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Estimating and Forecasting of Dynamic linear Gaussian State Space Models for Commodity Futures
(Masteroppgave/UIS-TN-IMF/2019;, Master thesis, 2019-06-14)The Kalman filter is used to estimate the parameters and forecast the observations in a dynamic Nelson-Siegel model a linear Gaussian state space representation for futures contracts on the commodities oil, natural gas, ... -
Estimating cardiac output from coronary CT angiography: an individualized compartment model in comparison to the Stewart–Hamilton method
(Peer reviewed; Journal article, 2023)Background: Attenuation is correlated with the concentration of contrast medium (CM) in the arteries. The cardiac output (CO) affects the concentration of CM in the circulatory system; therefore, CO affects the time–density ... -
Estimating diagnostic uncertainty in artificial intelligence assisted pathology using conformal prediction
(Peer reviewed; Journal article, 2022)Unreliable predictions can occur when an artificial intelligence (AI) system is presented with data it has not been exposed to during training. We demonstrate the use of conformal prediction to detect unreliable predictions, ... -
Estimating farmers’ willingness to pay for photovoltaic industry to improve agricultural green resources and environment
(Peer reviewed; Journal article, 2022)Based on the consideration of the level of the regional radiation effect of the photovoltaic industry, four main regions were selected as case sites in Pingluo County, Ningxia Province, for this research. The study used ... -
Estimating Pricing Rigidities in Bilateral Transactions Markets
(Peer reviewed; Journal article, 2021-05)Many price indices are constructed using bilateral transaction prices. This paper shows how the time series behavior of cross-sectional price moments can reveal useful information about pricing behavior in bilateral ... -
Estimating Salmon Price Rise Due to the Increased Presence of Lice Caused by Global Warming: A Petri Net Based Approach
(Peer reviewed; Journal article, 2021)This paper describes a conceptual model to estimate how global warming will lead to increased salmon aquaculture costs due to the increased presence of salmon lice (which are known to favour warmer climates). Usually, ... -
Estimating the Competitive Storage Model with Stochastic Trends in Commodity Prices
(Peer reviewed; Journal article, 2021)We propose a State-Space Model (SSM) for commodity prices that combines the competitive storage model with a stochastic trend. This approach fits into the economic rationality of storage decisions and adds to previous ... -
Estimating the Non-Market Value of a Single Site: The Case of the Dalsnuten Recreation Area
(Masteroppgave/UIS-SV-HH/2016;, Master thesis, 2016-06)Outdoor recreation is open access and generally without any direct monetary costs to hikers. The benefits gained by visiting recreational areas are not directly observed in a traditional market of demand and supply. ... -
Estimation and control of a one-tank process with time-varying delays
(Master thesis, 2021)This thesis presents the estimation and control of a one-tank system with varying time-delay. A part of the nonlinear system at UiS known as the two-tank is linearized around an equilibrium point and given as a state-space ... -
Estimation Error in Statistical Process Control
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06)This thesis examines estimation errors which occur in control charts with estimated parameters, the effect that these errors have on the charts and the current methods which aim to account for the errors. There is a ... -
Estimation in Apply
(Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-07-06)One of the most critical variables in an engineering project is cost. In cost estimations this variable is studied, analysed, and optimized in order to predict the expected future cost for a project and to control the ... -
Estimation in uncertain switched systems using a bank of interval observers: local vs glocal approach
(Peer reviewed; Journal article, 2020)This paper discusses some issues related with the design of a bank of interval observers for uncertain switched systems, in which several sources of uncertainty are considered: parametric uncertainties, unknown disturbances, ... -
Estimation of Adsorption Capacity of CO2, CH4, and their Binary Mixtures in Quidam Shale using LSSVM: Application in CO2 Enhanced Shale Gas Recovery and CO2 Storage
(Journal article; Peer reviewed, 2020-02)Carbon dioxide enhanced shale gas recovery depends strongly on adsorption properties of carbon dioxide and methane. In this work, Least Squares Support Vector Machine (LSSVM) optimized by Particle Swarm Optimization, has ... -
Estimation of Expected Lifetime of Highly Reliable Systems using Bayesian Analysis
(Masteroppgave/UIS-TN-ISØP/2019;, Master thesis, 2019-06)Nowadays, increasingly complex systems are critical due to the sectors and enterprises which they support. These are designed to be highly reliable and they are not expected to fail frequently. If a failure occurs, the ... -
Estimation of Extreme Load Responses in a Gearbox of 10-MW Floating Offshore Wind Turbine
(Master thesis, 2022)This thesis studies the extreme load responses experienced by a 10-MW floating wind turbine situated in the North sea. With a plan to minimise fossil fuels and redefine the energy sector by adopting more safe, efficient, ... -
Estimation of Hydrodynamic Forces on Cylinders Undergoing Flow-Induced Vibrations Based on Modal Analysis
(Peer reviewed; Journal article, 2022)The objective of the present study is estimating hydrodynamic forces acting on cylinders undergoing vortex-induced vibration (VIV) using dynamic mode decomposition (DMD). The cylinders are subjected to a uniform incoming ... -
Estimation of shear rate change in vertically oscillating non-Newtonian fluids: Predictions on particle settling
(Peer reviewed; Journal article, 2020)This study investigates the effect of oscillatory motion on velocity and shear rate change within different non-Newtonian, slightly viscoelastic fluids oscillated in a vertical U-shaped circular pipe. An estimation to ... -
Estimation of slamming coefficients on local members of offshore wind turbine foundation (jacket type) under plunging breaker
(Journal article; Peer reviewed, 2017-11)In this paper, the slamming coefficients on local members of a jacket structure under plunging breaker are studied based on numerical simulations. A 3D numerical model is used to investigate breaking wave forces on the ... -
Estimation of staff use efficiency: Evidence from the hospitality industry
(Peer reviewed; Journal article, 2022)We analyze the extent to which hospitality firms overuse staff using a production function model which considers firm heterogeneity and accounts for environmental variables in staff use. We decompose overall staff use ... -
An Estimation of the Effect of Green Financial Policies and Constraints on Agriculture Investment: Evidences of Sustainable Development Achievement in Northwest China
(Peer reviewed; Journal article, 2022)Farming' community actively participating as micro-actors in green finance schemes is critical for regional planning and development. On the basis of the extent to which financial progress and sustainable development are ...