Kari-Jouko Räihä
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Publications by Kari-Jouko Räihä (bibliography)
» 2009 «
Räihä, Kari-Jouko and Spakov, Oleg (2009): Disambiguating ninja cursors with eye gaze. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 1411-1414. Available online
Ninja cursors aim to speed up target selection on large or multiple monitors. Several cursors are displayed on the screen with one of them selected as the active cursor. Eye tracking is used to choose the active cursor. An experiment with 13 participants showed that multiple cursors speed up the selection over long distances, but not over short distances. Participants felt the technique was fastest with 4 cursors per monitor, but still preferred to have only 1 cursor per monitor for their own use.
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» 2008 «
Laukkanen, Joona, Isokoski, Poika and Räihä, Kari-Jouko (2008): The cone and the lazy bubble: two efficient alternatives between the point cursor and the bubble cursor. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 309-312. Available online
We evaluated two cursor designs in the continuum between the traditional point cursor and the bubble cursor by Grossman and Balakrishnan. The lazy bubble cursor expanded to envelop the closest target when the ratio of the distances to the closest and the second closest target was less than 1:2. In addition to this lazy behavior the cone cursor had a tail that stayed on the last enveloped target until the next target was enveloped. In an experiment with 18 participants we found that the bubble cursor was faster than our cursors that had smaller target activation areas but the difference remained very small. Of the bubble cursor variants the lazy bubble exhibited higher error rate than the other two. Thus, the winners on the objective metrics were the bubble cursor and the cone cursor. The lazy bubble cursor and the bubble cursor were preferred in subjective ratings.
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Liu, Ying and Räihä, Kari-Jouko (2008): RotaTxt: Chinese pinyin input with a rotator. In: Hofte, G. Henri ter, Mulder, Ingrid and Ruyter, Boris E. R. de (eds.) Proceedings of the 10th Conference on Human-Computer Interaction with Mobile Devices and Services - Mobile HCI 2008 September 2-5, 2008, Amsterdam, the Netherlands. pp. 225-233. Available online
Räihä, Kari-Jouko and Duchowski, Andrew T. (eds.) ETRA 2008 - Proceedings of the Eye Tracking Research and Application Symposium March 26-28, 2008, Savannah, Georgia, USA.
Sharmin, Selina, Spakov, Oleg, Räihä, Kari-Jouko and Jakobsen, Arnt Lykke (2008): Effects of time pressure and text complexity on translators' fixations. In: Räihä, Kari-Jouko and Duchowski, Andrew T. (eds.) ETRA 2008 - Proceedings of the Eye Tracking Research and Application Symposium March 26-28, 2008, Savannah, Georgia, USA. pp. 123-126. Available online
Tuisku, Outi, Majaranta, Päivi, Isokoski, Poika and Räihä, Kari-Jouko (2008): Now Dasher! Dash away!: longitudinal study of fast text entry by Eye Gaze. In: Räihä, Kari-Jouko and Duchowski, Andrew T. (eds.) ETRA 2008 - Proceedings of the Eye Tracking Research and Application Symposium March 26-28, 2008, Savannah, Georgia, USA. pp. 19-26. Available online
Spakov, Oleg and Räihä, Kari-Jouko (2008): KiEV: a tool for visualization of reading and writing processes in translation of text. In: Räihä, Kari-Jouko and Duchowski, Andrew T. (eds.) ETRA 2008 - Proceedings of the Eye Tracking Research and Application Symposium March 26-28, 2008, Savannah, Georgia, USA. pp. 107-110. Available online
Siirtola, Harri, Räihä, Kari-Jouko, Surakka, Veikko and Vanhala, Toni (2008): Flexible Method for Producing Static Visualizations of Log Data. In: IV 2008 - 12th International Conference on Information Visualisation 8-11 July, 2008, London, UK. pp. 127-132. Available online
» 2006 «
Majaranta, Päivi, MacKenzie, I. Scott, Aula, Anne and Räihä, Kari-Jouko (2006): Effects of feedback and dwell time on eye typing speed and accuracy. In Universal Access in the Information Society, 5 (2) pp. 199-208
Eye typing provides a means of communication that is especially useful for people with disabilities. However, most related research addresses technical issues in eye typing systems, and largely ignores design issues. This paper reports experiments studying the impact of auditory and visual feedback on user performance and experience. Results show that feedback impacts typing speed, accuracy, gaze behavior, and subjective experience. Also, the feedback should be matched with the dwell time. Short dwell times require simplified feedback to support the typing rhythm, whereas long dwell times allow extra information on the eye typing process. Both short and long dwell times benefit from combined visual and auditory feedback. Six guidelines for designing feedback for gaze-based text entry are provided.
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Räihä, Kari-Jouko and Duchowski, Andrew T. (eds.) ETRA 2006 - Proceedings of the Eye Tracking Research and Application Symposium March 27-29, 2006, San Diego, California, USA.
» 2004 «
Majaranta, Päivi, Aula, Anne and Räihä, Kari-Jouko (2004): Effects of feedback on eye typing with a short dwell time. In: Duchowski, Andrew T. and Vertegaal, Roel (eds.) ETRA 2004 - Proceedings of the Eye Tracking Research and Application Symposium March 22-24, 2004, San Antonio, Texas, USA. pp. 139-146. Available online
» 2002 «
Majaranta, Päivi and Räihä, Kari-Jouko (2002): Twenty years of eye typing: systems and design issues. In: Duchowski, Andrew T., Vertegaal, Roel and Senders, John W. (eds.) ETRA 2002 - Proceedings of the Eye Tracking Research and Application Symposium March 25-27, 2002, New Orleans, Louisiana, USA. pp. 15-22. Available online
» 2000 «
Hyrskykari, Aulikki, Majaranta, Päivi, Aaltonen, Antti and Räihä, Kari-Jouko (2000): Design issues of iDICT: a gaze-assisted translation aid. In: Duchowski, Andrew T. (ed.) ETRA 2000 - Proceedings of the Eye Tracking Research and Application Symposium November 6-8, 2000, Palm Beach Gardens, Florida, USA. pp. 9-14. Available online
» 1979 «
Räihä, Kari-Jouko and Zweben, Stuart H. (1979): An Optimal Insertion Algorithm for One-Sided Height-Balanced Binary Search Trees. In Communications of the ACM, 22 (9) pp. 508-512
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Mar 12th, 2010
Changes to this page (author)
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