Blar i utgivelsesdato Artikler, rapporter og annet (informatikk)

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    • Design Principles for Isolation Kernels 

      Kvalnes, Åge; Johansen, Dag; Valvåg, Steffen (Research report; Forskningsrapport, 2011)

    • Features of Mobile Diabetes Applications: Review of the Literature and Analysis of Current Applications Compared Against Evidence-Based Guidelines 

      Chomutare, Taridzo; Fernandez-Luque, Luis; Årsand, Eirik; Hartvigsen, Gunnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Background: Interest in mobile health (mHealth) applications for self-management of diabetes is growing. In July 2009, we found 60 diabetes applications on iTunes for iPhone; by February 2011 the number had increased by more than 400% to 260. Other mobile platforms reflect a similar trend. Despite the growth, research on both the design and the use of diabetes mHealth applications is scarce. ...

    • Search-based composition, streaming and playback of video archive content 

      Johansen, Dag; Halvorsen, Pål; Johansen, Håvard; Riiser, Haakon; Gurrin, Cathal; Olstad, Bjørn; Griwodz, Carsten; Kvalnes, Åge; Hurley, Joseph; Kupka, Tomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Locating content in existing video archives is both a time and bandwidth consuming process since users might have to download and manually watch large portions of superfluous videos. In this paper, we present two novel prototypes using an Internet based video composition and streaming system with a keyword-based search interface that collects, converts, analyses, indexes, and ranks video content. ...

    • Review of Extracting Information From the Social Web for Health Personalization 

      Fernandez-Luque, Luis; Karlsen, Randi; Bonander, Jason (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      In recent years the Web has come into its own as a social platform where health consumers are actively creating and consuming Web content. Moreover, as the Web matures, consumers are gaining access to personalized applications adapted to their health needs and interests. The creation of personalized Web applications relies on extracted information about the users and the content to personalize. The ...

    • NFC Prototype Bonanza 

      Holmstad, Øyvind; Kreutzer, Tor (Research report; Forskningsrapport, 2011)
      This report presents the results of the research conducted by Tor Kreutzer and Ø yvind Holmstad during the summer of 2011 at the University of Troms ø. The goal of the project was to gain practical experience with Near Field Communication (NFC) technology by exploring its properties through hands-on development of applications and services. To explore the applicability and limitations of NFC we ...

    • Standards for reporting randomized controlled trials in medical informatics: a systematic review of CONSORT adherence in RCTs on clinical decision support 

      Augestad, Knut Magne; Berntsen, Gro; Lassen, Kristoffer; Bellika, Johan Gustav; Wootton, Richard; Lindsetmo, Rolv-Ole (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-07-29)
      Introduction The Consolidated Standards for Reporting Trials (CONSORT) were published to standardize reporting and improve the quality of clinical trials. The objective of this study is to assess CONSORT adherence in randomized clinical trials (RCT) of disease specific clinical decision support (CDS).<p> <p>Methods A systematic search was conducted of the Medline, EMBASE, and Cochrane databases. ...

    • Experimental Fault-Tolerant Synchronization for Reliable Computation on Graphics Processors 

      Hagen, Tor-Magne Stien; Ha, Hoai Phuong; Anshus, Otto (Research report; Forskningsrapport, 2012)
      Graphics processors (GPUs) are emerging as a promising platform for highly parallel, compute-intensive, general-purpose computations, which usually need support for inter-process synchronization. Using the traditional lock-based synchronization (e.g. mutual exclusion) makes the computation vulnerable to faults caused by both scientists’ inexperience and hardware transient errors. It is notoriously ...

    • IMP: a multi-species functional genomics portal for integration, visualization and prediction of protein functions and networks 

      Wong, Aaron K.; Park, Christopher Y.; Greene, Casey S.; Bongo, Lars Ailo; Guan, Yuanfang; Troyanskaya, Olga (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Integrative multi-species prediction (IMP) is an interactive web server that enables molecular biologists to interpret experimental results and to generate hypotheses in the context of a large cross-organism compendium of functional predictions and networks. The system provides a framework for biologists to analyze their candidate gene sets in the context of functional networks, as they expand or ...

    • Muithu: Smaller Footprint, Potentially Larger Imprint 

      Johansen, Dag; Stenhaug, Magnus; Hansen, Roger Bruun Asp; Christensen, Agnar; Høgmo, Per-Mathias (Research report; Forskningsrapport, 2012)
      We describe our experience with the Muithu sports notational analysis system, a novel digital information system in the popular sports domain. The system integrates real-time coach notations with related video sequences, and is configured with small, off-the shelf and cheap components. Muithu requires little or no human post-processing, which is in strong contrast to state-of-the art resource-intensive ...

    • Pro-Anorexia and Pro-Recovery Photo Sharing: A Tale of Two Warring Tribes 

      Yom-Tov, Elad; Fernandez Luque, Luis; Weber, Ingmar; Crain, Steven P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      There is widespread use of the Internet to promote anorexia as a lifestyle choice. Pro-anorexia content can be harmful for people affected or at risk of having anorexia. That movement is actively engaged in sharing photos on social networks such as Flickr. Objective: To study the characteristics of the online communities engaged in disseminating content that encourages eating disorders (known as ...

    • Improving Diabetes Care for Young People With Type 1 Diabetes Through Visual Learning on Mobile Phones: Mixed-Methods Study 

      Frøisland, Dag Helge; Årsand, Eirik; Skårderud, Finn (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Background: Only 17% of Norwegian children and adolescents with diabetes achieve international treatment goals measured by glycated hemoglobin (HbA1c). Classic patient–physician consultations seem to be poorly adapted to young children. New strategies that are better attuned to young people to improve support of adolescents’ self-management of diabetes need to be tested and evaluated. Objective: ...

    • HealthTrust: A Social Network Approach for Retrieving Online Health Videos 

      Fernandez-Luque, Luis; Karlsen, Randi; Melton, Genevieve B (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Background: Social media are becoming mainstream in the health domain. Despite the large volume of accurate and trustworthy health information available on social media platforms, finding good-quality health information can be difficult. Misleading health information can often be popular (eg, antivaccination videos) and therefore highly rated by general search engines. We believe that community ...

    • Mobile Phone-Based Pattern Recognition and Data Analysis for Patients with Type 1 Diabetes 

      Skrøvseth, Stein Olav; Årsand, Eirik; Godtliebsen, F.; Hartvigsen, Gunnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Persons with type 1 diabetes who use electronic self-help tools, most commonly blood glucose meters, record a large amount of data about their personal condition. Mobile phones are powerful and ubiquitous computers that have a potential for data analysis, and the purpose of this study is to explore how self-gathered data can help users improve their blood glucose management. Thirty patients with ...

    • Physicians Interrupted by Mobile Devices in Hospitals: Understanding the Interaction Between Devices, Roles, and Duties 

      Solvoll, Terje; Scholl, Jeremiah; Hartvigsen, Gunnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      A common denominator of modern hospitals is a variety of communication problems. In particular, interruptions from mobile communication devices are a cause of great concern for many physicians. Objective: To characterize how interruptions from mobile devices disturb physicians in their daily work. The gathered knowledge will be subsequently used as input for the design and development of a ...

    • Telehealth at UC Davis—A 20-Year Experience 

      Nesbitt, Thomas S; Dharmar, Madan; Katz-Bell, Jana; Hartvigsen, Gunnar; Marcin, James P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Telehealth at the University of California Health System began as a telefetal monitoring connection with a rural hospital in 1992 and evolved to become the Center for Health and Technology (CHT) in 2000. The Center supports the vision of the University of California Davis (UC Davis) Health System—a healthier world through bold innovation. The CHT focuses on the four pillars of the academic ...

    • An Evaluation Framework for Defining the Contributions of Telestration in Surgical Telementoring 

      Budrionis, Andrius; Augestad, Knut Magne; Patel, Hitendra R.H.; Bellika, Johan Gustav (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background: An increasing quantity of research in the domain of telemedicine show a growing popularity and acceptance of care over distance systems among both clinicians and patients. We focus on telementoring solutions, developed for providing remote guidance to less experienced surgeons. Telestration is often regarded as an extra functionality of some telementoring systems. However, we advocate ...

    • Usage and perceptions of a mobile self-management application for people with type 2 diabetes: qualitative study of a five-month trial 

      Tatara, Naoe; Årsand, Eirik; Bratteteig, Tone; Hartvigsen, Gunnar (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)

    • DeltaTree: A Practical Locality-aware Concurrent Search Tree 

      Umar, Ibrahim; Anshus, Otto; Ha, Hoai Phuong (Research report; Forskningsrapport, 2013)
      As other fundamental programming abstractions in energy-e cient computing, search trees are expected to support both high parallelism and data locality. However, existing highly-concurrent search trees such as red-black trees and AVL trees do not consider data locality while existing locality-aware search trees such as those based on the van Emde Boas layout (vEB-based trees), poorly support ...

    • The Nornir run-time system for parallel programs using Kahn process networks on multi-core machines-a flexible alternative to MapReduce 

      Vrba, Zeljko; Halvorsen, Pål; Griwodz, Carsten; Beskow, Paul; Espeland, Håvard; Johansen, Dag (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Even though shared-memory concurrency is a paradigm frequently used for developing parallel applications on small- and middle-sized machines, experience has shown that it is hard to use. This is largely caused by synchronization primitives which are low-level, inherently non-deterministic, and, consequently, non-intuitive to use. In this paper, we present the Nornir run-time system. Nornir is ...

    • Functional Knowledge Transfer for High-accuracy Prediction of Under-studied Biological Processes 

      Park, Christopher Y.; Wong, Aaron K.; Greene, Casey S.; Rowland, Jessica; Guan, Yuanfang; Bongo, Lars Ailo; Burdine, Rebecca D.; Troyanskaya, Olga (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      A key challenge in genetics is identifying the functional roles of genes in pathways. Numerous functional genomics techniques (e.g. machine learning) that predict protein function have been developed to address this question. These methods generally build from existing annotations of genes to pathways and thus are often unable to identify additional genes participating in processes that are not ...