Intelligent Virtual Agents: 9th International Conference, IVA 2009 Amsterdam, The Netherlands, September 14-16, 2009 Proceedings

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 -