Publications, Grants, and Software
Journal Articles
Halverson, T., & Hornof, A. J. (2011). A computational model of "active vision" for visual search in human-computer interaction. Human-Computer Interaction, 26(4), 285-314.
Zhang, Y., & Hornof, A. J. (2011). Mode-of-disparities error correction of eye tracking data. Behavior Research Methods, 43(3): 834-842.
Burke, M., Hornof, A., Nilsen, E., & Gorman, N. (2005). High-cost banner blindness: Ads increase perceived workload, hinder visual search, and are forgotten. ACM Transactions on Computer-Human Interaction, 12(4), 423-445.
Hornof, A. J. (2004). Cognitive strategies for the visual search of hierarchical computer displays. Human-Computer Interaction, 19(3), 183-223.
Hornof, A. J., & Halverson, T. (2002). Cleaning up systematic error in eye tracking data by using required fixation locations. Behavior Research Methods, Instruments, and Computers, 34(4), 592-604.
Hornof, A. J. (2001). Visual search and mouse pointing in labeled versus unlabeled two-dimensional visual hierarchies. ACM Transactions on Computer-Human Interaction, 8(3), 171-197.
Major Conference Papers
Hornof, A., Whitman, H., Sutherland, M., Gerendasy, S., McGrenere, J. (2017). Designing for the "universe of one": Personalized interactive media systems for people with the severe cognitive impairment associated with Rett syndrome. CHI 2017: Human Factors in Computing Systems, 2137-2148.
Hornof, A. J. (2014). The prospects for eye-controlled musical performance. Proceedings of NIME 2014: The International Conference on New Interfaces for Musical Expression, 461-466.
Kieras, D. E., & Hornof, A. J. (2014). Towards accurate and practical predictive models of active-vision-based visual search. Proceedings of ACM CHI 2014: Conference on Human Factors in Computing Systems., 3875-3884. MP4 video summary. [ ● Best Paper Award — Top 1% of all papers submitted. ● ]
Zhang, Y., & Hornof, A. J. (2014). Understanding multitasking through strategy exploration and individualized cognitive modeling. Proceedings of ACM CHI 2014: Conference on Human Factors in Computing Systems., 3885-3894. MP4 video summary. [ ● Best Paper Award — Top 1% of all papers submitted. ● ]
Zhang, Y., & Hornof, A. J. (2014). Easy post-hoc spatial recalibration of eye tracking data. Proceedings of ETRA 2014: Symposium on Eye Tracking Research and Applications, 95-98.
Zhang, Y., & Hornof, A. J. (2012). A discrete movement model for cursor tracking validated in the context of a dual-task experiment. Proceedings of the 56th Annual Meeting of the Human Factors and Ergonomics Society, 1000-1004.
Hornof, A. J., & Vessey, K. E. V. (2011). The sound of one eye clapping: Tapping an accurate rhythm with eye movements. Proceedings of the 55nd Annual Meeting of the Human Factors and Ergonomics Society, 1225-1229.
Hornof, A. J., & Zhang, Y. (2010). Task-constrained interleaving of perceptual and motor processes in a time-critical dual task as revealed through eye tracking. Proceedings of ICCM 2010: The 10th International Conference on Cognitive Modeling, Philadelphia, Pennsylvania, August 5-8, 97-102.
[ ● Siegel-Wolf Award for Best Applied Paper. ● ]
Hornof, A. J., Zhang, Y., & Halverson, T. (2010). Knowing where and when to look in a time-critical multimodal dual task. Proceedings of ACM CHI 2010: Conference on Human Factors in Computing Systems, New York: ACM, 2103-2112. QuickTime and MP4 video that accompanied paper. [ ● Honorable Mention Paper — Top 5% of all papers submitted. ● ]
Hornof, A. J. (2009). Designing with children with severe motor impairments. Proceedings of ACM CHI 2009: Conference on Human Factors in Computing Systems, New York: ACM, 2177-2180.
Hornof, A. J., Halverson, T., Isaacson, A., & Brown, E. (2008). Transforming object locations on a 2D visual display into cued locations in 3D auditory space. Proceedings of the 52nd Annual Meeting of the Human Factors and Ergonomics Society, 1170-1174.
Halverson, T., & Hornof, A. J. (2007). A minimal model for predicting visual search in human-computer interaction. Proceedings of ACM CHI 2007: Conference on Human Factors in Computing Systems, 431-434.
Hornof, A. J. & Cavender, A. (2005). EyeDraw: Enabling children with severe motor impairments to draw with their eyes. Proceedings of ACM CHI 2005: Conference on Human Factors in Computing Systems, New York: ACM, 161-170.
Kaur, I. & Hornof, A. J. (2005). A comparison of LSA, WordNet and PMI-IR for predicting user click behavior. Proceedings of ACM CHI 2005: Conference on Human Factors in Computing Systems, New York: ACM, 51-60.
Hornof, A. J., Cavender, A., & Hoselton, R. (2004). EyeDraw: A system for drawing pictures with eye movements. Proceedings of ASSETS 2004: The Sixth International ACM SIGACCESS Conference on Computers and Accessibility, Atlanta, Georgia, October 18-20, 86-93.
Halverson, T., & Hornof, A. J. (2004). Local density guides visual search: Sparse groups are first and faster. Proceedings of the 48th Annual Meeting of the Human Factors and Ergonomics Society. New Orleans, Louisiana, September 20-24, 1860-1864.
Halverson, T., & Hornof, A. J. (2004). Strategy shifts in mixed-density search. Proceedings of the 26th Annual Meeting of the Cognitive Science Society, Chicago, Illinois, August 4-8, 529-534.
Halverson, T. & Hornof, A. (2004). Explaining eye movements in the visual search of varying density layouts. Proceedings of the Sixth International Conference on Cognitive Modeling, Pittsburgh, Pennsylvania, July 30 - August 1. Full paper. 124-129.
Hornof, A., & Sato, L. (2004). EyeMusic: Making Music with the Eyes. Proceedings of the 2004 Conference on New Interfaces for Musical Expression (NIME04), Hamamatsu, Japan, June 3-5, 185-188.
Burke, M., Gorman, N., Nilsen, E., & Hornof, A. (2004). Banner ads hinder visual search and are forgotten. Extended Abstracts of ACM CHI 2004: Conference on Human Factors in Computing Systems, New York: ACM, 1139-1142.
Halverson, T., & Hornof, A. J. (2004). Link colors guide a search. Extended Abstracts of ACM CHI 2004: Conference on Human Factors in Computing Systems, New York: ACM, 1367-1370.
Hornof, A. J., Cavender, A., & Hoselton, R. (2004). EyeDraw: A system for drawing pictures with the eyes. Extended Abstracts of ACM CHI 2004: Conference on Human Factors in Computing Systems, New York: ACM, 1251-1254.
Hornof, A. J., & Halverson, T. (2003). Cognitive strategies and eye movements for searching hierarchical computer displays. ACM CHI 2003: Conference on Human Factors in Computing Systems, New York: ACM, 249-256.
Hornof, A. J., & Kieras, D. E. (1999). Cognitive modeling demonstrates how people use anticipated location knowledge of menu items. Proceedings of ACM CHI 99: Conference on Human Factors in Computing Systems, New York: ACM, 410-417.
Hornof, A. J., & Kieras, D. E. (1997). Cognitive modeling reveals menu search is both random and systematic. Proceedings of ACM CHI 97: Conference on Human Factors in Computing Systems, New York: ACM, 107-114.
Kieras, D. E., Wood, S. D., Abotel, K., & Hornof, A. (1995). GLEAN: A computer-based tool for rapid GOMS model usability evaluation of user interface designs. Proceedings of the ACM Symposium on User Interface Software and Technology, UIST '95, 91-100.
Other Publications and Presentations
Zhang, Y., & Hornof, A. J. (2013). Using model tracing and evolutionary algorithms to determine parameter settings for cognitive models from time series data such as visual scanpaths. In Proceedings of the 13th International Conference on Cognitive Modeling. Ottawa, Canada: Carleton University, pp. 433-438. Presented as a poster.
Hornof, A. J. (2008). Working with children with severe motor impairments as design partners. Invited presentation at the workshop on Designing for Children with Special Needs at Interaction Design and Children, 2008, Northwestern University, Evanston, IL.
Halverson, T. & Hornof, A. J. (2008). The effects of semantic grouping on visual search. Extended Abstracts of CHI 2008: Conference on Human Factors in Computing Systems, Florence, Italy, April 5-10, 2008. Presented as a poster. Published as a "Works in Progress", pp. 3471-3476.
Hornof, A. J., Rogers, T., & Halverson, T. (2007). EyeMusic: Performing live music and multimedia compositions with eye movements. Poster presented at NIME 2007: Conference on New Interfaces for Musical Expression. In proceedings on pp. 299-300.
Brock, D., McClimens, B., Hornof, A. J., & Halverson, T. (2006). Cognitive Models of the Effect of Audio Cueing on Attentional Shifts in a Complex Multimodal Dual-Display Dual-Task. Proceedings of the 28th Annual Meeting of the Cognitive Science Society, Vancouver, BC, July 26-29, 2006. Presented as a poster. Published as a six-page paper, 1044-1049.
Halverson, T. & Hornof, A. J. (2006). Towards a Flexible, Reusable Model for Predicting Eye Movements During Visual Search of Text. Proceedings of the 28th Annual Meeting of the Cognitive Science Society, Vancouver, BC, July 26-29, 2006. Presented as a poster. Published as a six-page paper, 1428-1433.
Hornof, A. & Halverson, T. (2003). Predicting cognitive strategies and eye movements in hierarchical visual search. In F. Detje, D. Dörner, & H. Schaub (Eds.) Proceedings of the Fifth International Conference on Cognitive Modeling. Bamberg, Germany: Universitas-Verlag Bamberg, 261-262. Presented as poster; published as a two-page summary.
Hornof, A. & Halverson, T. (2003). Predicting cognitive strategies and eye movements in hierarchical visual search. Abstract in Proceedings of the 25th Annual Meeting of the Cognitive Science Society. Presented as a poster; published digitally in the conference proceedings as a six-page paper.
"Cognitive strategies for visual search." ONR Attention, Perception and Data Visualization Workshop, George Mason University, 22-24 May, 2002.
Automatic Capture, Representation and Analysis of User Behavior. CHI 2002 Workshop.
Hornof, A. J. (July/August, 2001). Research alert: Visual search and mouse pointing in labeled versus unlabeled two-dimensional visual hierarchies. ACM interactions.
"Predictive Engineering Models of Interface Usability: Cognitive Modeling and Human-Computer Interaction," ACM Special Interest Group on Computer & Human Interaction (CHIFOO), March 21, 2001, Portland, Oregon.
"The low-level cognitive processes involved in the visual search of pull-down menus and computer screens, as revealed by cognitive modeling." CHI 98 Doctoral Consortium, April 18-21, 1998, Los Angeles, California. Extended abstract of Ph.D. dissertation in progress appears in CHI 98 Summary, New York: ACM.
Technical Reports
Vessey, K., & Hornof, A. J. (2013). Reviewing Nyan 2.0XT by Recreating the Burke et al. (2004) Banner Ad Study. Department of CIS Technical Report 2013-01, University of Oregon. Seventeen pages.
Hornof, A. J., & Vessey, K. E. V. (2011). The sound of one eye clapping: Tapping an accurate rhythm with eye movements. Department of CIS Technical Report CIS-TR-2011-01, University of Oregon. Four pages.
Zhang, Y., & Hornof, A. J. (2010). Using the mean shift algorithm to make post hoc improvements to the accuracy of eye tracking data based on probable fixation locations. Department of CIS Technical Report 2010-04, University of Oregon. Sixty-four pages.
Vessey, K., & Hornof, A. J. (2009). A pilot study using Tobii studio 1.3.22 to recreate the Burke et al. (2004) banner ad study. Department of CIS Technical Report 2010-05, University of Oregon. Seventeen pages.
Hornof, A., Rogers, T., Stolet, J., & Halverson, T. (2008). Bringing to Life the Musical Properties of the Eyes. Department of CIS Technical Report 08-05, University of Oregon. Ten pages.
Halverson, T., & Hornof, A. J. (2001). Issues in the design and development of experimental software for use with an eye tracking system. Department of CIS Technical Report 02-02, University of Oregon.
Burke, M. K. & Hornof, A. J. (2001). The effect of animated banner advertisements on a visual search task. University of Oregon, Department of CIS Technical Report 02-03, University of Oregon.
Ph.D. Dissertation
Hornof, A. J. (1999). Computational models of the perceptual, cognitive, and motor processes involved in the visual search of pull-down menus and computer screens. Doctoral dissertation in Computer Science and Engineering. The University of Michigan, Ann Arbor, Michigan. Advisor: David Kieras.
Software
LC Technologies Eyegaze System Ported to the Macintosh OS (.sit download)
VizFix--A tool for visualizing gaze fixations and other data from eye tracking experiments.