Stefan Kopp

Hannes Högni Vilhjálmsson, Stefan Kopp, Stacy Marsella: Editorial for special issue on intelligent virtual agents. Autonomous Agents and Multi-Agent Systems 27(2): 197-199 (2013)

Nicole C. Krämer, Stefan Kopp, Christian Becker-Asano, Nicole Sommer: Smile and the world will smile with you - The effects of a virtual agent's smile on users' evaluation and behavior. Int. J. Hum.-Comput. Stud. 71(3): 335-349 (2013)

Hendrik Buschmeier, Stefan Kopp: Co-constructing Grounded Symbols - Feedback and Incremental Adaptation in Human-Agent Dialogue. KI 27(2): 137-143 (2013)

Maha Salem, Stefan Kopp, Frank Joublin: Generating finely synchronized gesture and speech for humanoid robots: a closed-loop approach. HRI 2013: 219-220

Maha Salem, Stefan Kopp, Ipke Wachsmuth, Katharina J. Rohlfing, Frank Joublin: Generation and Evaluation of Communicative Robot Gesture. I. J. Social Robotics 4(2): 201-217 (2012)

Ulf Großekathöfer, Nils-Christian Wöhler, Thomas Hermann, Stefan Kopp: On-the-fly behavior coordination for interactive virtual agents: a model for learning, recognizing and reproducing hand-arm gestures online. AAMAS 2012: 1177-1178

Amir Sadeghipour, Louis-Philippe Morency, Stefan Kopp: Gesture-based Object Recognition using Histograms of Guiding Strokes. BMVC 2012: 1-11

Ulf Großekathöfer, Amir Sadeghipour, Thomas Lingner, Peter Meinicke, Thomas Hermann, Stefan Kopp: Low Latency Recognition and Reproduction of Natural Gesture Trajectories. ICPRAM (2) 2012: 154-161

Kristina Striegnitz, Hendrik Buschmeier, Stefan Kopp: Referring in Installments: A Corpus Study of Spoken Object References in an Interactive Virtual Environment. INLG 2012: 12-16

Kirsten Bergmann, Friederike Eyssel, Stefan Kopp: A Second Chance to Make a First Impression? How Appearance and Nonverbal Behavior Affect Perceived Warmth and Competence of Virtual Agents over Time. IVA 2012: 126-138

Herwin van Welbergen, Dennis Reidsma, Stefan Kopp: An Incremental Multimodal Realizer for Behavior Co-Articulation and Coordination. IVA 2012: 175-188

Hendrik Buschmeier, Stefan Kopp: Understanding How Well You Understood - Context- Sensitive Interpretation of Multimodal User Feedback. IVA 2012: 517-519

Hendrik Buschmeier, Timo Baumann, Benjamin Dosch, Stefan Kopp, David Schlangen: Combining Incremental Language Generation and Incremental Speech Synthesis for Adaptive Information Presentation. SIGDIAL Conference 2012: 295-303

Amir Sadeghipour, Stefan Kopp: Embodied Gesture Processing: Motor-Based Integration of Perception and Action in Social Artificial Agents. Cognitive Computation 3(3): 419-435 (2011)

Stefan Kopp, Jochen J. Steil: Special corner on "cognitive robotics". Cognitive Processing 12(4): 317-318 (2011)

Hannes Rieser, Kirsten Bergmann, Stefan Kopp: How Do Iconic Gestures Convey Visuo-Spatial Information? Bringing Together Empirical, Theoretical, and Simulation Studies. Gesture Workshop 2011: 139-150

Hendrik Buschmeier, Zofia Malisz, Marcin Wlodarczak, Stefan Kopp, Petra Wagner: 'Are You Sure You're Paying Attention?' - 'Uh-Huh' Communicating Understanding as a Marker of Attentiveness. INTERSPEECH 2011: 2057-2060

Hendrik Buschmeier, Stefan Kopp: Towards Conversational Agents That Attend to and Adapt to Communicative User Feedback. IVA 2011: 169-182

Ramin Yaghoubzadeh, Stefan Kopp: Creating Familiarity through Adaptive Behavior Generation in Human-Agent Interaction. IVA 2011: 195-201

Maha Salem, Katharina J. Rohlfing, Stefan Kopp, Frank Joublin: A friendly gesture: Investigating the effect of multimodal robot behavior in human-robot interaction. RO-MAN 2011: 247-252

Kirsten Bergmann, Hannes Rieser, Stefan Kopp: Regulating Dialogue with Gestures - Towards an Empirically Grounded Simulation with Conversational Agents. SIGDIAL Conference 2011: 88-97

Maha Salem, Friederike Eyssel, Katharina J. Rohlfing, Stefan Kopp, Frank Joublin: Effects of Gesture on the Perception of Psychological Anthropomorphism: A Case Study with a Humanoid Robot. ICSR 2011: 31-41

Hannes Högni Vilhjálmsson, Stefan Kopp, Stacy Marsella, Kristinn R. Thórisson (Eds.): Intelligent Virtual Agents - 11th International Conference, IVA 2011, Reykjavik, Iceland, September 15-17, 2011. Proceedings. Lecture Notes in Computer Science 6895, Springer 2011, isbn 978-3-642-23973-1

Kirsten Bergmann, Stefan Kopp: Modeling the Production of Coverbal Iconic Gestures by Learning Bayesian Decision Networks. Applied Artificial Intelligence 24(6): 530-551 (2010)

Stefan Kopp, Ruth Aylett, Jonathan Gratch, Patrick Olivier, Catherine Pelachaud: Guest editorial of the special issue on intelligent virtual agents. Autonomous Agents and Multi-Agent Systems 20(1): 1-2 (2010)

Bernd J. Kröger, Stefan Kopp, Anja Lowit: A model for production, perception, and acquisition of actions in face-to-face communication. Cognitive Processing 11(3): 187-205 (2010)

Philipp Cimiano, Stefan Kopp: Accessing the Web of Data through embodied virtual characters. Semantic Web 1(1-2): 83-88 (2010)

Stefan Kopp: Social resonance and embodied coordination in face-to-face conversation with artificial interlocutors. Speech Communication 52(6): 587-597 (2010)

Hendrik Buschmeier, Kirsten Bergmann, Stefan Kopp: Adaptive expressiveness: virtual conversational agents that can align to their interaction partner. AAMAS 2010: 91-98

Hendrik Buschmeier, Kirsten Bergmann, Stefan Kopp: Modelling and Evaluation of Lexical and Syntactic Alignment with a Priming-Based Microplanner. Empirical Methods in Natural Language Generation 2010: 85-104

Nils-Christian Wöhler, Ulf Grossekathofer, Angelika Dierker, Marc Hanheide, Stefan Kopp, Thomas Hermann: A Calibration-Free Head Gesture Recognition System with Online Capability. ICPR 2010: 3814-3817

Maha Salem, Stefan Kopp, Ipke Wachsmuth, Frank Joublin: Generating robot gesture using a virtual agent framework. IROS 2010: 3592-3597

Kirsten Bergmann, Stefan Kopp, Friederike Eyssel: Individualized Gesturing Outperforms Average Gesturing - Evaluating Gesture Production in Virtual Humans. IVA 2010: 104-117

Nicole C. Krämer, Laura Hoffmann, Stefan Kopp: Know Your Users! Empirical Results for Tailoring an Agent's Nonverbal Behavior to Different User Groups. IVA 2010: 468-474

Maha Salem, Stefan Kopp, Ipke Wachsmuth, Frank Joublin: Towards an integrated model of speech and gesture production for multi-modal robot behavior. RO-MAN 2010: 614-619

David Schlangen, Timo Baumann, Hendrik Buschmeier, Okko Buß, Stefan Kopp, Gabriel Skantze, Ramin Yaghoubzadeh: Middleware for Incremental Processing in Conversational Agents. SIGDIAL Conference 2010: 51-54

Stefan Kopp, Ipke Wachsmuth (Eds.): Gesture in Embodied Communication and Human-Computer Interaction, 8th International Gesture Workshop, GW 2009, Bielefeld, Germany, February 25-27, 2009, Revised Selected Papers. Lecture Notes in Computer Science 5934, Springer 2010, isbn 978-3-642-12552-2

Kirsten Bergmann, Stefan Kopp: Increasing the expressiveness of virtual agents: autonomous generation of speech and gesture for spatial description tasks. AAMAS (1) 2009: 361-368

Kirsten Bergmann, Stefan Kopp: Systematicity and Idiosyncrasy in Iconic Gesture Use: Empirical Analysis and Computational Modeling. Gesture Workshop 2009: 182-194

Kirsten Bergmann, Stefan Kopp: GNetIc - Using Bayesian Decision Networks for Iconic Gesture Generation. IVA 2009: 76-89

Amir Sadeghipour, Stefan Kopp: A Probabilistic Model of Motor Resonance for Embodied Gesture Perception. IVA 2009: 90-103

Laura Hoffmann, Nicole C. Krämer, Anh Lam-chi, Stefan Kopp: Media Equation Revisited: Do Users Show Polite Reactions towards an Embodied Agent? IVA 2009: 159-165

Astrid M. von der Pütten, Christian Reipen, Antje Wiedmann, Stefan Kopp, Nicole C. Krämer: The Impact of Different Embodied Agent-Feedback on Users' Behavior. IVA 2009: 549-551

Stefan Kopp, Kirsten Bergmann, Hendrik Buschmeier, Amir Sadeghipour: Requirements and Building Blocks for Sociable Embodied Agents. KI 2009: 508-515

Stefan Kopp, Kirsten Bergmann, Ipke Wachsmuth: Multimodal Communication from Multimodal Thinking - towards an Integrated Model of Speech and Gesture Production. Int. J. Semantic Computing 2(1): 115-136 (2008)

Christian Werner Becker, Stefan Kopp, Nadine Pfeiffer-Leßmann, Ipke Wachsmuth: Virtual Humans Growing up. KI 22(1): 23-27 (2008)

Dirk Heylen, Stefan Kopp, Stacy Marsella, Catherine Pelachaud, Hannes Högni Vilhjálmsson: The Next Step towards a Function Markup Language. IVA 2008: 270-280

Julia Tolksdorf, Christian Werner Becker-Asano, Stefan Kopp: Do You Know How I Feel? Evaluating Emotional Display of Primary and Secondary Emotions. IVA 2008: 548-549

Astrid M. von der Pütten, Christian Reipen, Antje Wiedmann, Stefan Kopp, Nicole C. Krämer: Comparing Emotional vs. Envelope Feedback for ECAs. IVA 2008: 550-551

Erik Weitnauer, Nick M. Thomas, Felix Rabe, Stefan Kopp: Intelligent Agents Living in Social Virtual Environments - Bringing Max into Second Life. IVA 2008: 552-553

Alexa Breuing, Thies Pfeiffer, Stefan Kopp: Conversational Interface Agents for the Semantic Web - a Case Study. International Semantic Web Conference (Posters & Demos) 2008

Jens Allwood, Stefan Kopp, Karl Grammer, Elisabeth Ahlsén, Elisabeth Oberzaucher, Markus Koppensteiner: The analysis of embodied communicative feedback in multimodal corpora: a prerequisite for behavior simulation. Language Resources and Evaluation 41(3-4): 255-272 (2007)

Thorsten Stocksmeier, Stefan Kopp, Dafydd Gibbon: Synthesis of prosodic attitudinal variants in German backchannel ja. INTERSPEECH 2007: 1290-1293

Hannes Högni Vilhjálmsson, Nathan Cantelmo, Justine Cassell, Nicolas Ech Chafai, Michael Kipp, Stefan Kopp, Maurizio Mancini, Stacy Marsella, Andrew N. Marshall, Catherine Pelachaud, Zsófia Ruttkay, Kristinn R. Thórisson, Herwin van Welbergen, Rick J. van der Werf: The Behavior Markup Language: Recent Developments and Challenges. IVA 2007: 99-111

Stefan Kopp, Thorsten Stocksmeier, Dafydd Gibbon: Incremental Multimodal Feedback for Conversational Agents. IVA 2007: 139-146

Nicole C. Krämer, Nina Simons, Stefan Kopp: The Effects of an Embodied Conversational Agent's Nonverbal Behavior on User's Evaluation and Behavioral Mimicry. IVA 2007: 238-251

Stefan Kopp, Kirsten Bergmann: Towards an Architecture for Aligned Speech and Gesture Production. IVA 2007: 389-390

Kristinn R. Thórisson, Hannes Högni Vilhjálmsson, Catherine Pelachaud, Stefan Kopp, Norman I. Badler, W. Lewis Johnson, Stacy Marsella, Brigitte Krenn: Representations for Multimodal Generation: A Workshop Report. AI Magazine 27(1): 108 (2006)

Stefan Kopp, Olaf Graeser: Imitation Learning and Response Facilitation in Embodied Agents. IVA 2006: 28-41

Stefan Kopp, Brigitte Krenn, Stacy Marsella, Andrew N. Marshall, Catherine Pelachaud, Hannes Pirker, Kristinn R. Thórisson, Hannes Högni Vilhjálmsson: Towards a Common Framework for Multimodal Generation: The Behavior Markup Language. IVA 2006: 205-217

Stefan Kopp, Jens Allwood, Karl Grammer, Elisabeth Ahlsén, Thorsten Stocksmeier: Modeling Embodied Feedback with Virtual Humans. ZiF Workshop 2006: 18-37

Stefan Kopp, Lars Gesellensetter, Nicole C. Krämer, Ipke Wachsmuth: A Conversational Agent as Museum Guide - Design and Evaluation of a Real-World Application. IVA 2005: 329-343

Stefan Kopp, Ipke Wachsmuth: Synthesizing multimodal utterances for conversational agents. Journal of Visualization and Computer Animation 15(1): 39-52 (2004)

Christian Werner Becker, Stefan Kopp, Ipke Wachsmuth: Simulating the Emotion Dynamics of a Multimodal Conversational Agent. ADS 2004: 154-165

Stefan Kopp, Paul Tepper, Justine Cassell: Towards integrated microplanning of language and iconic gesture for multimodal output. ICMI 2004: 97-104

Stefan Kopp: Synthese und Koordination von Sprache und Gestik für virtuelle multimodale Agenten. DISKI 265, Infix Akademische Verlagsgesellschaft 2003, isbn 978-3-89838-265-6, pp. I-XIV, 1-260

Stefan Kopp: Synthese und Koordination von Sprache und Gestik für virtuelle multimodale Agenten. Bielefeld University 2003, isbn 3-89838-265-6, pp. 1-260

Stefan Kopp, Bernhard Jung, Nadine Leßmann, Ipke Wachsmuth: Max - A Multimodal Assistant in Virtual Reality Construction. KI 17(4): 11- (2003)

Stefan Kopp, Timo Sowa, Ipke Wachsmuth: Imitation Games with an Artificial Agent: From Mimicking to Understanding Shape-Related Iconic Gestures. Gesture Workshop 2003: 436-447

Bernhard Jung, Stefan Kopp: FlurMax: An Interactive Virtual Agent for Entertaining Visitors in a Hallway. IVA 2003: 23-26

Stefan Kopp, Ipke Wachsmuth: Model-based Animation of Coverbal Gesture. CA 2002: 252-260

Ipke Wachsmuth, Stefan Kopp: Lifelike Gesture Synthesis and Timing for Conversational Agents. Gesture Workshop 2001: 120-133

Ipke Wachsmuth, Ian Voss, Timo Sowa, Marc Erich Latoschik, Stefan Kopp, Bernhard Jung: Multimodale Interaktion in der Virtuellen Realität. Mensch & Computer 2001: 265-274

Bernhard Jung, Stefan Kopp, Marc Erich Latoschik, Timo Sowa, Ipke Wachsmuth: Virtuelles Konstruieren mit Gestik und Sprache. KI 14(2): 5-11 (2000)

Stefan Kopp, Ipke Wachsmuth: Planning and Motion Control in Lifelike Gesture: A Refined Approach. CA 2000: 92-97

Stefan Kopp, Ipke Wachsmuth: A Knowledge-based Approach for Lifelike Gesture Animation. ECAI 2000: 663-667