2026-09-19T00:28:23Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/458812022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Trevor J. Darrell and David Demirdjian.
Wang, Sy Bor, 1976-
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2009-06-30T16:31:28Z
2009-06-30T16:31:28Z
2008
2008
http://hdl.handle.net/1721.1/45881
320238793
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.
Includes bibliographical references (p. 129-135).
Automatic detection of communication errors in conversational systems typically rely only on acoustic cues. However, perceptual studies have indicated that speakers do exhibit visual communication error cues passively during the system's conversational turn. In this thesis, we introduce novel algorithms for face and body gesture recognition and present the first automatic system for detecting communication errors using facial expressions during the system's turn. This is useful as it detects communication problems before the user speaks a reply. To detect communication problems accurately and efficiently we develop novel extensions to hidden-state discriminative methods. We also present results that show when human subjects become aware that the conversational system is capable of receiving visual input, they become more communicative visually yet naturally.
by Sy Bor Wang.
Ph.D.
135 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Communication error detection using facial expressions
Thesis
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Publication
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