions. DP is used for a variety ... -
Risk-Based Design Methodology for an Ice-Classed Multipurpose OSV
(Master thesis, 2013)According to US Geology Survey of 2009, 30 % of the world s undiscovered gas and 13% of the world s undiscovered oil may be located in the Arctic area. Due to a high demand for energy resources and a reduction trend in the ... -
Risk-based Design of an Offshore Wind Turbine using VoI Analysis
(Chapter, 2019)Monopiles are the most common solution for supporting wind turbines in offshore conditions. At the design phase of a monopile, a frequency check is to be performed to avoid the resonance hazard with the 1P and 3P excitation, ... -
Risk-based Fatigue Design Considering Inspections and Maintenance
(Peer reviewed; Journal article, 2020)The different phases of a structure’s life-cycle are managed by different teams with little interaction. Correspondingly, the optimization of the individual phases is isolated and does not necessarily result in optimal ... -
Risk-based health-aware control of Åsgard subsea gas compression station
(Master thesis, 2018)Safe and efficient operation of subsea processing systems imposes strict requirements with respect to equipment design and reliability. This is to avoid accidental shutdowns, which can lead to expensive maintenance ...