• BRIDGE: Administering Small Anonymous Longitudinal HCI Experiments with Snowball-type Sampling 

      Sandnes, Frode Eika (Lecture Notes in Computer Science;Volume 12935, Conference object, 2021-08-26)
      When following participants across multiple sessions one needs a way to link the different session records while protecting the participants’ privacy. Privacy is required by recent legislation such as the General Data ...
    • Calendars for Individuals with Cognitive Disabilities: A Comparison of Table View and List View 

      Sandnes, Frode Eika; Lundh, Maud Veronica Gine (Peer reviewed; Chapter, 2015)
      Calendars can be important memory aids for individuals with cognitive disabilities. This study compared the effect of the popular two-dimensional table calendar view and the simpler list view. A controlled experiment was ...
    • Can Automatic Abbreviation Expansion Improve the Text Entry Rates of Norwegian Text with Compound Words? 

      Sandnes, Frode Eika (DSAI 2018 Proceedings of the 8th International Conference on Software Development and Technologies for Enhancing Accessibility and Fighting Info-exclusion;, Chapter; Peer reviewed, 2018-06-20)
      Text entry can be challenging for users with reduced motor function. Prefix-based prediction has been successfully applied for text in English and other languages. However, prefix-based text prediction does not work optimally ...
    • Can we identify prominent scholars using ChatGPT? 

      Sandnes, Frode Eika (Scientometrics;, Peer reviewed; Journal article, 2023)
      It may be tempting to learn about scholars using ChatGPT. To validate ChatGPT for this task a small experiment was conducted based on the 50 most cited researchers at the author’s university. The results show that ChatGPT ...
    • CANDIDATE: A tool for generating anonymous participant-linking IDs in multi-session studies 

      Sandnes, Frode Eika (PLOS ONE;16 (12): e0260569, Peer reviewed; Journal article, 2021-12-15)
      Background: To ensure the privacy of participants is an ethical and legal obligation for researchers. Yet, achieving anonymity can be technically difficult. When observing participants over time one needs mechanisms to ...
    • Can’t You Tell I am a Human? A Comparison of Common Text and Image CAPTCHAs Using a Low-Fidelity Methodology 

      Eriksen, Hannah Marie Maurstad; Hoel, Lars; Jetteberg, Caroline Sofie; Leiknes, Amalie Christine; Sandnes, Frode Eika (Chapter; Conference object, 2023)
      Many websites employ CAPTCHAs to limit web robot traffic. Al- though CAPTCHA challenges may improve security they come at the cost of reduced usability and accessibility. This study set out to explore users’ performance ...
    • Car steering in racing games: similar performance with joysticks and keyboards 

      Astrup, Birk Knut; Danielsen, Viktor; Grønvold, Kristian Ludvig; Hals, Alexander William Ingvarsson; Klophmann, Andreas; Sandnes, Frode Eika (International Conference Proceeding Series (ICPS);PETRA '19: Proceedings of the 12th ACM International Conference on PErvasive Technologies Related to Assistive Environments, Conference object, 2019-06)
      Many gamers use keyboards for playing computer games. Yet it is a commonly held belief that the control of the game is better with a more dedicated input device such as a joystick. This study set out to explore the effect ...
    • Colour Contrast Based On WCAG 2.0 

      Zhao, Anqi (Master thesis, 2015)
      Insufficient contrast between text and the background is a common problem on the web meanwhile very few researchers study the insights of the designers’ design thinking process, how they choose the specific colours from ...
    • Communicating Panoramic 360 Degree Immersed Experiences: A Simple Technique for Sketching in 3D 

      Sandnes, Frode Eika (Peer reviewed; Journal article, 2016)
      Immersive t hree - dimensional environments can give test users a valu- able first - person experience of design ideas . Trained designers can quickly create mock - ups using three - dimensional modelling ...
    • A Comparative Study of Text Entry Performance of Low-Profile versus High-Profile Keyboards 

      Arntzen, Camilla; Kopperud, Jan F. E.; Horn, Thomas; Sandnes, Frode Eika (PETRA '20: The 13th PErvasive Technologies Related to Assistive Environments Conference;Article No.: 76, Conference object, 2020-06)
      Users’ perceptions on what makes a good computer keyboard varies. Laptop computers are often equipped with low-profile keyboards for improved mobility, while desktop computers often are equipped with traditional high-profile ...
    • A Comparative Study of Three Sudoku Input Methods for Touch Displays 

      Sommervold, Aslak Burheim; Øvergaard, Benjamin Nils; Nysether, Eskil; Nur, Mohamed Yusuf; Sandnes, Frode Eika (Lecture Notes in Computer Science;volume 12188, Conference object, 2020-07-10)
      Sudoku is a popular recreational game which is claimed to have positive health effects. It can be played using paper or electronically using computers. Only very few studies have explored Sudoku interaction methods. We ...
    • A Comparison of Form Navigation with Tabbing and Pointing 

      Ferner, Bernt; Gåsøy, Adrian; Nicolaysen, Martin Walberg; Sandnes, Frode Eika (Lecture Notes in Computer Science;, Chapter; Peer reviewed; Conference object; Journal article, 2023)
      The form is a widely used metaphor in information gathering. Users typically navigate between form elements using a keyboard or a pointing device. This study set out to empirically compare tabbing and pointing in form ...
    • A Comparison of Multiple Selections Using Multiple Checkbox Selections and List Boxes 

      Leithe, Wasana; Sandnes, Frode Eika (Communications in Computer and Information Science;Volume 1499, Conference object, 2021-11-06)
      Website forms are commonly used for collecting information from users. Users choose one or more alternatives from a list. However, data input can be time-consuming. We therefore set out to explore which multiple selection ...
    • A comparison of three Potato peeler designs 

      Drejer, Åshild Bøe; Enstad, Truls; Fog, Erik R. M.; Viken, Thor Oskar F.; Medola, Fausto Orsi; Sandnes, Frode Eika (Advances in Intelligent Systems and Computing;volume 1269, Conference object, 2021-08-30)
      This study set out to compare the effectiveness and efficiency of three common potato peeler designs, and whether there were any differences related to gender in terms of use. An experiment was designed involving a timed ...
    • A computer supported memory aid for copying prescription parameters into medical equipment based on linguistic phrases 

      Sandnes, Frode Eika; Huang, Yo-Ping (Proceedings of System, Man and Cybernetics Conference SMC;2013, Chapter; Peer reviewed, 2013)
      Manually operated medical equipment, including drug infusion pumps, are often subject to input errors. Human operators copy data from a prescription into the relevant form field on the equipment panels. This process is ...
    • A Configurable Photo Browser Framework for Large Image Collections 

      Sandnes, Frode Eika (Lecture Notes in Computer Science = Lecture notes in artificial intelligence;6761, Journal article; Peer reviewed, 2011)
      Image collections are growing at an exponential rate due to the wide availability of inexpensive digital cameras and storage. Current browsers organize photos mostly chronologically, or according to manual tags. For ...
    • Consent notices are obstructing my view”: Viewing sticky elements on responsive websites under the magnifying glass 

      Sandnes, Frode Eika (Peer reviewed; Journal article, 2023)
      The practice of using consent notices on websites has received much criticism and attention among researchers. Much of the research has addressed unethical aspects of consent notices while less attention has been devoted ...
    • "Consent notices are obstructing my view”: Viewing sticky elements on responsive websites under the magnifying glass 

      Sandnes, Frode Eika (Peer reviewed; Journal article, 2023)
      The practice of using consent notices on websites has received much criticism and attention among researchers. Much of the research has addressed unethical aspects of consent notices while less attention has been devoted ...
    • A contrast colour selection scheme for WCAG2.0-compliant web designs based on HSV-half-planes 

      Sandnes, Frode Eika; Zhao, Anqi (Chapter, 2015)
      Abstract—Sufficient colour contrast between text and background is necessary for the text to be readable. WCAG2.0 defines contrast guidelines that ensure web pages can be read by people with a visual acuity of as low as ...
    • Country Selection on Web Forms: A Comparison of Dropdown Menus, Radio Buttons and Text Field with Autocomplete 

      Jensen, Emil Thorstensen; Hansen, Martin; Eika, Evelyn; Sandnes, Frode Eika (International Conference on Ubiquitous Information Management and Communication (IMCOM); 2020 14th International Conference on Ubiquitous Information Management and Communication (IMCOM), Conference object, 2020-02-20)
      Many forms on the web include obligatory country fields. Usually country form-fields are implemented using a long drop-down menu. This preliminary study set out to investigate whether the typical country drop-down menu is ...