An experimental investigation of gaze behavior modeling in virtual reality

2022-11
Esmer, Elif
The purpose of this study is to investigate if gaze behavior modeling on a robot avatar makes any difference in the engagement of human interlocutors. To that end, visual interaction patterns and impressions of participants during a one-on-one active conversation setting in the form of a mock-up job interview with an avatar agent have been analyzed. Experiments were conducted through eye-tracking methodology, questionnaires, and open-ended post-experimental evaluations. A robot avatar as an artificial agent programmed with pre-recorded speech and pre-planned gaze behavior, based on human gaze patterns, took the role of the human resource manager, in other words, the interviewer. The eye-tracking data of the participants, namely interviewees, were collected and analyzed to investigate whether the human-like gaze behavior of the artificial agent had any effect on the gaze allocation of the human interlocutors. Results of the questionnaires and the TF-IDF analysis of the post-experimental evaluations were inspected to detect reflections of participants’ gaze behavior and further patterns for the perception of the avatar.

Suggestions

Investigation of classroom management skills by using eye-tracking technology
Çoşkun, Atakan; Çağıltay, Kürşat; Department of Computer Education and Instructional Technology (2019)
This study investigates how a wearable eye tracker can be employed to assess and improve the visual attention of the faculty members in a higher education institution. Two experienced faculty members took part in the study. Both of them have been lecturing for more than ten years at the university, so they are experienced teachers. A wearable eye tracker was employed to assess and improve the participants’ visual attention in relation to classroom management skills. Besides, eye-tracking data were supported...
Important factors in mobile robot user interface design
Sekmen, A; Goldman, S; Koku, Ahmet Buğra; Zein-Sabatto, S; Wilkes, M (2001-07-25)
In this study, four factors are considered to be important in the interactions between a mobile robot and a human. These factors are robot location, user's prior knowledge about the robot's environment, spatial reasoning ability of the user, and user interfaces. The first objective of this study is to determine if providing a user interface component showing the relative position of the robot with respect to the user results in any improvement. The second objective is to have an overall evaluation of the us...
AN APPROACH FOR EXTENDING PROMETHEE TO REFLECT CHOICE BEHAVIOUR OF THE DECISION MAKER
Karasakal, Esra; Bozkurt, Ahmet (2019-08-01)
In this study, an approach based on PROMETHEE is developed to correctly reflect the choice behavior of the decision maker that is not explained by the utility theory. The prospect theory argues that losses have higher impact than gains. We integrate the prospect theory into PROMETHEE through defining new preference functions. The proposed approach is behaviorally realistic and tolerates some degree of intransitivities in the preferences of the decision maker. For determining the criteria weights, we utilize...
An Information Theoretic Approach to Classify Cognitive States Using fMRI
Onal, Itir; Ozay, Mete; Firat, Orhan; GİLLAM, İLKE; Yarman Vural, Fatoş Tunay (2013-11-13)
In this study, an information theoretic approach is proposed to model brain connectivity during a cognitive processing task, measured by functional Magnetic Resonance Imaging (fMRI). For this purpose, a local mesh of varying size is formed around each voxel. The arc weights of each mesh are estimated using a linear regression model by minimizing the squared error. Then, the optimal mesh size for each sample, that represents the information distribution in the brain, is estimated by minimizing various inform...
A relational perspective of institutional work
Topal, Çağrı (Cambridge University Press (CUP), 2015-07-01)
This study develops a relational model of institutional work. The past research implies that the nature of relationships between individual actors actually shapes the nature of institutional work the actors engage in. However, the research falls short of an explicit, systematic analysis of different relationships between the actors and their work implications. This study basically argues that the actors' power positions, which might be dominant or subordinate in relation to those of other actors, and their ...
Citation Formats
E. Esmer, “An experimental investigation of gaze behavior modeling in virtual reality,” M.S. - Master of Science, Middle East Technical University, 2022.