• On corner cutting in multi-obstacle avoidance problems 

      Stoican, Florin; Grøtli, Esten Ingar; Prodan, Ionela; Oara, Cristian (Journal article, 2015)
      One challenging and not extensively studied issue in obstacle avoidance is the corner cutting problem. Avoidance constraints are usually imposed at the sampling time without regards to the intra-sample behavior of the ...
    • On Enhancing Visual Query Building over KGs Using Query Logs 

      Klungre, Vidar Norstein; Soylu, Ahmet; Giese, Martin; Waaler, Arild; Kharlamov, Evgeny (Journal article; Peer reviewed, 2018)
      Knowledge Graphs have recently gained a lot of attention and have been successfully applied in both academia and industry. Since KGs may be very large: they may contain millions of entities and triples relating them to ...
    • On Model Predictive Path Following and Trajectory Tracking for Industrial Robots 

      Arbo, Mathias Hauan; Grøtli, Esten Ingar; Gravdahl, Jan Tommy (Journal article; Peer reviewed, 2017)
      In this article the model predictive path following controller and the model predictive trajectory tracking con-troller are compared for a robotic manipulator. We consider both the Runge-Kutta and collocation based ...
    • On obtaining optimal well rates and placement for CO2 storage 

      Allen, Rebecca; Nilsen, Halvor Møll; Andersen, Odd; Lie, Knut-Andreas (Journal article; Peer reviewed, 2017)
      Large-scale storage of CO2 in saline aquifers is considered an essential technology to mitigate CO2 emissions. Storage potential has mainly been estimated based on volumetrics or detailed simulations for specific injection ...
    • On the Certificate Revocation Problem in the Maritime Sector 

      Bour, Guillaume; Bernsmed, Karin; Meland, Per Håkon; Borgaonkar, Ravishankar Bhaskarrao (Peer reviewed; Journal article, 2021)
      Maritime shipping is currently undergoing rapid digitalization, but with increasing exposure to cyber threats, there is a need to improve the security of the ship communication technology used during operations across ...
    • On the Characteristics of Internal Software Startups 

      Tkalich, Anastasiia; Edison, Henry (Chapter, 2022)
      In recent years, more attention has been given to internal software startups in practice and in research alike, yet the concept is not fully understood. Nor is it clear whether or not it significantly differs from stand-alone ...
    • On the cleansing and inspection of GPS ephemeris data 2000–2016 

      Lie, Arne; Morrison, Aiden; Sokolova, Nadezda; Topland, Morten (Chapter, 2017)
      Archived GPS ephemeris data for years 2000-2016 is investigated by cleansing and precision measures. The goal of this work was twofold: (1) to reveal and remove incorrect ephemeris data so that the cleansed data is as close ...
    • On the Contextualization of Event-Activity Mappings 

      Koschmider, Agnes; Mannhardt, Felix; Tobias, Heuser (Journal article; Peer reviewed, 2019)
      Event log files are used as input to any process mining algorithm. A main assumption of process mining is that each event has been assigned to a distinct process activity already. However, such mapping of events to activities ...
    • On the dimension of multivariate spline spaces 

      Pettersen, Kjell Fredrik (SINTEF Rapport;, Research report, 2013)
      In this paper, we define the topological structures for an arbitrary axis-aligned box partition of a parametric d-dimensional box-shaped limited domain in R^d. Then we define the d-variate spline space over this partition ...
    • On the globally exponentially convergent immersion and invariance speed observer for mechanical systems 

      Arbo, Mathias Hauan; Grøtli, Esten Ingar; Gravdahl, Jan Tommy (Journal article; Peer reviewed, 2017)
      In this article we present a reformulation of the invariance and immersion speed observer of Astolfi et al. as applied to mechanical systems with bounded inertia matrices. This is done to explore the possibility of its ...
    • On The Reliability Of Machine Learning Applications In Manufacturing Environments 

      Jourdan, Nicolas; Sen, Sagar; Husom, Erik Johannes; Garcia-Ceja, Enrique; Biegel, Tobias; Metternich, Joachim (Chapter, 2021)
      The increasing deployment of advanced digital technologies such as Internet of Things (IoT) devices and Cyber-Physical Systems (CPS) in industrial environments is enabling the productive use of machine learning (ML) ...
    • On the Stability of Community Tolerance for Aircraft Noise 

      Gelderblom, Femke B.; Gjestland, Truls; Fidell, Sanford; Berry, Bernard (Journal article; Peer reviewed, 2017)
      Although aircraft noise-induced annoyance prevalence rates vary greatly for similar noise exposure levels in different times and places, some suggest that communities have recently reacted more strongly to aircraft noise ...
    • On the Temporal Stability of People’s Annoyance with Road Traffic Noise 

      Gjestland, Truls Tormodsønn (Peer reviewed; Journal article, 2020)
      Sixty‐one social surveys on annoyance caused by road traffic noise conducted world‐wide over a period of forty‐five years have been re‐analyzed by various means for possible temporal trends. Eighteen of these surveys ...
    • On-Line PI Controller tuning Using Closed-Loop Setpoint Response 

      Shamsuzzoha, Mohammad; Skogestad, Sigurd; Halvorsen, Ivar J. (Peer reviewed; Journal article, 2010)
    • Onboarding software developers and teams in three globally distributed legacy projects: A multi-case study 

      Britto, Ricardo; Cruzes, Daniela Soares; Šmite, Darja; Sablis, Aivars (Journal article; Peer reviewed, 2017)
      Onboarding is the process of supporting new employees regarding their social and performance adjustment to their new job. Software companies have faced challenges with recruitment and onboarding of new team members, and ...
    • One-year trial of 12-hour shifts in a non-intensive care unit and an intensive care unit in a public hospital: a qualitative study of 24 nurses’ experiences 

      Ose, Solveig Osborg; Tjønnås, Maria Suong; Kaspersen, Silje Lill; Færevik, Hilde (Journal article; Peer reviewed, 2019)
      Objectives The aim of this study was to provide recommendations to hospital owners and employee unions about developing efficient, sustainable and safe work-hour agreements. Employees at two clinics of a hospital, one a ...
    • Online dimensional control of rolled steel profiles using projected fringes 

      Gåsvik, Kjell J.; Robbersmyr, Kjell G.; Vadseth, Trond (Peer reviewed; Journal article, 2020)
      Fringe projection is a versatile method for mapping the topography of surfaces. In this paper, it is used to measure the defects on the head of railroad rails while the rails are moving. Railroad rails are made by hot ...
    • Online monitoring of aluminium primary production gas composition by use of Fourier-transform infrared spectroscopy 

      Aarhaug, Thor Anders; Ferber, Alain Marc C; Kjos, Ole Sigmund; Gaertner, Heiko (Journal article; Peer reviewed, 2014)
      Online monitoring of aluminium primary production raw gas is challenging due to the high concentration of HF in the presence of water. Tunable Diode Laser (TDL) analyzers retrofitted with sapphire optical windows allow for ...
    • An ontology matching approach for semantic modeling: A case study in smart cities 

      Djenouri, Youcef; Belhadi, Hiba; Akli-Astouati, Karima; Cano, Alberto; Lin, Jerry Chun-Wei (Peer reviewed; Journal article, 2021)
      This paper investigates the semantic modeling of smart cities and proposes two ontology matching frameworks, called Clustering for Ontology Matching-based Instances (COMI) and Pattern mining for Ontology Matching-based ...
    • Ontology-Based Fault Tree Analysis Algorithms in a Fuzzy Environment for Autonomous Ships 

      Sahin, Bekir; Yazidi, Anis; Roman, Dumitru; Soylu, Ahmet (Peer reviewed; Journal article, 2021)
      This study deals with fault tree analysis algorithms based on an ontology-based approach in a fuzzy environment. We extend fuzzy fault tree analysis by embedding ontology-based fault tree structures. The ontology-based ...