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Reducing Scanning Keyboard Input Errors with Extended Start Dwell-Time

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Advances in Usability, User Experience and Assistive Technology (AHFE 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 794))

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Abstract

Some individuals with reduced motor function rely on scanning keyboards to operate computers. A problem observed with scanning keyboards is that errors typically occur during the first group or first cell of a group. This paper proposes to reduce such errors by introducing longer dwell-times for the first element in scan sequences. The paper theoretically explores several designs and evaluates their effect on overall text entry performance.

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References

  1. Medola, F.O., Lanutti, J., Bentim, C.G., Sardella, A., Franchinni, A.E., Paschoarelli, L.C.: Experiences, problems and solutions in computer usage by subjects with tetraplegia. In: Marcus, A. (ed.) Design, User Experience, and Usability: Users and Interactions. DUXU 2015. LNCS, vol. 9187, pp 131–137. Springer, Cham (2015)

    Google Scholar 

  2. Polacek, O., Sporka, A.J., Slavik, P.: Text input for motor-impaired people. Univ. Access Inf. Soc. 16, 51–72 (2017)

    Article  Google Scholar 

  3. Francis, G., Johnson, E.: Speed–accuracy tradeoffs in specialized keyboards. Int. J. Hum. Comput. Stud. 69, 526–538 (2011)

    Article  Google Scholar 

  4. Sandnes, F.E., Jian, H.L.: Pair-wise variability index: evaluating the cognitive difficulty of using mobile text entry systems. In: International Conference on MobileHCI 2004. LNCS, vol. 3160, pp. 347–350. Springer, Heidelberg (2004)

    Google Scholar 

  5. Sandnes, F.E.: Human performance characteristics of three-finger chord sequences. Procedia Manuf. 3, 4228–4235 (2015)

    Article  Google Scholar 

  6. Whitney, G., Keith, S., Bühler, C., Hewer, S., Lhotska, L., Miesenberger, K., Sandnes, F.E., Stephanidis, C., Velasco, C.A.: Twenty five years of training and education in ICT design for all and assistive technology. Technol. Disabil. 3, 163–170 (2011)

    Google Scholar 

  7. Sandnes, F.E., Jian, H.L., Huang, Y.P., Huang, Y.M.: User interface design for public kiosks: an evaluation of the Taiwan high speed rail ticket vending machine. J. Inf. Sci. Eng. 26, 307–321 (2010)

    Google Scholar 

  8. Hagen, S., Sandnes, F.E.: Toward accessible self-service kiosks through intelligent user interfaces. Pers. Ubiquit. Comput. 14, 715–721 (2010)

    Article  Google Scholar 

  9. Hagen, S., Sandnes, F.E.: Visual scoping and personal space on shared tabletop surfaces. J. Ambient Intell. Humaniz. Comput. 3, 95–102 (2012)

    Article  Google Scholar 

  10. Sandnes, F.E., Herstad, J., Stangeland, A.M., Orsi Medola, F.: UbiWheel: a simple context-aware universal control concept for smart home appliances that encourages active living. In: Proceedings of Smartworld 2017, pp. 446–451. IEEE (2017)

    Google Scholar 

  11. Sandnes, F.E.: Understanding WCAG2.0 color contrast requirements through 3D color space visualization. Stud. Health Technol. Inform. 229, 366–375 (2016)

    Google Scholar 

  12. Sandnes, F.E., Zhao, A.: A contrast colour selection scheme for WCAG2. 0-compliant web designs based on HSV-half-planes. In: Proceedings of SMC 2015, pp. 1233–1237. IEEE (2015)

    Google Scholar 

  13. Sandnes, F.E., Zhao, A.: An interactive color picker that ensures WCAG2.0 compliant color contrast levels. Procedia-Comput. Sci. 67, 87–94 (2015)

    Article  Google Scholar 

  14. Eika, E.: Universally designed text on the web: towards readability criteria based on antipatterns. Stud. Health Technol. Inform. 229, 461–470 (2016)

    Google Scholar 

  15. Eika, E., Sandnes, F.E.: Assessing the reading level of web texts for WCAG2.0 compliance-can it be done automatically? In: Di Bucchianico, G., Kercher, P. (eds.) Advances in Design for Inclusion. Advances in Intelligent Systems and Computing, vol. 500, pp. 361–371. Springer, Cham (2016)

    Google Scholar 

  16. Eika, E., Sandnes, F.E.: Authoring WCAG2.0-compliant texts for the web through text readability visualization. In: Antona, M., Stephanidis, C. (eds.) UAHCI 2016. LNCS, vol. 9737, pp. 49–58. Springer, Cham (2016)

    Google Scholar 

  17. Sandnes, F.E.: Designing GUIs for low vision by simulating reduced visual acuity: reduced resolution versus shrinking. Stud. Health Technol. Inform. 217, 274–281 (2015)

    Google Scholar 

  18. Sandnes, F.E.: What do low-vision users really want from smart glasses? faces, text and perhaps no glasses at all. In: Miesenberger, K., Bühler, C., Penaz, P. (eds.) ICCHP 2016. LNCS, vol. 9758, pp. 187–194. Springer, Cham (2016)

    Google Scholar 

  19. Sandnes F.E., Eika, E.: Head-mounted augmented reality displays on the cheap: a DIY approach to sketching and prototyping low-vision assistive technologies. In: Antona, M., Stephanidis, C. (eds.) UAHCI 2017, LNCS, vol. 10278, pp. 168–186, Springer, Cham (2017)

    Google Scholar 

  20. Gomez, J.V., Sandnes, F.E.: RoboGuideDog: guiding blind users through physical environments with laser range scanners. Procedia Comput. Sci. 14, 218–225 (2012)

    Article  Google Scholar 

  21. Sandnes, F.E., Tan, T.B., Johansen, A., Sulic, E., Vesterhus, E., Iversen, E.R.: Making touch-based kiosks accessible to blind users through simple gestures. Univ. Access Inf. Soc. 11, 421–431 (2012)

    Article  Google Scholar 

  22. Lin, M.W., Cheng, Y.M., Yu, W., Sandnes, F.E.: Investigation into the feasibility of using tactons to provide navigation cues in pedestrian situations. In: Proceedings of the 20th Australasian Conference on Computer-Human Interaction: Designing for Habitus and Habitat, pp. 299–302. ACM (2008)

    Google Scholar 

  23. Sandnes, F.E., Lundh, M.V.: Calendars for individuals with cognitive disabilities: a comparison of table view and list view. In: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility, pp. 329–330. ACM (2015)

    Google Scholar 

  24. Berget, G., Mulvey, F., Sandnes, F.E.: Is visual content in textual search interfaces beneficial to dyslexic users? Int. J. Hum.-Comput. Stud. 92–93, 17–29 (2016)

    Article  Google Scholar 

  25. Berget, G., Sandnes, F.E.: Do autocomplete functions reduce the impact of dyslexia on information searching behaviour? A case of Google. J. Am. Soc. Inf. Sci. Technol. 67, 2320–2328 (2016)

    Article  Google Scholar 

  26. Berget, G., Sandnes, F.E.: Searching databases without query-building aids: implications for dyslexic users. Inf. Res. 20 (2015)

    Google Scholar 

  27. Bertolaccini, G., Sandnes, F., Paschoarelli, L., Medola, F.: A descriptive study on the influence of wheelchair design and movement trajectory on the upper limbs’ joint angles. In: International Conference on Applied Human Factors and Ergonomics, pp. 645–651. Springer, Cham (2017)

    Google Scholar 

  28. Medola, F.O., Busto, R.M., Marçal, Â.F., Achour Junior, A., Dourado, A.C.: The sport on quality of life of individuals with spinal cord injury: a case series. Revista Brasileira de Medicina do Esporte 17, 254–256 (2011)

    Article  Google Scholar 

  29. Medola, F.O., Elui, V.M.C., da Silva Santana, C., Fortulan, C.A.: Aspects of manual wheelchair configuration affecting mobility: a review. J. Phys. Ther. Sci. 26, 313–318 (2014)

    Article  Google Scholar 

  30. Lanutti, J.N., Medola, F.O., Gonçalves, D.D., da Silva, L.M., Nicholl, A.R., Paschoarelli, L.C.: The significance of manual wheelchairs: a comparative study on male and female users. Procedia Manuf. 3, 6079–6085 (2015)

    Article  Google Scholar 

  31. Medola, F.O., Purquerio, B.M., Elui, V.M., Fortulan, C.A.: Conceptual project of a servo-controlled power-assisted wheelchair. In: IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, pp. 450–454. IEEE (2014)

    Google Scholar 

  32. Lahr, G.J.G., Medola, F.O., Sandnes, F.E., Elui, V.M.C., Fortulan, C.A.: Servomotor assistance in the improvement of manual wheelchair mobility. Stud. Health Technol. Inf. 242, 786–792 (2017)

    Google Scholar 

  33. da Silva Bertolaccini, G., Nakajima, R.K., de Carvalho Filho, I.F.P., Paschoarelli, L.C., Medola, F.O.: The influence of seat height, trunk inclination and hip posture on the activity of the superior trapezius and longissimus. J. Phys. Ther. Sci. 28, 1602–1606 (2016)

    Article  Google Scholar 

  34. Medola, F.O., Silva, D.C., Fortulan, C.A., Elui, V.M.C., Paschoarelli, L.C.: The influence of handrim design on the contact forces on hands’ surface: a preliminary study. Int. J. Ind. Ergon. 44, 851–856 (2014)

    Article  Google Scholar 

  35. Medola, F.O., Fortulan, C.A., Purquerio, B.D.M., Elui, V.M.C.: A new design for an old concept of wheelchair pushrim. Disabil. Rehabil. Assist. Technol. 7, 234–241 (2012)

    Article  Google Scholar 

  36. Medola, F.O., Paschoarelli, L.C., Silv, D.C., Elui, V.M.C., Fortulan, A.: Pressure on hands during manual wheelchair propulsion: a comparative study with two types of handrim. In: European Seating Symposium, pp. 63–65 (2011)

    Google Scholar 

  37. Medola, F.O., Dao, P.V., Caspall, J.J., Sprigle, S.: Partitioning kinetic energy during freewheeling wheelchair maneuvers. IEEE Trans. Neural Syst. Rehabil. Eng. 22, 326–333 (2014)

    Article  Google Scholar 

  38. Sandnes, F.E.: Can spatial mnemonics accelerate the learning of text input chords? In: Proceedings of the Working Conference on Advanced Visual Interfaces, pp. 245–249. ACM (2006)

    Google Scholar 

  39. Sandnes, F.E., Huang, Y.P.: Chording with spatial mnemonics: automatic error correction for eyes-free text entry. J. Inf. Sci. Eng. 22, 1015–1031 (2006)

    Google Scholar 

  40. Sandnes, F.E., Huang, Y.P.: Chord level error correction for portable Braille devices. Electron. Lett. 42, 82–83 (2006)

    Article  Google Scholar 

  41. Sandnes, F.E., Medola, F.O.: Exploring russian tap-code text entry adaptions for users with reduced target hitting accuracy. In: Proceedings of the 7th International Conference on Software Development and Technologies for Enhancing Accessibility and Fighting Info-exclusion, pp. 33–38. ACM (2016)

    Google Scholar 

  42. Levine, S., Gauger, J., Bowers, L., Khan, K.: A comparison of Mouthstick and Morse code text inputs. Augment. Altern. Commun. 2, 51–55 (1986)

    Article  Google Scholar 

  43. Sandnes, F.E., Thorkildssen, H.W., Arvei, A., Buverad, J.O.: Techniques for fast and easy mobile text-entry with three-keys. In: Proceedings of the 37th Annual Hawaii International Conference on System Sciences. IEEE (2004)

    Google Scholar 

  44. Mackenzie, I.S., Felzer, T.: SAK: Scanning ambiguous keyboard for efficient one-key text entry. ACM Trans. Comput.-Hum. Interact. (TOCHI) 17(3), 11 (2010)

    Article  Google Scholar 

  45. Sandnes, F.E.: Reflective text entry: a simple low effort predictive input method based on flexible abbreviations. Procedia Comput. Sci. 67, 105–112 (2015)

    Article  Google Scholar 

  46. Sandnes, F.E.: Effects of common keyboard layouts on physical effort: Implications for kiosks and Internet banking. In: Sandnes, F.E., Lunde, M. Tollefsen, M., Hauge, A.M., Øverby, E., Brynn, R. (eds.) The proceedings of Unitech2010: International Conference on Universal Technologies, pp. 91–100. Tapir Academic Publishers, Norway (2010)

    Google Scholar 

  47. Chiapparino, C., Stasolla, F., de Pace, C., Lancioni, G.E.: A touch pad and a scanning keyboard emulator to facilitate writing by a woman with extensive motor disability. Life Span Disabil. 14, 45–54 (2011)

    Google Scholar 

  48. Felzer, T., Rinderknecht, S.: 3DScan: an environment control system supporting persons with severe motor impairments. In: Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility, pp. 213–214. ACM (2009)

    Google Scholar 

  49. Zhang, X., Fang, K., Francis, G.: How to optimize switch virtual keyboards to trade off speed and accuracy. Cognit. Res. Princ. Implic. 1, 6 (2016)

    Article  Google Scholar 

  50. Jones, P.E.: Virtual keyboard with scanning and augmented by prediction. In: Proceedings of the 2nd European Conference on Disability, Virtual Reality and Associated Technologies, pp. 45–51 (1998)

    Google Scholar 

  51. Sandnes, F.E., Medola, F.O.: Effects of Optimizing the scan-path on scanning key-boards with QWERTY-Layout for English text. Stud. Health Technol. Inf. 242, 930–938 (2017)

    Google Scholar 

  52. Higger, M., Moghadamfalahi, M., Quivira, F., Erdogmus, D.: Fast switch scanning keyboards: minimal expected query decision trees (2016). arXiv preprint arXiv:1606.02552

  53. Hamidi, F., Baljko, M.: Reverse-engineering scanning keyboards. In: International Conference on Computers for Handicapped Persons, pp. 315–322. Springer, Heidelberg (2012)

    Google Scholar 

  54. Baljko, M., Tam, A.: Indirect text entry using one or two keys. In Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility, pp. 18–25. ACM (2006)

    Google Scholar 

  55. Simpson, R.C., Mankowski, R., Koester, H.H.: Modeling one-switch row-column scanning with errors and error correction methods. Open Rehabil. J. 4, 1–12 (2011)

    Article  Google Scholar 

  56. Bhattacharya, S., Samanta, D., Basu, A.: Performance models for automatic evaluation of virtual scanning keyboards. IEEE Trans. Neural Syst. Rehabil. Eng. 16, 510–519 (2008)

    Article  Google Scholar 

  57. MacKenzie, I.S.: Modeling text input for single-switch scanning. In: International Conference on Computers for Handicapped Persons, pp. 423–430. Springer, Heidelberg (2012)

    Google Scholar 

  58. Sandnes, F.E., Aubert, A.: Bimanual text entry using game controllers: relying on users’ spatial familiarity with QWERTY. Interact. Comput. 19, 140–150 (2007)

    Article  Google Scholar 

  59. Sandnes, F.E.: Directional bias in scrolling tasks: a study of users’ scrolling behaviour using a mobile text-entry strategy. Behav. Inf. Technol. 27, 387–393 (2008)

    Article  Google Scholar 

  60. Sandnes, F.E.: Evaluating mobile text entry strategies with finite state automata. In: Proceedings of the 7th international conference on MobileHCI 2005, pp. 115–121. ACM (2005)

    Google Scholar 

  61. Sandnes, F.E., Sinnen, O.: A new strategy for multiprocessor scheduling of cyclic task graphs. Int. J. High Perform. Comput. Netw. 3, 62–71 (2005)

    Article  Google Scholar 

  62. Sandnes, F. E.: Scheduling Partially Ordered Events in a Randomised Framework: Empirical Results and Implications for Automatic Configuration Management. In: Proceedings of LISA, pp. 47–62. USENIX (2001)

    Google Scholar 

  63. Rebreyend, P., Sandnes, F.E., Megson, G.M.: Static multiprocessor task graph scheduling in the genetic paradigm: a comparison of genotype representations. Laboratoire de l’Informatique du Parallelisme, Research report no. 98–25. Ecole Normale Superieure de Lyon (1998)

    Google Scholar 

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Authors and Affiliations

  1. Faculty of Technology, Art and Design, Department of Computer Science, OsloMet–Oslo Metropolitan University, Oslo, Norway

    Frode Eika Sandnes & Evelyn Eika

  2. Westerdals Oslo School of Art, Communication and Technology, Oslo, Norway

    Frode Eika Sandnes

  3. UNESP-São Paulo State University, Bauru, Brazil

    Fausto Orsi Medola

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  1. Frode Eika Sandnes
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  2. Evelyn Eika
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  3. Fausto Orsi Medola
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Correspondence to Frode Eika Sandnes .

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Editors and Affiliations

  1. University of Central Florida, Orlando, FL, USA

    Tareq Z. Ahram

  2. Catholic University of Pernambuco, Boa Viagem, Pernambuco, Brazil

    Christianne Falcão

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Sandnes, F.E., Eika, E., Medola, F.O. (2019). Reducing Scanning Keyboard Input Errors with Extended Start Dwell-Time. In: Ahram, T., Falcão, C. (eds) Advances in Usability, User Experience and Assistive Technology. AHFE 2018. Advances in Intelligent Systems and Computing, vol 794. Springer, Cham. https://doi.org/10.1007/978-3-319-94947-5_79

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  • DOI: https://doi.org/10.1007/978-3-319-94947-5_79

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