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The Entertainment Industry Meets Simulation: The Challenge of the Holodeck. Bill Swartout Institute for Creative Technologies University of Southern California. The ICT is intended to serve as a nexus between the simulation and entertainment communities. Institute For Creative Technologies.
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The Entertainment Industry Meets Simulation:The Challenge of the Holodeck Bill Swartout Institute for Creative TechnologiesUniversity of Southern California
The ICT is intended to serve as a nexus between the simulation and entertainment communities
Institute For Creative Technologies Tech Show Biz
How can we best simulate reality? • Two approaches • Military simulation • Entertainment industry
Simulating Reality:Two Approaches Military Simulation • Literal: try to include as much reality in simulation as possible • Homogeneous Entertainment Industry • Goal-directed: create effect of real experience by selectively focusing on elements (real and unreal) • Hybrid Approach: combine disparate elements
What we don’t want… Movie clip
New Research Areas • Speech Recognition • Natural Language Understanding • Dialogue Management • Natural Language Generation • Speech Synthesis • Gesture Generation • Perception • Personality Variation • Sound Spatialization • Interactive Story Structure
Integration Raises New Challenges: Natural LanguageProject Leaders: Ed Hovy (ISI), Kevin Knight (ISI), David Traum (ISI), Shri Narayanan (IMSC) • Speech recognition: Noisy environment • Multimodal: Face To Face (speech+gesture), Radio • Multiple Interactors (Sgt, medic, squads,…) • Messages tailored for multiple addressees/overhearers • Emotion
“Squad Leaders listen up!” Challenge: Speech SynthesisProject Leaders: Lewis Johnson (ISI), Shri Narayanan (IMSC) • Most speech synthesis sounds unnatural • Even the best have limited expression (AT&T NextGen) • No command voice • Use hybrid approach: • Multiple synthesizers withdifferent “voices” • Command voice Text toSpeechSynthesis • Use pre-recorded library for highly emotional speech
Challenge: Modeling EmotionsProject Leaders: Jon Gratch (ICT), Stacy Marsella (ISI)
Challenge: Modeling EmotionsProject Leaders: Jon Gratch (ICT), Stacy Marsella (ISI) Movie clip
Challenge: Modeling EmotionsProject Leaders: Jon Gratch (ICT), Stacy Marsella (ISI) • Problem addressed: • Virtual humans need emotions to be believable & realistic • Approach: • Characters have beliefs, goals, utilities • Construct plans • Events evaluated against plans • If goals thwarted (or enabled) characters react
Emotional Reaction Movie clip
Modeling Emotions: Issues • Integrating gesture, natural language & voice to project realistic behavior • Managing unintended interpretations • Hollywood vs. Psychology • Movie emotions quite different from natural emotions • Recognizing human emotions
Challenge:Story is Critical • More than an event list • Successful stories: • Juxtapose contrasting elements • Surprise (plot twists) • Dilemmas • Things go wrong • Build to climax (and ebb)
Structuring Stories for Intelligent Agents: Issues • Traditional story telling tricks require linear structure • Immersed participant needs freewill • Need “bumpers” • Possibility: director agent controls environment & characters to limit choice
Reasons for Optimism • Hybrid approach • Use all the tools in the toolbox • Entertainment industry as source of knowledge and techniques • Story context constrains possibilities • Synergy from graphics, sound & emotional engagement • The mind is a willing collaborator