Publication statistics

Pub. period:1991-2009
Pub. count:15
Number of co-authors:19



Co-authors

Number of publications with 3 favourite co-authors:

Panayiotis Zaphiris:5
Sri Kurniawan:4
Joseph H. Goldberg:3

 

 

Productive colleagues

R. Darin Ellis's 3 most productive colleagues in number of publications:

Panayiotis Zaphiri..:29
Sri Kurniawan:28
Joseph H. Goldberg:19
 
 
 
May 23

Knowledge is commonly socially constructed, through collaborative efforts towards shared objectives or by dialogues and challenges brought about by different persons' perspectives.

-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")

 
 

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R. Darin Ellis

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Publications by R. Darin Ellis (bibliography)

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2009
 
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Chintamani, Keshav, Cao, Alex, Ellis, R. Darin, Tan, Chin-An and Pandya, Abhilash K. (2009): Systematic Tele-operation with Augmented Reality Path Planned Navigation Cues in Cluttered Environments. In: Proceedings of the Human Factors and Ergonomics Society 53rd Annual Meeting 2009. pp. 81-85.

A novel method of providing human operators with Augmented Reality (AR) cues for collision-free navigation of robot arms in cluttered environments is described. The cues are graphic objects that aid the operator to rotate and translate the end-effector of the robot along AR collision-free paths pre-computed by a probabilistic path planner. Manual control of robot arms is a common mode of tele-manipulation on the International Space Station (ISS). Limited depth perception of the remote robot's 3D worksite can result in collisions with severe consequences. This paper combines the qualities of a planning algorithm to search for ideal paths, and the benefits of augmented reality for enhanced visualization. Presenting spatial path information to the user in an intuitive manner results in collision-free robot navigation along with performance repeatability. We present findings from the implementation of such a system with human operators and show that the system is beneficial.

© All rights reserved Chintamani et al. and/or their publisher

2007
 
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Nawab, Aditya, Chintamani, Keshav, Ellis, R. Darin, Auner, Gregory and Pandya, Abhilash (2007): Joystick mapped Augmented Reality Cues for End-Effector controlled Tele-operated Robots. In: Sherman, William R., Lin, Ming C. and Steed, Anthony (eds.) IEEE Virtual Reality Conference, VR 2007 10-14 March, 2007, Charlotte, NC, USA. pp. 263-266.

2005
 
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Zaphiris, Panayiotis, Kurniawan, Sri and Ellis, R. Darin (2005): Web and aging: challenges and opportunities. In Universal Access in the Information Society, 4 (1) pp. 1-2.

2003
 
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Kurniawan, H., Zaphiris, Panayiotis and Ellis, R. Darin (2003): Age-Related Differences in Subjective Ratings of Hierarchical Information. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 857-861.

 
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Zaphiris, Panayiotis, Kurniawan, H. and Ellis, R. Darin (2003): Mathematical Formulation of Age Related Differences in Mouse Movement Tasks. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 917-924.

2002
 
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Zaphiris, Panayiotis, Kurniawan, Sri and Ellis, R. Darin (2002): Age Related Differences and the Depth vs. Breadth Tradeoff in Hierarchical Online Information Systems. In: Carbonell, Noelle and Stephanidis, Constantine (eds.) Proceedings of the 7th ERCIM Workshop on User Interfaces for All October 23-25, 2002, Paris, France. pp. 23-42.

We report the results of a study investigating the age related differences as they relate to the depth versus breadth tradeoff in hierarchical online information systems. Different stimulus of various depth and breadth combinations and expandable or non-expandable structure were used. Participants from two age groups (aged 36 years old and younger or 57 years old and older) took part in this study. Overall, shallow hierarchies were preferred to deep hierarchies. Seniors were slower but did not make more errors than their younger counterparts when browsing the different treatments.

© All rights reserved Zaphiris et al. and/or Springer Verlag

 
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Kurniawan, Sri, Ellis, R. Darin and Allaire, J. C. (2002): The impact of Web self-efficacy, age, and Web experience on bookmark manipulation. In Universal Access in the Information Society, 1 (3) pp. 207-216.

This paper presents a study that examines the impact of age, Web experience, and Web self-efficacy across the adult life span on users' bookmark management behaviors. It was hypothesized that Web self-efficacy would mediate the effect of age and Web experience on bookmark manipulation. Six hundred users, sampled from the Project 2000 and 7th WWW User survey data, were used to examine this model. Using structural equation modeling techniques, it was found that the effect of age on bookmark manipulation was fully mediated by Web self-efficacy. However, the effect of Web experience was not fully mitigated by Web self-efficacy.

© All rights reserved Kurniawan et al. and/or Springer Verlag

2001
 
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Kurniawan, Sri Hastuti, Zaphiris, Panayiotis and Ellis, R. Darin (2001): Involving seniors in designing information architecture for the web. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 496-500.

2000
 
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Ellis, R. Darin and Kurniawan, Sri (2000): Increasing the Usability of Online Information for Older Users: A Case Study in Participatory Design. In International Journal of Human-Computer Interaction, 12 (2) pp. 263-276.

This article describes one of the first documented participatory design (PD) efforts specifically aimed at older users. The goal of the project was to make an existing World Wide Web (WWW) site more user-friendly for older users, specifically in terms of display format issues. A PD team was assembled from a group of community-dwelling older adults and developers from a university research lab. After the developers established the trust and confidence of the participants and developed a conceptual user model (based on a survey and previous literature), the PD team evaluated the original design. Prototypes were iteratively developed and tested by the PD team to improve problems found in the original design. Specific design improvements and general design guidelines for older WWW users are discussed.

© All rights reserved Ellis and Kurniawan and/or Lawrence Erlbaum Associates

1997
 
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Jasper, J. E., Ellis, R. Darin, Jankowski, T. B. and Nagarajan, R. (1997): Using Cooperative Design to Introduce ORDBMS-Driven Intranet Applications to Collaborating Social Service Agencies. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 97-100.

1995
 
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Ellis, R. Darin and Goldberg, Joseph H. (1995): Training Older Workers in Industry. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 1289-1293.

The work force of the near future will contain both a larger number and percentage of workers over the age of 55. Many of these older workers will re-enter the full-time work force in new areas or will transition into pools of contingent workers. Recent changes in labor law will also help keep older workers in the work place longer. The combination of these factors creates a situation where understanding the training and retraining needs of older workers is critical for continued productivity improvements. This paper summarizes the general state of current knowledge on training older workers, focusing on visual inspection and computer system usage. Generalizable aspects of training programs which have been successful are then considered, followed by identification of the areas in which research is most lacking.

© All rights reserved Ellis and Goldberg and/or Human Factors Society

1994
 
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Hess, Stephen M., Detweiler, Mark C. and Ellis, R. Darin (1994): The Effects of Display Layout on Monitoring and Updating System States. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. pp. 1336-1340.

Information-display issues are described in the context of a complex memory-updating task similar to Yntema's (1963). Subjects performed the updating task with two types of graphic interfaces. In one condition, the interface provided invariant spatial information which could be used to support task performance; in the second condition, the same information was presented in a single spatial location. The results suggest that 1) the mapping effect (one-to-many vs. many-to-one) found by Yntema did not occur when the response sets being updated were composed of the same response alternatives; 2) the type of screen layout used to support the updating task had a large impact on both accuracy and time to respond; and 3) the type of screen layout used interacted with the task's cognitive demands, including length of lag between an update and a response, and the number of variables being monitored. These results suggest that the design of information displays requires consideration of the abstract representational requirements of the task being supported.

© All rights reserved Hess et al. and/or Human Factors Society

1993
 
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Ellis, R. Darin and Kotani, Kentaro (1993): Modelling Age Differences in Isometric Elbow Flexion Using Hill's Three-Element Visco-Elastic Model. In: Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting 1993. pp. 202-205.

A visco-elastic model of the mechanical properties of muscle was used to describe age-differences in the buildup of force in isometric elbow flexion. Given information from the literature on age-related physiological changes, such as decreasing connective-tissue elasticity, one would expect changes in the mechanical properties of skeletal muscle and their related model parameters. Force vs. time curves were obtained for 7 young (aged 21-27) and 7 old (aged 69-83) female subject. There were significant age group differences in steady-state force level and the best fitting model parameters. In particular, the viscous damping element of the model plays a large role in describing the increased time to reach steady-state force levels in the older subject group. Implications of this research include incorporating parameter differences into more complex models, such as crash impact models.

© All rights reserved Ellis and Kotani and/or Human Factors Society

1992
 
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Ellis, R. Darin and Goldberg, Joseph H. (1992): Introductory Human Factors Engineering Courses: What is Currently Taught. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 556-560.

Course syllabi were requested from 43 U.S. undergraduate engineering programs to assess the structure and content of introductory Human Factors Engineering courses. Such information is valuable for new faculty and those who want to redesign their courses. Educators in industry also must constantly evaluate their courses to ensure their material is current. Syllabi were received from 27 of the programs. Factors considered were textbooks, credits, ABET credit categories, grading, and TA usage. Course topics were analyzed by frequency of appearance across the courses. The most popular topics were vision and hearing-related, displays, anthropometry, and workspace evaluation and design. Less popular topics, included liability, technical writing, shiftwork, and occupational stress.

© All rights reserved Ellis and Goldberg and/or Human Factors Society

1991
 
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Goldberg, Joseph H. and Ellis, R. Darin (1991): Human Factors Evaluation for High Volume Visual Inspection. In: Proceedings of the Human Factors Society 35th Annual Meeting 1991. pp. 776-780.

 
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Page maintainer: The Editorial Team
URL: http://www.interaction-design.org/references/authors/r__darin_ellis.html

Publication statistics

Pub. period:1991-2009
Pub. count:15
Number of co-authors:19



Co-authors

Number of publications with 3 favourite co-authors:

Panayiotis Zaphiris:5
Sri Kurniawan:4
Joseph H. Goldberg:3

 

 

Productive colleagues

R. Darin Ellis's 3 most productive colleagues in number of publications:

Panayiotis Zaphiri..:29
Sri Kurniawan:28
Joseph H. Goldberg:19
 
 
 
May 23

Knowledge is commonly socially constructed, through collaborative efforts towards shared objectives or by dialogues and challenges brought about by different persons' perspectives.

-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Help us help you!