Blar i Faculty of Science and Technology på tittel
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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 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 ... -
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 ... -
Estimation of the Free Rotating Hook Load for WOB Estimation
(Master thesis, 2022)Today’s drilling industry emphasizes safety and deeper drilling while reducing drilling costs. Low rate of penetration (ROP) and non-productive time are two main reasons for reduced drilling efficiency. Machine Learning ... -
Estimation of the frequency of breaking waves in deep water from 3D laboratory measurements
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-12)Wave breaking is an essential aspect of the sea surface process. Although being an emerging area of research over the last 50 years, the phenomenon remains to be fully understood due to the erratic behavior of breaking ... -
Estimere posisjon ved hjelp av QR-koder
(Masteroppgave/UIS-TN-IDE/2017;, Master thesis, 2017-06-14)Oppgaven som er beskrevet i denne rapporten går ut på å lage et system som skal finne senter av et bilde oppgitt i et eksternt koordinatsystem i rommet. For å løse dette trengs det punkter som er kjent både i romkoordinatsystemet ... -
Estimering av ladestatus i en elektrisk racerbil med bruk av Kalmanfilter
(Masteroppgave/UIS-TN-IDE/2020;, Master thesis, 2020)Denne oppgaven er skrevet i samarbeid med ION Racing, en studentorganisasjon ved Universitetet i Stavanger som hvert år bygger en elektrisk racerbil. Oppgaven dreier seg om ferdigstillelse av et batteriovervåkningssystem ... -
Estimering av varmeveksler
(Masteroppgave/UIS-TN-IKM/2010;, Master thesis, 2010)Det har i oppgaven blitt utviklet et regneark for estimering av ”skall og rør”-varmevekslere, av type E-skall med innhold av rette rør og tversgående ledeplater. Det har vært et gjennomgående fokus på å gjøre regnearket ... -
Estimering i Eldfisk II modifikasjonen - en studie av timeavvik
(Masteroppgave/UIS-TN-IØRP/2012;, Master thesis, 2012)Aker Solutions MMO AS inngikk våren 2011 en kontrakt med ConocoPhillips Scandinavia AS om opprustning av plattformene på Eldfiskområdet. Kontrakten er en del av de større opprustningene som skjer på Ekofisk- og Eldfiskområdet, ...