Browsing TKD - Institutt for informasjonsteknologi by Title

Now showing items 374-393 of 934

    • Gravitational Entropy and Inflation 

      Elgarøy, Øystein; Grøn, Øyvind (Entropy;15 (9), Journal article; Peer reviewed, 2013-09-04)
      The main topic of this paper is a description of the generation of entropy at the end of the inflationary era. As a generalization of the present standard model of the Universe dominated by pressureless dust and a Lorentz ...

    • GridHTM: Grid-Based Hierarchical Temporal Memory for Anomaly Detection in Videos 

      Monakhov, Vladimir; Thambawita, Vajira L B; Halvorsen, Pål; Riegler, Michael (Peer reviewed; Journal article, 2023)
      The interest in video anomaly detection systems that can detect different types of anomalies, such as violent behaviours in surveillance videos, has gained traction in recent years. The current approaches employ deep ...

    • Hadoop mapreduce scheduling paradigms 

      Johannessen, Roger; Yazidi, Anis; Feng, Boning (Chapter; Peer reviewed, 2017)
      Apache Hadoop is one of the most prominent and early technologies for handling big data. Different scheduling algorithms within the framework of Apache Hadoop were developed in the last decade. In this paper, we attempt ...

    • Hallmarks of Criticality in Neuronal Networks Depend on Cell Type and the Temporal Resolution of Neuronal Avalanches 

      Heiney, Kristine; Valderhaug, Vibeke Devold; Huse Ramstad, Ola; Sandvig, Ioanna; Sandvig, Axel; Nichele, Stefano (International Journal of Unconventional Computing;Volume 16, Number 4 (2021), Peer reviewed; Journal article, 2021)
      The human brain has a remarkable capacity for computation, and it has been theorized that this capacity arises from the brain self-organizing into the critical state, a dynamical state poised between ordered and dis- ordered ...

    • Handle Diameter and the Influence on the Ergonomics of Crutches 

      Bertolaccini, Guilherme S.; Vasquez, Melissa Marin; Bianchi, Ana Carolina; Sandnes, Frode Eika; Paschoarelli, Luis C.; Medola, Fausto Orsi (Chapter; Peer reviewed, 2017)
      The research in the field of ergonomics can contribute to the design process of Assistive Technologies using objective and subjective data measurements. The auxiliary crutches are assistive devices commonly ...

    • Head-Mounted Augmented Reality Displays on the Cheap: A DIY Approach to Sketching and Prototyping Low-Vision Assistive Technologies 

      Sandnes, Frode Eika; Eika, Evelyn (Journal article; Peer reviewed, 2017)
      Several wearable augmented reality devices have emerged in recent years. Although these devices target users with 20/20 vision, they have also been explored as low vision aids. However, such devices are still relatively ...

    • Heterogeneities in electricity grids strongly enhance non-Gaussian features of frequency fluctuations under stochastic power input 

      Wolff, Matthias; Schmietendorf, Katrin; Lind, Pedro; Kamps, Oliver; Peinke, Joachim; Maass, Philipp (Chaos;Volume 29, Issue 10, Journal article; Peer reviewed, 2019-10-08)
      Stochastic feed-in of fluctuating renewable energies is steadily increasing in modern electricity grids, and this becomes an important risk factor for maintaining power grid stability. Here, we study the impact of wind ...

    • Heuristic evaluations of the accessibility of learning management systems (LMSs) as authoring tools for teachers 

      Chen, Weiqin; Sanderson, Norun Christine; Kessel, Siri; Królak, Aleksandra (Journal article; Peer reviewed, 2015)
      With the development of e-education and e-society it is important for information and communication systems and services to be equally accessible to all users, including people with disabilities. Learning Management Systems ...

    • HIDE: Short IDs for Robust and Anonymous Linking of Users Across Multiple Sessions in Small HCI Experiments 

      Sandnes, Frode Eika (Conference on Human Factors in Computing Systems;CHI EA '21: Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems, Conference object, 2021-05-08)
      Record linking is needed to analyze observations across multiple sessions. However, recent privacy legislature such as the General Data Protection Regulations (GDPR) restricts the storage of information that identify ...

    • The Hierarchical Continuous Pursuit Learning Automation for Large Numbers of Actions 

      Yazidi, Anis; Zhang, Xuan; Lei, Jiao; Oommen, John (Chapter; Peer reviewed, 2018-05-22)
      Although the field of Learning Automata (LA) has made significant progress in the last four decades, the LA-based methods to tackle problems involving environments with a large number of actions are, in reality, relatively ...

    • The Hierarchical Continuous Pursuit Learning Automation: A Novel Scheme for Environments With Large Numbers of Actions 

      Yazidi, Anis; Zhang, Xuan; Lei, Jiao; Oommen, John (IEEE Transactions on Neural Networks and Learning Systems;Volume: 31, Issue: 2, Journal article; Peer reviewed, 2019)
      Although the field of learning automata (LA) has made significant progress in the past four decades, the LA-based methods to tackle problems involving environments with a large number of actions is, in reality, relatively ...

    • Hierarchical MPC of Hybrid Power Systems based on Fuzzy Discrete Abstraction 

      Zhang, Jianhua; Xia, Jiajun (IFAC-PapersOnLine;Volume 53, Issue 2, 2020, Peer reviewed; Journal article, 2020-04-14)
      A hierarchical control approach is proposed for hybrid systems with discrete-valued input based on fuzzy discrete abstraction and model predictive control (MPC) scheme. The system is firstly abstracted to a discrete event ...

    • High Availability and Performance of Database in the Cloud - Traditional Master-slave Replication versus Modern Cluster-based Solutions 

      Shrestha, Raju (Chapter; Peer reviewed, 2017)
      High availability (HA) of database is critical for the high availability of cloud-based applications and services. Master-slave replication has been traditionally used since long time as a solution for this. Since ...

    • High-frequency expansions for time-periodic Lindblad generators 

      Schnell, Alexander; Denysov, Sergiy; Eckardt, André (Physical review B (PRB);104, 165414, Peer reviewed; Journal article, 2021-10-15)
      Floquet engineering of isolated systems is often based on the concept of the effective time-independent Floquet Hamiltonian, which describes the stroboscopic evolution of a periodically driven quantum system in steps of ...

    • High-resolution lead–lag relations between Barents Sea temperatures, the AMOC and the AMO during 1971-2018 

      Seip, Knut Lehre; Wang, Hui (Peer reviewed; Journal article, 2023)
      The direction of heat transport from the atmosphere to the Barents Sea, and between the Barents Sea and the North Atlantic is important for understanding the interplay between Greenland ice melting and anthro- pogenic ...

    • Higher harmonics of azimuthal anisotropy in relativistic heavy-ion collisions in HYDJET++ model 

      Bravina, L. V.; Johansson, B. H.; Eyyubova, G. Kh.; Korotkikh, V. L.; Lokhtin, I. P.; Malinina, L. V.; Petrushanko, S. V.; Snigirev, A. M.; Zabrodin, E. E. (The European Physical Journal C;74(3), Journal article; Peer reviewed, 2014)
      The LHC data on azimuthal anisotropy harmonics from PbPb collisions at center-of-mass energy 2.76TeV per nucleon pair are analyzed and interpreted in the framework of the HYDJET++ model. The cross-talk of elliptic v2 and ...

    • The Hilbert Scheme of Buchsbaum space curves 

      Kleppe, Jan Oddvar (Annales de l'Institut Fourier;62, Journal article; Peer reviewed, 2012)
      We consider the Hilbert scheme H(d,g) of space curves C with homogeneous ideal I(C):=H_{*}^0(\sI_C) and Rao module M:=H_{*}^1(\sI_C). By taking suitable generizations (deformations to a more general curve C') of C, we ...

    • Historical Oslo on a handheld device - a mobile augmented reality application 

      Chen, Weiqin (Procedia Computer Science;35, Journal article; Peer reviewed, 2014-09)
      Mobile augmented reality (AR) applications can provide just-in-time information based on the user's preferences and context and thus improve the tourist experience. Due to various problems, the potential of this technology ...

    • Homotopy continuation methods for coupled-cluster theory in quantum chemistry 

      Faulstich, Fabian M.; Laestadius, Andre (Molecular Physics;, Peer reviewed; Journal article, 2023)
      Homotopy methods have proven to be a powerful tool for understanding the multitude of solutions provided by the coupled-cluster polynomial equations. This endeavor has been pioneered by quantum chemists that have undertaken ...

    • HOST-ATS: automatic thumbnail selection with dashboard-controlled ML pipeline and dynamic user survey 

      Husa, Andreas; Midoglu, Cise; Hammou, Malek; Halvorsen, Pål; Riegler, Michael (MMSys: ACM Multimedia Systems;MMSys '22: Proceedings of the 13th ACM Multimedia Systems Conference, Conference object, 2022)
      We present HOST-ATS, a holistic system for the automatic selection and evaluation of soccer video thumbnails, which is composed of a dashboard-controlled machine learning (ML) pipeline, and a dynamic user survey. The ML ...