Browsing TKD - Institutt for informasjonsteknologi by Title

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    • Small scale structures of turbulence in terms of entropy and fluctuation theorems 

      Fuchs, Andre; Queiros, Silvio D.A.; Lind, Pedro; Girard, Alain; Bouchet, Freddy; Wächter, Matthias; Peinke, Joachim (Physical Review Fluids;5, 034602, Journal article; Peer reviewed, 2020-03-11)
      We present experimental evidence that, together with the integral fluctuation theorem, which is fulfilled with high accuracy, a detailed-like fluctuation theorem holds for large entropy values in cascade processes in ...

    • Smart Data Placement Using Storage-as-a-Service Model for Big Data Pipelines 

      Khan, Akif Quddus; Nikolov, Nikolay; Matskin, Minhail; Prodan, Radu; Roman, Dumitru; Sahin, Bekir; Bussler, Christoph; Soylu, Ahmet (Peer reviewed; Journal article, 2023)

    • SmartIO: Zero-overhead Device Sharing through PCIe Networking 

      Markussen, Jonas Sæther; Kristiansen, Lars Bjørlykke; Halvorsen, Pål; Kielland-Gyrud, Halvor; Stensland, Håkon Kvale; Griwodz, Carsten (ACM Transactions on Computer Systems;Volume 38, Issue 1-2, July 2021, Peer reviewed; Journal article, 2021-07-08)
      The large variety of compute-heavy and data-driven applications accelerate the need for a distributed I/O solution that enables cost-effective scaling of resources between networked hosts. For example, in a cluster system, ...

    • Smartphone navigation support for blind and visually impaired people - A comprehensive analysis of potentials and opportunities 

      Kuriakose, Bineeth; Shrestha, Raju; Sandnes, Frode Eika (Lecture Notes in Computer Science;Volume 12189, Conference object, 2020)
      Smartphones are indispensable tools for many people for various assistive tasks. They are equipped with different sensors that provide data on motion, location and the environment. This paper explores the various sensors ...

    • Smittestopp analytics: Analysis of position data 

      Thambawita, Vajira L B; Hicks, Steven; Ewan, Jaouen; Halvorsen, Pål; Riegler, Michael (Simula SpringerBriefs on Computing;Volume 11, Chapter; Peer reviewed, 2022-06-18)
      Contact tracing applications generally rely on Bluetooth data. This type of data works well to determine whether a contact occurred (smartphones were close to each other) but cannot offer the contextual information GPS ...

    • Smittestopp Backend 

      Midoglu, Cise; Ragan-Kelley, Benjamin; Reinemo, Sven- Arne; Jahren, Jon; Halvorsen, Pål (Simula SpringerBriefs on Computing;Volume 11, Chapter; Peer reviewed; Journal article, 2022-06-18)
      An efficient backend solution is of great importance for any large-scale system, and Smittestopp is no exception. The Smittestopp backend comprises various components for user and device registration, mobile app data ...

    • Smooth estimates of multiple quantiles in dynamically varying data streams 

      Hammer, Hugo Lewi; Yazidi, Anis (Pattern Analysis and Applications;Published online:09 April 2019, Journal article; Peer reviewed, 2019-04-09)
      In this paper, we investigate the problem of estimating multiple quantiles when samples are received online (data stream). We assume a dynamical system, i.e. the distribution of the samples from the data stream changes ...

    • Soccer Game Summarization using Audio Commentary, Metadata, and Captions 

      Gautam, Sushant; Midoglu, Cise; Sabet, Saeed; Kshatri, Dinesh Baniya; Halvorsen, Pål (MM: International Multimedia Conference;MM '22: The 30th ACM International Conference on Multimedia, Conference object, 2022)
      Soccer is one of the most popular sports globally, and the amount of soccer-related content worldwide, including video footage, audio commentary, team/player statistics, scores, and rankings, is enormous and rapidly growing. ...

    • Social Financial Benefit Assessment of the Mobile Birth Registration 

      Do, van Thanh; Swafford, Clark; Khuong, Loc Huu; Do, Van Thuan (Flexible Systems Management;Agile Information Business; Exploring Managerial Implications, Journal article; Peer reviewed, 2017-09-03)
      In this paper, the usability and the usefulness of mobile technologies far beyond personal communication has been demonstrated by the Mobile Birth Registration (MBR) concept. To remove the hindrances like long distances, ...

    • Social Web in IoT: Can Evolutionary Computation and Clustering Improve Ontology Matching for Social Web of Things? 

      Belhadi, Asma; Djenouri, Djamel; Djenouri, Youcef; Belbachir, Nabil; Srivastava, Gautam (IEEE Transactions on Computational Social Systems;, Peer reviewed; Journal article, 2023)
      Many Internet of Things (IoT) applications can benefit from Social Web of Things (S-WoT) methods that enable knowledge discovery and help solving interoperability problems. The semantic modeling of S-WoT is the main emphasis ...

    • Solution of the Dirac equation for hydrogenlike systems exposed to intense electromagnetic pulses 

      Selstø, Sølve; Bengtsson, Jakob; Lindroth, Eva (Journal article; Peer reviewed, 2009)
      The time-dependent Dirac equation is solved numerically and compared to the corresponding prediction of the nonrelativistic Schrödinger equation for hydrogenlike systems exposed to intense laser pulses. It is found that ...

    • Solution of the time-dependent Schrödinger equation using uniform complex scaling 

      Bengtsson, Jakob; Lindroth, Eva; Selstø, Sølve (Journal article; Journal article; Peer reviewed, 2008)
      The formalism of complex rotation of the radial coordinate is studied in the context of time-dependent systems. The applicability of this method is discussed and illustrated with numerical examples involving atoms exposed ...

    • Solving stochastic nonlinear resource allocation problems using continuous learning automata 

      Yazidi, Anis; Hammer, Hugo Lewi (Applied Intelligence;November 2018, Volume 48, Issue 11, Journal article; Peer reviewed, 2018-06-23)
      This paper deals with the Stochastic Non-linear Fractional Equality Knapsack (NFEK) problem which is a fundamental resource allocation problem based on incomplete and noisy information [7, 8]. The NFEK problem arises ...

    • Solving Stochastic Point Location Problem in a Dynamic Environment with Weak Estimation 

      Abolpour Mofrad, Asieh; Yazidi, Anis; Hammer, Hugo Lewi (Chapter; Peer reviewed, 2017)
      The Stochastic Point Location (SPL) problem introduced by Oommen [7] can be summarized as searching for an unknown point in the interval under a possibly faulty feedback. The search is performed via a Learning Mechanism ...

    • Solving Stochastic Root-Finding with adaptive d-ary search 

      Yazidi, Anis; Oommen, John (Peer reviewed; Journal article, 2015)
      The most fundamental problem encountered in the field of stochastic optimization, is the Stochastic Root Finding (SRF) problem where the task is to locate an unknown point x for which g ( x )=0 for a given ...

    • Solving the Grand Challenges Together: A Brazil-Norway Approach to Teaching Collaborative Design and Prototyping of Assistive Technologies and Products for Independent Living 

      Sandnes, Frode Eika; Medola, Fausto Orsi; Berg, Arild; Rodrigues, Osmar Vicente; Mirtaheri, Peyman; Gjøvaag, Terje (Chapter; Peer reviewed, 2017)
      This paper describes the roadmap for a long term strategic internationalization project involving two key higher education institutions in Norway and Brazil. The project involves six different yet related ...

    • Solving the Lunar Lander Problem with Multiple Uncertainties using a Deep Q-Learning based Short-Term Memory Agent 

      Guttulsrud, Håkon; Sandnes, Mathias; Shrestha, Raju (Chapter, 2024)
      Efficient space travel requires intelligent and robust control mechanisms during spacecraft landing scenarios. Developing a control mechanism for a rocket trajectory problem is inherently complex. This paper introduces ...

    • SoMeMax - A Novel AI-driven Approach to Generate Artificial Social Media Content That Maximises User Engagement 

      Stave, Daniel Årrestad; Korneliussen, Hanne; Hjellup, H. Nøkkelby; Shrestha, Raju (Chapter; Peer reviewed; Conference object, 2023)
      Today, many artificial or virtual influencers roam social media platforms to maximise followers and offer commercial options for companies. This work focuses on developing artificial influencers using state-of-the-art ...

    • Spatio-temporal complexity of power-grid frequency fluctuations 

      Rydin Gorjao, Leonardo; Schäfer, Benjamin; Witthaut, Dirk; Beck, Christian (Peer reviewed; Journal article, 2021)
      Power-grid systems constitute one of the most complex man-made spatially extended structures. These operate with strict operational bounds to ensure synchrony across the grid. This is particularly relevant for power-grid ...

    • Speech Driven by Artificial Larynx: Potential Advancement Using Synthetic Pitch Contours 

      Jian, Hua-Li (Journal article; Peer reviewed, 2015-06-18)
      Despite a long history of development, the speech qualities achieved with artificial larynx devices are limited. This paper explores recent advances in prosodic speech processing and technology and assesses their potentials ...