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Justine Cassell. Nakano, Yukiko I., 1963- Massachusetts Institute of Technology. Dept. of Architecture. Program In Media Arts and Sciences. Program in Media Arts and Sciences (Massachusetts Institute of Technology) 2011-04-25T15:48:04Z 2011-04-25T15:48:04Z 2002 2002 http://hdl.handle.net/1721.1/62369 51998639 Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2002. Includes bibliographical references (leaves 79-82). In face-to-face conversation, speakers present non-verbal signals collateral with verbal information. Nodding and gazing at a speaker are known to provide positive feedback from listeners, which contributes to establishing common ground (a process called grounding). However, previous theories and computational models of grounding were mainly concerned with verbal grounding acts, and there have not been enough discussion about how nonverbal behaviors are used in the process of grounding. This thesis first compares face-to-face conversation to conversation without co-presence, revealing how nonverbal behaviors are used in the process of grounding in human communication. Results of the analysis show that, in face-to-face communication, non-verbal behaviors are changing during an utterance and a typical transition pattern of non-verbal behaviors is also different depending on the type of verbal act. Then, the implementation of grounding functionality onto an Embodied Conversational Agent is presented. The dialogue state updating mechanism in the Dialogue Manager accesses non-verbal information conveyed by a user and judges the groundedness of presented materials based on the results of empirical study. by Yukiko I. Nakano. S.M. 82 leaves eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Architecture. Program In Media Arts and Sciences. Non-verbal signals for grounding in embodied conversational agent Thesis application/pdf Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="580aa12e-483c-4027-a285-b3dbe2548d9d"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Non-verbal signals for grounding in embodied conversational agent</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2002</PublicationDate> <Authors> <Author> <DisplayName>Nakano, Yukiko I., 1963-</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Architecture. Program In Media Arts and Sciences.</Keyword> <Abstract>In face-to-face conversation, speakers present non-verbal signals collateral with verbal information. Nodding and gazing at a speaker are known to provide positive feedback from listeners, which contributes to establishing common ground (a process called grounding). However, previous theories and computational models of grounding were mainly concerned with verbal grounding acts, and there have not been enough discussion about how nonverbal behaviors are used in the process of grounding. This thesis first compares face-to-face conversation to conversation without co-presence, revealing how nonverbal behaviors are used in the process of grounding in human communication. Results of the analysis show that, in face-to-face communication, non-verbal behaviors are changing during an utterance and a typical transition pattern of non-verbal behaviors is also different depending on the type of verbal act. Then, the implementation of grounding functionality onto an Embodied Conversational Agent is presented. The dialogue state updating mechanism in the Dialogue Manager accesses non-verbal information conveyed by a user and judges the groundedness of presented materials based on the results of empirical study.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>