Intelligent Virtual Agents: 9th International Conference, IVA 2009 Amsterdam, The Netherlands, September 14-16, 2009 Proceedings (Lecture Notes in Computer Science, 5773)

This book constitutes the refereed proceedings of the 9th International Conference on Intelligent Virtual Agents, IVA 2009, held in Amsterdam, The Netherlands, in September 2009. The 19 revised full papers and 30 revised short papers presented together with 35 poster papers, three keynote talks, and 7 GALA papers were carefully reviewed and selected from 104 submissions. The papers are organized in topical sections on personality and memory, gesture and bodily behavior, evaluation, facial expression and gaze, culture, affect and empathy, agents in virtual worlds and games, tools and motion capture, and speech and dialogue. Front Matter....Pages - Endowing Virtual Characters with Expressive Conversational Skills....Pages 1-2 Intelligent Expression-Based Character Agent Systems....Pages 3-4 Past and Future Challenges in Creating Emotionally-Engaging Real-Time Digital Actors in Videogames....Pages 5-5 Engagement vs. Deceit: Virtual Humans with Human Autobiographies....Pages 6-19 A Socially-Aware Memory for Companion Agents....Pages 20-26 A Model of Personality and Emotional Traits....Pages 27-33 BDI-Based Development of Virtual Characters with a Theory of Mind....Pages 34-41 How Do Place and Objects Combine? “What-Where” Memory for Human-Like Agents....Pages 42-48 EXSTASIS – An Extended Status Model for Social Interactions....Pages 49-55 Authoring Behaviour for Characters in Games Reusing Abstracted Plan Traces....Pages 56-62 Modeling Peripersonal Action Space for Virtual Humans Using Touch and Proprioception....Pages 63-75 GNetIc – Using Bayesian Decision Networks for Iconic Gesture Generation....Pages 76-89 A Probabilistic Model of Motor Resonance for Embodied Gesture Perception....Pages 90-103 A Groovy Virtual Drumming Agent....Pages 104-117 Motion Synthesis Using Style-Editable Inverse Kinematics....Pages 118-124 Methodologies for the User Evaluation of the Motion of Virtual Humans....Pages 125-131 A Study into Preferred Explanations of Virtual Agent Behavior....Pages 132-145 Evaluating Adaptive Feedback in an Educational Computer Game....Pages 146-158 Media Equation Revisited: Do Users Show Polite Reactions towards an Embodied Agent?....Pages 159-165 The Lessons Learned in Developing Multi-user Attentive Quiz Agents....Pages 166-173 On-Site Evaluation of the Interactive COHIBIT Museum Exhibit....Pages 174-180 Evaluating an Algorithm for the Generation of Multimodal Referring Expressions in a Virtual World: A Pilot Study....Pages 181-187 Expression of Emotions Using Wrinkles, Blushing, Sweating and Tears....Pages 188-200 Impact of Expressive Wrinkles on Perception of a Virtual Character’s Facial Expressions of Emotions....Pages 201-214 Real-Time Crying Simulation....Pages 215-228 Breaking the Ice in Human-Agent Communication: Eye-Gaze Based Initiation of Contact with an Embodied Conversational Agent....Pages 229-242 An Approach for Creating and Blending Synthetic Facial Expressions of Emotion....Pages 243-249 Animating Idle Gaze in Public Places....Pages 250-256 Virtual Agents and 3D Virtual Worlds for Preserving and Simulating Cultures....Pages 257-271 One for All or One for One? The Influence of Cultural Dimensions in Virtual Agents’ Behaviour....Pages 272-286 Combining Facial and Postural Expressions of Emotions in a Virtual Character....Pages 287-300 Expression of Moral Emotions in Cooperating Agents....Pages 301-307 Evaluating Emotive Character Animations Created with Procedural Animation....Pages 308-315 Modeling Emotional Expressions as Sequences of Behaviors....Pages 316-322 I Feel What You Feel: Empathy and Placebo Mechanisms for Autonomous Virtual Humans....Pages 323-329 Predicting User Psychological Characteristics from Interactions with Empathetic Virtual Agents....Pages 330-336 When Human Coders (and Machines) Disagree on the Meaning of Facial Affect in Spontaneous Videos....Pages 337-343 Spontaneous Avatar Behavior for Human Territoriality....Pages 344-357 Tree Paths: A New Model for Steering Behaviors....Pages 358-371 A Virtual Tour Guide for Virtual Worlds....Pages 372-378 Design and Implementation of a Virtual Salesclerk....Pages 379-385 Duality of Actor and Character Goals in Virtual Drama....Pages 386-392 EMBR – A Realtime Animation Engine for Interactive Embodied Agents....Pages 393-404 Augmenting Gesture Animation with Motion Capture Data to Provide Full-Body Engagement....Pages 405-417 ION Framework – A Simulation Environment for Worlds with Virtual Agents....Pages 418-424 DTask and LiteBody: Open Source, Standards-Based Tools for Building Web-Deployed Embodied Conversational Agents....Pages 425-431 A Combined Semantic and Motion Capture Database for Real-Time Sign Language Synthesis....Pages 432-438 Mediating Performance through Virtual Agents....Pages 439-445 Teaching Computers to Conduct Spoken Interviews: Breaking the Realtime Barrier with Learning....Pages 446-459 Should Agents Speak Like, um, Humans? The Use of Conversational Fillers by Virtual Agents....Pages 460-466 Turn Management or Impression Management?....Pages 467-473 Human-Centered Distributed Conversational Modeling: Efficient Modeling of Robust Virtual Human Conversations....Pages 474-481 Issues in Dynamic Generation of Sign Language Utterances for a Web 2.0 Virtual Signer....Pages 482-483 Towards More Human-Like Episodic Memory for More Human-Like Agents....Pages 484-485 RealActor: Character Animation and Multimodal Behavior Realization System....Pages 486-487 Locomotion Animation by Using Riding Motion....Pages 488-489 Automated Generation of Emotive Virtual Humans....Pages 490-491 Little Mozart: Establishing Long Term Relationships with (Virtual) Companions....Pages 492-493 Real-Time Backchannel Selection for ECAs According to User’s Level of Interest....Pages 494-495 Virtual Autonomous Agents in an Informed Environment for Risk Prevention....Pages 496-497 An Immersive Approach to Evaluating Role Play....Pages 498-499 At the Virtual Frontier: Introducing Gunslinger, a Multi-Character, Mixed-Reality, Story-Driven Experience....Pages 500-501 Designing an Educational Game Facilitating Children’s Understanding of the Development of Social Relationships Using IVAs with Social Group Dynamics....Pages 502-503 Real-Time Rendering of Skin Changes Caused by Emotions....Pages 504-505 Extensions and Applications of Pogamut 3 Platform....Pages 506-507 Interactants’ Most Intimate Self-disclosure in Interactions with Virtual Humans....Pages 508-510 Evaluation of Novice and Expert Interpersonal Interaction Skills with a Virtual Patient....Pages 511-512 Voice Feed-Backing for Video Game Players by Real-Time Sequential Emotion Estimation from Facial Expression....Pages 513-514 RMRSBot – Using Linguistic Information to Enrich a Chatbot....Pages 515-516 Cultural Differences in Using Facial Parts as Cues to Recognize Emotions in Avatars....Pages 517-518 Adaptive Mind Agent....Pages 519-520 Study on Sensitivity to ECA Behavior Parameters....Pages 521-522 Influence of Music and Sounds in an Agent-Based Storytelling Environment....Pages 523-524 Widening the Evaluation Net....Pages 525-526 Are ECAs More Persuasive than Textual Messages?....Pages 527-528 Adapting a Virtual Agent to Users’ Vocabulary and Needs....Pages 529-530 Information State Based Multimodal Dialogue Management: Estimating Conversational Engagement from Gaze Information....Pages 531-532 Synthetic Characters with Personality and Emotion....Pages 533-534 Modelling and Implementing Irrational and Subconscious Interpersonal and Intra-personal Processes....Pages 535-536 A Method to Detect an Atmosphere of “Involvement, Enjoyment, and/or Excitement” in Multi-user Interaction....Pages 537-538 Want to Know How to Play the Game? Ask the ORACLE!....Pages 539-540 Varying Personality in Spoken Dialogue with a Virtual Human....Pages 541-542 Agent-Assisted Navigation for Virtual Worlds....Pages 543-544 A Real-Time Transfer and Adaptive Learning Approach for Game Agents in a Layered Architecture....Pages 545-546 Intelligent Tutoring Games with Agent Modeling....Pages 547-548 The Impact of Different Embodied Agent-Feedback on Users ́ Behavior....Pages 549-551 Web-Based Evaluation of Talking Heads: How Valid Is It?....Pages 552-553 Gérard....Pages 554-555 Method for Custom Facial Animation and Lip-Sync in an Unsupported Environment, Second Life TM ....Pages 556-557 Spectators, a Joy to Watch....Pages 558-559 IVAN – Intelligent Interactive Virtual Agent Narrators....Pages 560-561 CREACTOR – An Authoring Framework for Virtual Actors....Pages 562-563 The Multi-modal Rock-Paper-Scissors Game....Pages 564-565 A Gesture Analysis and Modeling Tool for Interactive Embodied Agents....Pages 566-568 Back Matter....Pages - Welcome To The Proceedings Of The 9th International Conference On Intelligent Virtual Agents, Held September 14–16, 2009 In Amsterdam, The Netherlands. Intelligent Virtual Agents (ivas) Are Interactive Characters That Exhibit Hum- Like Qualities And Communicate With Humans Or With Each Other Using Natural Human Modalities Such As Speech And Gesture. They Are Capable Of Real-time Perception, Cognition And Action, Allowing Them To Participate In A Dynamic Physical And Social Environment. Iva Is An Interdisciplinary Annual Conference And The Main Forum For P- Senting Research On Modeling, Developing And Evaluating Ivas With A Focus On Communicative Abilities And Social Behavior. The Development Of Ivas Requires Expertise In Multimodal Interaction And Several Ai ?elds Such As Cognitive M- Eling, Planning, Vision And Natural Language Processing. Computational Models Are Typically Based On Experimental Studies And Theories Of Human–human And Human–robot Interaction; Conversely, Iva Technology May Provide Interesting Lessons For These ?elds. The Realization Of Engaging Ivas Is A Challenging Task, So Reusable Modules And Tools Are Of Great Value. The ?elds Of Application Range From Robot Assistants, Social Simulation And Tutoring To Games And Artistic - Ploration.