• A Comparative Study of Deep Learning Techniques on Frame-Level Speech Data Classification 

      Sabzi Shahrebabaki, Abdolreza; Imran, Ali Shariq; Olfati, Negar; Svendsen, Torbjørn Karl (Journal article; Peer reviewed, 2019)
      This paper provides a comprehensive analysis of the effect of speaking rate on frame classification accuracy. Different speaking rates may affect the performance of the automatic speech recognition system yielding poor ...
    • A Desktop Grid Computing Approach for Scientific Computing and Visualization 

      Constantinescu-Fuløp, Zoran (Doctoral Theses at NTNU, 1503-8181; 2008:153, Doctoral thesis, 2008)
      Scientific Computing is the collection of tools, techniques, and theories required to solve on a computer, mathematical models of problems from science and engineering, and its main goal is to gain insight in such problems. ...
    • A Framework for Speech Recognition using Logistic Regression 

      Birkenes, Øystein (Doktoravhandlinger ved NTNU, 1503-8181; 2007:165, Doctoral thesis, 2007)
      Although discriminative approaches like the support vector machine or logistic regression have had great success in many pattern recognition application, they have only achieved limited success in speech recognition. Two ...
    • A Model-based Approach for Clinical Evaluation of Left Ventricular Deformation 

      Remme, Espen W. (Doktoravhandlinger ved NTNU, 1503-8181; 2004:48, Doctoral thesis, 2004)
      Assessment of left ventricular (LV) deformation is essential for clinical evaluation of LV function and cardiac images are frequently used to evaluate the LV motion and function. By combining the images with mathematical ...
    • A Non-normal-mode Marginal State of Convection in a Porous Box with Insulating End-Walls 

      Tyvand, Peder A.; Nøland, Jonas Kristiansen (Journal article; Peer reviewed, 2019)
      The 4th order Darcy-Benard eigenvalue problem for the onset of thermal convection in a 3D rectangular porous box is investigated. We start from a recent 2D model for a rectangle with hand-picked boundary conditions defying ...
    • A Non-normal-Mode Marginal State of Convection in a Porous Rectangle 

      Tyvand, Peder A.; Nøland, Jonas Kristiansen; Storesletten, Leiv (Journal article; Peer reviewed, 2019)
      The fourth-order Darcy–Bénard eigenvalue problem for onset of thermal convection in a 2D rectangular porous box is investigated. The conventional type of solution has normal-mode dependency in at least one of the two spatial ...
    • A Smart MCDM Framework to Evaluate the Impact of Air Pollution on City Sustainability: A Case Study from China 

      Wang, Qingyong; Dai, Hong-Ning; Wang, Hao (Journal article; Peer reviewed, 2017)
      Air pollution has become one of the key environmental concerns in the urban sustainable development. It is important to evaluate the impact of air pollution on socioeconomic development since it is the prerequisite to ...
    • A system dynamics analysis of the Nordic electricity market : the transition from fossil fuelled toward a renewable supply within a liberalised electricity market 

      Vogstad, Klaus-Ole (Doktoravhandlinger ved NTNU, 1503-8181; 2005:15, Doctoral thesis, 2005)
      A system dynamic model to analyse long-term versus short-term implications of various energy policies within the context of the Nordic electricity market has been developed. The model itself provides a theory of the ...
    • A Tiered Control Plane Model for Service Function Chaining Isolation 

      Gunleifsen, Håkon; Gkioulos, Vasileios; Kemmerich, Thomas (Journal article; Peer reviewed, 2018)
      This article presents an architecture for encryption automation in interconnected Network Function Virtualization (NFV) domains. Current NFV implementations are designed for deployment within trusted domains, where overlay ...
    • A Voltage Instability Predictor Using Local Area Measurements 

      Warland, Leif (Dr. ingeniøravhandling, 0809-103X; 2002:21, Doctoral thesis, 2002)
      There has been a pressure to operate power systems closer to their security limits. This has partially been due to financial imperatives following the deregulating of markets. Other practical difficulties have been obtaining ...
    • Acceleration Feedback in Dynamic Positioning 

      Lindegaard, Karl-Petter (Dr. ingeniøravhandling, 0809-103X; 2003:74, Doctoral thesis, 2003)
      This dissertation contains new results on the design of dynamic positioning (DP) systems for marine surface vessels. A positioned ship is continuously exposed to environmental disturbances, and the objective of the DP ...
    • Achieving dependability in software-defined networking - a perspective 

      Helvik, Bjarne Emil; Heegaard, Poul Einar; Mendiratta, Veena (Chapter, 2015)
      In this paper we take a closer look at the operationof software defined networking (SDN) in intra-domain networks.The focus is on the dependability issues related to interworking ofSDN controllers, network OS (NOS), and ...
    • Active surge control of centrifugal compression systems: Theoretical and experimental results of drive actuation 

      Bøhagen, Bjørnar (Doktoravhandlinger ved NTNU, 1503-8181; 2007:126, Doctoral thesis, 2007)
      This thesis addresses modeling and active surge control of a simple compression system, using only the drive system of the compressor for actuation. Theoretical results are validated by experiments on a test rig that was ...
    • An Approach to Developing Extensible Application Composition Environments for End Users 

      Stav, Erlend (Doctoral Theses at NTNU, 1503-8181; 2006:58, Doctoral thesis, 2006)
      Most software is now developed by professional programmers, and the millions of users of “shrink-wrapped” applications never meet the developers. The skills of professional programmers are obviously required in many software ...
    • An experimental study of Hydrodynamic Forces on Cylinders and Cables in Near Axial Flow 

      Ersdal, Svein (Doktoravhandlinger ved NTNU, 1503-8181; 2004:125, Doctoral thesis, 2004)
      The thesis addresses the hydrodynamic forces on cylinders where the angle between incoming flow and the cylinder axis, the angle of attack, is low. Measured results for a rigid cylinder with length to diameter ratio of ...
    • Augmenting Bioinformatics Research with Biomedical Ontologies 

      Kusnierczyk, Waclaw (Doktoravhandlinger ved NTNU, 1503-8181; 2008:78, Doctoral thesis, 2008)
      The main objective of the reported study was to investigate how biomedical ontologies, logically structured representations of various aspects of the biomedical reality, can help researchers in analyzing experimental data. ...
    • Autonomous Grasping Using Novel Distance Estimator 

      Skaldebø, Martin Breivik; Haugaløkken, Bent Oddvar Arnesen; Schjølberg, Ingrid (Peer reviewed; Journal article, 2023)
      This paper introduces a novel distance estimator using monocular vision for autonomous underwater grasping. The presented method is also applicable to topside grasping operations. The estimator is developed for robot ...
    • CAGISTrans: Adaptable Transactional Support for Cooperative Work 

      Ramampiaro, Herindrasana (Dr. ingeniøravhandling, 0809-103X; 2001:94, Doctoral thesis, 2001)
      The theme of this thesis is on transactional support for cooperative work environments, focusing on data sharing. It is thus concerned with the provision of suitable mechanisms to manage concurrent access to shared data ...
    • Cantor minimal systems and AF-equivalence relations 

      Dahl, Heidi (Doktoravhandlinger ved NTNU, 1503-8181; 2008:54, Doctoral thesis, 2008)
    • Charge accumulation in rod-plane air gap with covered rod 

      Mauseth, Frank (Doktoravhandlinger ved NTNU, 1503-8181; 2006:239, Doctoral thesis, 2007)
      The focus of this work has been on hybrid insulation in inhomogeneous electric fields under lightning impulse voltage stress. The principal idea behind hybrid insulation is the intentional use of surface charges to ...