Blar i ODA Open Digital Archive på forfatter "Sandnes, Frode Eika"
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Effects of graph embellishments on the perception of system states in mobile monitoring tasks
Sandnes, Frode Eika; Dyrgrav, Kjetil (Lecture Notes in Computer Science;8683, Journal article; Peer reviewed, 2014-09-18)Monitoring of critical systems such as large server parks require suitable visualization tools that draw the attention to essential aspects of system state to ensure continuous operation. Moreover, administration is ... -
Effects of Optimizing the Scan-Path on Scanning Keyboards with QWERTY-Layout for English Text
Sandnes, Frode Eika; Medola, Fausto Orsi (Journal article; Peer reviewed, 2017)Scanning keyboards can be essential tools for individuals with reduced motor function. However, most research addresses layout optimization. Learning new layouts is time-consuming. This study explores the familiar QWERTY ... -
An efficient particle swarm optimizer with application to Man-Day project scheduling problems
Chen, Ruey-Maw; Sandnes, Frode Eika (Mathematical problems in engineering;, Journal article; Peer reviewed, 2014-05-06)The multimode resource-constrained project scheduling problem (MRCPSP) has been confirmed to be an NP-hard problem. Particle swarm optimization (PSO) has been efficiently applied to the search for near optimal solutions ... -
An Energy Efficient Localization Strategy for Outdoor Objects based on Intelligent Light-Intensity Sampling
Sandnes, Frode Eika (Lecture Notes in Computer Science;6406, Journal article; Peer reviewed, 2010-10-05)A simple and low cost strategy for implementing pervasive objects that identify and track their own geographical location is proposed. The strategy, which is not reliant on any GIS infrastructure such as GPS, is realized ... -
Enhanced Learning of Jazz Chords with a Projector Based Piano Keyboard Augmentation
Sandnes, Frode Eika; Eika, Evelyn (Lecture Notes in Artificial Intelligence;vol 11937, Conference object, 2019)Learning jazz piano is considered technically difficult. Most people cannot afford private piano tuition and there are many freely available video tutorials on the Internet. This study identified a set of challenging topics ... -
Equal Pay for Knowledge Workers in Academia: An Unrealistic Proposition
Sandnes, Frode Eika (Palgrave Debates in Business and Management;, Chapter; Peer reviewed, 2021-12-10)This chapter argues for unequal pay in the cultural context of Norwegian academia. Academia is an interesting case to study, as knowledge workers are often idealistically driven rather than through pay. Contrary to the ... -
An error tolerant memory aid for reduced cognitive load in number copying tasks
Sandnes, Frode Eika (Lecture Notes in Computer Science;8010, Journal article; Peer reviewed, 2013-08)Number copying tasks are still common despite increased digitalization of services. Number copying tasks are cognitively and visually demanding, errors are easily introduced and the process is often perceived as laborious. ... -
Evaluation of orthosis rapid prototyping during the design process: Analysis of verification models
Ferrari, Ana Lya Moya; Piculo dos Santos, Aline Darc; Bertolaccini, Guilherme da Silva; Medola, Fausto Orsi; Sandnes, Frode Eika (Advances in Intelligent Systems and Computing;975, Chapter; Peer reviewed, 2020)hysical prototypes allow the testing of ideas quickly with models that look similar to the final product. Rapid Prototyping (RP) based on additive or subtractive technologies allow trial usability tests to avoid errors and ... -
Everyone onboard? Participation ratios as a metric for research activity assessments within young universities
Sandnes, Frode Eika (Scientometrics;126, pages 6105–6113 (2021), Peer reviewed; Journal article, 2021-06-05)Research productivity metrics designed for international and national comparison of institutions may be uncritically adopted for research assessments, especially within young universities with short research traditions. ... -
Evolutionary optimization algorithms for sunlight-based positioning sensor networks
Pardeiro, Jose; Gomez, Javier V.; Brunete, Alberto; Sandnes, Frode Eika (International Journal of Distributed Sensor Networks;Article ID 564072, Journal article; Peer reviewed, 2014)The sunlight intensity-based global positioning system (SGPS) is able to geolocate outdoor objects by means of the sunlight intensity detection. This paper presents the integration of SGPS into a sensor network in order ... -
Experiences using three app prototyping tools with different levels of fidelity from a product design student’s perspective
Figliolia, Amanda Coelho; Sandnes, Frode Eika; Medola, Fausto Orsi (Lecture Notes in Computer Science;12555, Conference object, 2020-11-18)Prototyping has become a widely embraced technique in different design fields to facilitate early user involvement to ensure that the end-product meets the users’ needs. Each design field has its tools and traditions for ... -
Experiences with RFID-Based Interactive Learning in Museums
Huang, Yo-Ping; Chang, Yueh-Tsun; Sandnes, Frode Eika (International Journal of Autonomous and Adaptive Communications Systems;3 (1), Journal article; Peer reviewed, 2010)Tourism plays an important role in the economies of many countries. Tourism can secure employment, foreign exchange earnings, investment and regional development. To attract more tourists and local visitors, many stakeholders ... -
Exploration of computational thinking based on bebras performance in webduino programming by high school students
Chen, Jian-Ming; Wu, Ting-Ting; Sandnes, Frode Eika (Lecture Notes in Computer Science;Volume 11003; Innovative technologies and learning, Journal article; Peer reviewed, 2018-09-06)The 12-year Basic Education Curriculum Guidelines by the Ministry of Education in Taiwan includes learning performances related to computational thinking and programming languages in technology courses. The students will ... -
Exploring Circular Hough Transforms for Detecting Hand Feature Points in Noisy Images from Ghost-Circle Patterns
Sandnes, Frode Eika (Chapter, 2021-03-15)Several applications involve the automatic analysis of hand images such as biometry, digit-ratio measurements, and gesture recognition. A key problem common to these applications is the separation of hands from the background. ... -
Exploring learning behavior transformation patterns in an AR English system: A study of gender differences
Huang, Yu-Che; Wu, Ting-Ting; Huang, Yueh-Ming; Sandnes, Frode Eika (Lecture Notes in Computer Science;Volume 11003; Innovative technologies and learning, Journal article; Peer reviewed, 2018-09-06)The aim of this research is to explore learners' learning behavior differences in a customized augmented reality (AR) English learning system (CARELS) by analyzing the learners' behavioral history. The results show that ... -
Exploring Russian Tap-Code Text Entry Adaptions for Users with Reduced Target Hitting Accuracy
Sandnes, Frode Eika; Orsi Medola, Fausto (Chapter; Peer reviewed, 2016)Text is still the dominant form of human-computer-human communication. Users with certain motor or visual impairments may be unable to use certain text entry interfaces such as the small virtual keyboards on mobile phones ... -
Exploring the Interactivity Issues of the Stereoscopic 3D Systems for Design Education
Chen, Li-Chieh; Cheng, Yun-Maw; Chu, Po-Ying; Sandnes, Frode Eika (Lecture Notes in Computer Science;9177, Journal article; Peer reviewed, 2015-07-18)Stereoscopic 3D displays have been used by some research groups to present learning contents for education. However, in the highly interactive situations, the intertwined depth cues may result in symptoms that hamper the ... -
Exploring the Usability of the LCH Color Model for Web Designers
Sandnes, Frode Eika (Lecture Notes in Computer Science;, Chapter; Peer reviewed; Conference object; Journal article, 2023)Although the LCH color models have been around for many years, it has just recently been included in web specifications and is currently being implemented by browser vendors. Several voices argue that the LCH color model ... -
Exploring the User Experience of an AI-based Smartphone Navigation Assistant for People with Visual Impairments
Kuriakose, Bineeth; Shrestha, Raju; Sandnes, Frode Eika (Chapter; Conference object, 2023)Advancements in artificial intelligence (AI), computer vision, and smartphone technology have spurred the development of naviga- tion assistants aiming to improve the independent mobility experi- ence of people with visual ... -
Exploring Time Visualization on Tiny Displays for Low Vision Users
Sandnes, Frode Eika (Chapter; Peer reviewed; Conference object, 2024)There have been few advancements in how time is visualized on modern devices despite the technical opportunities such devices offer. For low vision users small form-factor devices, such as smartwatches, pose few practical ...