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MIT Press
Embodied Conversational Agents / Edition 1

Embodied Conversational Agents / Edition 1


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This book describes research in all aspects of the design, implementation, and evaluation of embodied conversational agents as well as details of specific working systems.

Embodied conversational agents are computer-generated cartoonlike characters that demonstrate many of the same properties as humans in face-to-face conversation, including the ability to produce and respond to verbal and nonverbal communication. They constitute a type of (a) multimodal interface where the modalities are those natural to human conversation: speech, facial displays, hand gestures, and body stance; (b) software agent, insofar as they represent the computer in an interaction with a human or represent their human users in a computational environment (as avatars, for example); and (c) dialogue system where both verbal and nonverbal devices advance and regulate the dialogue between the user and the computer. With an embodied conversational agent, the visual dimension of interacting with an animated character on a screen plays an intrinsic role. Not just pretty pictures, the graphics display visual features of conversation in the same way that the face and hands do in face-to-face conversation among humans. This book describes research in all aspects of the design, implementation, and evaluation of embodied conversational agents as well as details of specific working systems. Many of the chapters are written by multidisciplinary teams of psychologists, linguists, computer scientists, artists, and researchers in interface design. The authors include Elisabeth Andre, Norm Badler, Gene Ball, Justine Cassell, Elizabeth Churchill, James Lester, Dominic Massaro, Cliff Nass, Sharon Oviatt, Isabella Poggi, Jeff Rickel, and Greg Sanders.

Product Details

ISBN-13: 9780262032780
Publisher: MIT Press
Publication date: 03/27/2000
Edition description: New Edition
Pages: 438
Product dimensions: 7.20(w) x 9.10(h) x 1.20(d)

About the Author

Justine Cassell is Associate Dean of the School of Computer Science at Carnegie Mellon University.

Elizabeth F. Churchill is a Principal Research Scientist at Yahoo! Research in Santa Clara, CA.

Table of Contents

I Introduction
1 Nudge Nudge Wink Wink: Elements of FacetoFace Conversation for
Embodied Conversational Agents
Justine Cassell
II Systems
2 Human Conversation as a System Framework: Designing Embodied
Conversational Agents
Justine Cassell, Tim Bickmore, Lee Campbell, Hannes
Vilhjálmsson, and Hao Yan

3 "May I Help You?": Designing Embodied Conversational Agent
Elizabeth F. Churchill, Linda Cook, Peter Hodgson, Scott
Prevost, and Joseph W. Sullivan

4 TaskOriented Collaboration with Embodied Agents in Virtual
Jeff Rickel and W. Lewis Johnson
5 Deictic and Emotive Communication in Animated Pedagogical Agents
James C. Lester, Stuart G. Towns, Charles B. Callaway, Jennifer
L. Voerman, and Patrick J. FitzGerald

6 Performative Facial Expressions in Animated Faces
Isabella Poggi and Catherine Pelachaud
7 Emotion and Personality in a Conversational Agent
Gene Ball and Jack Bresse
8 The Automated Design of Believable Dialogues for Animated
Presentation Teams
Elisabeth André, Thomas Rist, Susanne van Mulken, Martin
Klesen, and Stephen Baldes

9 Parameterized Action Representation for Virtual Human Agents
Norman I. Badler, Rama Bindiganavale, Jan Allbeck, William
Schuler, Liwei Zhao, and Martha Palmer

III Evaluation
10 Developing and Evaluating Conversational Agents
Dominic W. Massaro, Michael M. Cohen, Jonas Beskow, and Ronald
A. Cole

11 Designing and Evaluating Conversational Interfaces with
Animated Characters
Sharon Oviatt and Bridget Adams
12 Measurement and Evaluation ofEmbodied Conversational Agents
Gregory A. Sanders and Jean Scholtz
13 Truth Is Beauty: Researching Embodied Conversational Agents
Clifford Nass, Katherine Isbister, and EunJu Lee

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