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Eric N. Wiebe

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Publications by Eric N. Wiebe (bibliography)

2012

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Grafsgaard, Joseph F., Fulton, Robert M., Boyer, Kristy Elizabeth, Wiebe, Eric N. and Lester, James C. (2012): Multimodal analysis of the implicit affective channel in computer-mediated textual communication. In: Proceedings of the 2012 International Conference on Multimodal Interfaces 2012. pp. 145-152.

“Computer-mediated textual communication has become ubiquitous in recent years. Compared to face-to-face interactions, there is decreased bandwidth in affective information, yet studies show that interactions in this medium still produce rich and fulfilling affective outcomes. While overt communication (e.g., emoticons or explicit discussion of emotion) can explain some aspects of affect conveyed through textual dialogue, there may also be an underlying implicit affective channel through which participants perceive additional emotional information. To investigate this phenomenon, computer-mediated tutoring sessions were recorded with Kinect video and depth images and processed with novel tracking techniques for posture and hand-to-face gestures. Analyses demonstrated that tutors implicitly perceived students' focused attention, physical demand, and frustration. Additionally, bodily expressions of posture and gesture correlated with student cognitive-affective states that were perceived by tutors through the implicit affective channel. Finally, posture and gesture complement each other in multimodal predictive models of student cognitive-affective states, explaining greater variance than either modality alone. This approach of empirically studying the implicit affective channel may identify details of human behavior that can inform the design of future textual dialogue systems modeled on naturalistic interaction.”

1995

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Forsythe, Chris, Karwowski, Waldemar, Baba, Marietta, Wiebe, Eric N., Lahlou, Saadi and Ashby, M. Rodema (1995): Human Factors in Agile Manufacturing. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 538-542.

“The contributions of human factors to agile manufacturing are as varied as the numerous human components that constitute an industrial enterprise. As a framework for discussing some specific examples relevant to the elements of agility identified above, human factors contributions are categorized as follows: (1.) development of business practices; (2.) design of enabling technologies and (3.) management of the introduction and fielding of new technologies and business practices. The panel session will provide an introduction to these contributions, and an accounting of past and ongoing work.”

1994

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Wiebe, Eric N. (1994): Evaluation of Alternative Methods of Representing Three-Dimensional Objects on Computer Displays. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. pp. 1326-1330.

“Due to the increased use of 3D modeling software in the design and manufacture of products, careful evaluation needs to be made as to how the 3D model is represented on the computer display. The experiment's hypothesis is that both rate in which projections of a rotating object are presented and whether the object is rendered as a line drawing or shaded will effect the mental representation of the object. The experiment factorially crossed three levels of projection presentation rate with two levels of rendering (line drawing vs. shaded). All levels of both independent variables were between subjects. The subjects' score on a mental rotations test score was used as a covariant. The subjects each viewed 40 displays representing different rotating objects and identified the objects through a forced choice pair selection. RT and error rate were measured for each selection trial. Data on a total of 72 subjects was analyzed using the ANOVA procedure. The results of the experiment showed a significant main effect of the rate of presentation variable on RT. The results also showed a significant main effect of the rendering variable on error rate. No interaction was found between the two independent variables. The results indicate varying presentation rate can be an effective tool in allowing faster interpretations of an object. It is also recommended that the display technique be carefully matched to the complexity of the object being displayed and the capabilities of the computer being used to display it.”

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