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Author: Heylen, D.K.J.
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2012

Heylen, D.K.J. and van Dijk, E.M.A.G. and Nijholt, A. (2012) Robotic Rabbit Companions: amusing or a nuisance? Journal on Multimodal User Interfaces, 5 (1). pp. 53-59. ISSN 1783-7677
de Kok, I.A. and Heylen, D.K.J. (2012) Analyzing Nonverbal Listener Responses using Parallel Recordings of Multiple Listeners. Cognitive Processing, online pre-publication. ISSN 1612-4782 *** ISI Impact 1,030 ***
de Kok, I.A. and Poppe, R.W. and Heylen, D.K.J. (2012) Iterative Perceptual Learning for Social Behavior Synthesis. Technical Report TR-CTIT-12-01, Centre for Telematics and Information Technology, University of Twente, Enschede. ISSN 1381-3625

2011

Andre, E. and Bevacqua, E. and Heylen, D.K.J. and Niewiadomski, R. and Pelachaud, C. and Peters, C. and Poggi, I. and Rehm, M. (2011) Non-verbal Persuasion and Communication in an Affective Agent. In: Emotion Oriented Systems. The Humaine Handbook. Cognitive Technologies. Springer Verlag, London, pp. 585-608. ISSN 1611-2482 ISBN 978-3-642-15183-5
Cowie, R. and Cox, C. and Martin, J.C. and Batliner, A. and Heylen, D.K.J. and Karpouzis, K. (2011) Issues in Data Labelling. In: Emotion-Oriented Systems. The Humaine Handbook. Cognitive Technologies. Springer Verlag, London, pp. 213-241. ISSN 1611-2482 ISBN 978-3-642-15183-5
Dral, J. and Heylen, D.K.J. and op den Akker, H.J.A. (2011) Detecting Uncertainty in Spoken Dialogues: An explorative research for the automatic detection of speaker uncertainty by using prosodic markers. In: Affective Computing and Sentiment Analysis. Text, Speech, and Language Analysis 45. Springer Verlag, London, pp. 67-77. ISSN 1386-291X ISBN 978-94-007-1756-5
Heylen, D.K.J. and op den Akker, H.J.A. and ter Maat, M. and Petta, P. and Rank, S. and Reidsma, D. and Zwiers, J. (2011) On the nature of engineering social artificial companions. Applied Artificial Intelligence, 25 (6). pp. 549-574. ISSN 0883-9514 *** ISI Impact 0,563 ***
Heylen, D.K.J. and Bevacqua, E. and Pelachaud, C. and Poggi, I. and Gratch, J. and Schröder, M. (2011) Generating Listening Behaviour. In: Emotion-oriented Systems. The Humaine Handbook. Cognitive Technologies. Springer Verlag, London, pp. 321-347. ISSN 1611-2482 ISBN 978-3-642-15183-5
de Kok, I.A. and Heylen, D.K.J. (2011) Appropriate and Inappropriate Timing of Listener Responses from Multiple Perspectives. In: Proceedings of the 10th International Conference on Intelligent Virtual Agents (IVA 2011), 15-17 Sep 2011, Reykjavik, Iceland. pp. 248-254. Lecture Notes in Computer Science 6895. Springer Verlag. ISBN 978-3-642-23973-1
de Kok, I.A. and Heylen, D.K.J. (2011) When Do We Smile? Analysis and Modeling of the Nonverbal Context of Listener Smiles in Conversation. In: Proceedings of the 4th 4th International Conference on Affective Computing and Intelligent Interaction, ASCII 2011, 9-12 Oct 2011, Memphis, Tennessee, USA. pp. 477-486. Lecture Notes in Computer Science 6974. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-24599-2
de Kok, I.A. and Heylen, D.K.J. (2011) Observations on Listener Responses from Multiple Perspectives. In: Proceedings of the 3rd Nordic Symposium on Multimodal Communication, 27-28 May 2011, Helsinki, Finland. pp. 48-55. NEALT Proceedings Series 15. Northern European Association for Language Technology. ISSN 1736-6305
de Kok, I.A. and Heylen, D.K.J. (2011) The MultiLis Corpus - Dealing with Individual Differences in Nonverbal Listening Behavior. In: Third COST 2102 International Training School, 15-19 Mar 2010, Caserta, Italy. pp. 362-375. Lecture Notes in Computer Science 6456. Springer Verlag. ISBN 978-3-642-18184-9
ter Maat, M. and Heylen, D.K.J. (2011) Flipper: An Information State Component for Spoken Dialogue Systems. In: Proceedings of the 10th international conference on Intelligent Virtual Agents (IVA 2011), 15-17 Sep 2011, Reykjavik, Iceland. pp. 470-472. Lecture Notes in Computer Science 6895. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-23973-1
ter Maat, M. and Truong, K.P. and Heylen, D.K.J. (2011) How Agents' Turn-taking Strategies Influence Impressions and Response Behaviors. Presence: Teleoperators and Virtual Environments, 20 (5). pp. 412-430. ISSN 1054-7460 *** ISI Impact 1,097 ***
Mühl, C. and van den Broek, E.L. and Brouwer, A.-M. and Nijboer, F. and Wouwe, N. and Heylen, D.K.J. (2011) Multi-modal affect induction for affective brain-computer interfaces. In: Proceedings of the 4th International Conference on Affective Computing and Intelligent Interaction (ACII 2011), Part I, October 9–12, 2011, Memphis, TN, USA. pp. 235-245. Lecture Notes in Computer Science 6974. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-24599-2
Mühl, C. and Brouwer, A.-M. and van Wouwe, N. and van den Broek, E.L. and Nijboer, F. and Heylen, D.K.J. (2011) Modality-specific Affective Responses and their Implications for Affective BCI. In: Proceedings of the Fifth International Brain-Computer Interface Conference 2011, 22-24 Sep 2011, Graz, Austria. pp. 120-123. Verlag der Technischen Universität. ISBN 978-3-85125-140-1
Mühl, C. and Nijholt, A. and Allison, B. and Dunne, S. and Heylen, D.K.J. (2011) Affective Brain-Computer Interfaces (aBCI 2011). In: Proceedings 4th International Conference on Affective Computing and Intelligent Interaction (ACII2011), Part II, 9-12 Oct 2011, Memphis, TN, USA. 435. Lecture Notes in Computer Science 6975. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-24570-1
Nijholt, A. and Pasch, M. and van Dijk, E.M.A.G. and Reidsma, D. and Heylen, D.K.J. (2011) Observations on Experience and Flow in Movement-Based Interaction. In: Whole Body Interaction. Human–Computer Interaction Series. Springer-Verlag, London, pp. 101-119. ISSN 1571-5035 ISBN 978-0-85729-432-6
Pantic, M. and Cowie, R. and D'Errico, F. and Heylen, D.K.J. and Mehu, M. and Pelachaud, C. and Poggi, I. and Schroeder, M. and Vinciarelli, A. (2011) Social Signal Processing: The Research Agenda. In: Visual Analysis of Humans. Springer Verlag, London, pp. 511-538. ISBN 978-0-85729-996-3
Poppe, R.W. and Truong, K.P. and Heylen, D.K.J. (2011) Backchannels: Quantity, Type and Timing Matters. In: International Conference on Intelligent Virtual Agents (IVA 2011), 15-17 Sep 2011, Reykjavik, Iceland. pp. 228-239. Lecture Notes in Computer Science 6895. Springer Verlag. ISBN 978-3-642-23973-1
Schröder, M. and Pammi, S. and Gunes, H.J.A. and Pantic, M. and Valstar, M. and Cowie, R. and McKeown, G. and Heylen, D.K.J. and ter Maat, M. and Eyben, F. and Schuller, B. and Wölmmer, M. and Bevacqua, E. and Pelachaud, C. and De Sevin, E.20 (2011) Come and have an emotional workout with sensitive artificial listeners! In: IEEE International Conference on Automatic Face & Gesture Recognition and Workshops (FG 2011), 21-25 March 2011, Santa Barbara, CA. pp. 646-646. IEEE Computer Society. ISBN 978-1-4244-9140-7
Truong, K.P. and Poppe, R.W. and de Kok, I.A. and Heylen, D.K.J. (2011) A Multimodal Analysis of Vocal and Visual Backchannels in Spontaneous Dialogs. In: Proceedings of Interspeech 2011, 27-31 Aug 2011, Florence, Italy. pp. 2973-2976. International Speech Communication Association. ISSN 1990-9772

2010

de Kok, I.A. and Heylen, D.K.J. (2010) Differences in Listener Responses between Procedural and Narrative Tasks. In: Proceedings of the 2nd International Workshop on Social Signal Processing, SSPW '10, 20 Oct 2010, Florence, Italy. pp. 5-10. ACM. ISBN 978-1-4503-0414-6
de Kok, I.A. and Ozkan, D. and Heylen, D.K.J. and Morency, L.-P. (2010) Learning and Evaluating Response Prediction Models using Parallel Listener Consensus. In: International Conference on Multimodal Interfaces and the Workshop on Machine Learning for Multimodal Interaction, ICMI-MLMI '10, 8-10 Nov 2010, Beijing, China. 3:1-3:8. ACM. ISBN 978-1-4503-0414-6
van de Laar, B.L.A. and Reuderink, B. and Plass-Oude Bos, D. and Heylen, D.K.J. (2010) Evaluating user experience of actual and imagined movement in BCI gaming. International journal of Gaming and Computer Mediated Simulations, 2 (4). pp. 33-47. ISSN 1942-3888
ter Maat, M. and Heylen, D.K.J. (2010) Selecting appropriate agent responses based on non-content features. In: Proceedings of the 3rd international workshop on Affective interaction in natural environments (AFFINE 2010), 25-29 October 2010, Firenze, Italy. pp. 33-36. ACM. ISBN 978-1-4503-0170-1
ter Maat, M. and Truong, K.P. and Heylen, D.K.J. (2010) How turn-taking strategies influence users’ impressions of an agent. In: Proceedings of the International Conference on Intelligent Virtual Agents (IVA), 20-22 Sep 2010, Philadelphia, PA, USA. pp. 441-453. Lecture Notes in Computer Science 6356. Springer Verlag. ISBN 978-3-642-15891-9
Mühl, C. and Gürkök, H. and Plass-Oude Bos, D. and Thurlings, M.E. and Scherffig, L. and Duvinage, M. and Elbakyan, A.A. and Kang, S. and Poel, M. and Heylen, D.K.J. (2010) Bacteria Hunt: Evaluating multi-paradigm BCI interaction. Journal on Multimodal User Interfaces, 4 (1). pp. 11-25. ISSN 1783-7677
Mühl, C. and Gürkök, H. and Plass-Oude Bos, D. and Thurlings, M.E. and Scherffig, L. and Duvinage, M. and Elbakyan, A.A. and Kang, S. and Poel, M. and Heylen, D.K.J. (2010) Bacteria Hunt: A multimodal, multiparadigm BCI game. In: Proceedings of the Fifth International Summer Workshop on Multimodal Interfaces, eNTERFACE'09, 13 Jul - 07 Aug 2009, Genova, Italy. pp. 41-62. DIST-University of Genova. ISBN 978-88-901344-7-0
Plass-Oude Bos, D. and Reuderink, B. and van de Laar, B.L.A. and Gürkök, H. and Mühl, C. and Poel, M. and Heylen, D.K.J. and Nijholt, A. (2010) Human-Computer Interaction for BCI Games: Usability and User Experience. In: Proceedings of the International Conference on CYBERWORLDS 2010, 20-22 Oct 2010, Singapore. pp. 277-281. IEEE Computer Society. ISBN 978-0-7695-4215-7
Plass-Oude Bos, D. and Reuderink, B. and van de Laar, B.L.A. and Gürkök, H. and Mühl, C. and Poel, M. and Nijholt, A. and Heylen, D.K.J. (2010) Brain-Computer Interfacing and Games. In: Brain-Computer Interfaces. Applying our Minds to Human-Computer Interaction. Human-Computer Interaction Series. Springer Verlag, London, pp. 149-178. ISSN 1571-5035 ISBN 978-1-84996-271-1
Poppe, R.W. and Truong, K.P. and Reidsma, D. and Heylen, D.K.J. (2010) Backchannel Strategies for Artificial Listeners. In: International Conference on Intelligent Virtual Agents (IVA), 20-22 Sep 2010, Philadelphia, PA, USA. pp. 146-158. Lecture Notes in Computer Science 6356. Springer Verlag. ISBN 978-3-642-15891-9
Rienks, R.J. and Poppe, R.W. and Heylen, D.K.J. (2010) Differences in head orientation behavior for speakers and listeners: An experiment in a virtual environment. ACM Transactions on Applied Perception, 7 (1). 2:1-2:13. ISSN 1544-3558 *** ISI Impact 0,776 ***
Truong, K.P. and Heylen, D.K.J. (2010) Disambiguating the functions of conversational sounds with prosody: the case of 'yeah'. In: Proceedings of Interspeech 2010, 26-30 September 2010, Makuhari, Chiba, Japan. pp. 2554-2557. International Speech Communication Association (ISCA). ISSN 1990-9772
Truong, K.P. and Poppe, R.W. and Heylen, D.K.J. (2010) A rule-based backchannel prediction model using pitch and pause information. In: Proceedings of Interspeech 2010, 26-30 September 2010, Makuhari, Chiba, Japan. pp. 3058-3061. International Speech Communication Association (ISCA). ISSN 1990-9772
Vyas, D.M. and Nijholt, A. and Heylen, D.K.J. and Kroener, A. and van der Veer, G.C. (2010) Remarkable Objects: Supporting Collaboration in a Creative Environment. In: 12th ACM International Conference on Ubiquitous Computing, 26-29 September, Copenhagen, Denmark. pp. 37-40. ACM. ISBN 978-1-60558-843-8

2009

Heylen, D.K.J. (2009) Understanding Speaker-Listener Interaction. In: Proceedings of the 10th Annual Conference of the International Speech Communication Association (Interspeech 2009), 6 Sep - 10 Sep 2009, Brighton, United Kingdom. pp. 2151-2154. International Speech Communication Association. ISSN 1990-9772
Heylen, D.K.J. and Poel, M. and Nijholt, A. (2009) Using the iCat as Avatar in Remote Meetings. In: Multimodal Signals: Cognitive and Algorithmic Issues, 21-26 April 2008, Vietri sul Mare, Italy. pp. 60-66. Lecture Notes in Computer Science 5398. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-00524-4
Heylen, D.K.J. and Theune, M. and op den Akker, H.J.A. and Nijholt, A. (2009) Social Agents: the first generations. In: Proceedings 2009 International Workshop on Social Signals Processing, 13 September 2009, Amsterdam. pp. 114-120. ACII 2009 Proceedings 2. IEEE Computer Society. ISBN 978-1-4244-4799-2
de Kok, I.A. and Heylen, D.K.J. (2009) Multimodal End-of-Turn Prediction in Multi-Party Meetings. In: Proceedings of the International Conference on Multimodal Interfaces, ICMI-MLMI 2009, 2-6 nov 2009, Cambridge, MA, USA. pp. 91-98. ACM. ISBN 978-1-60558-772-1
van de Laar, B.L.A. and Plass-Oude Bos, D. and Reuderink, B. and Heylen, D.K.J. (2009) Actual and Imagined Movement in BCI Gaming. In: Proceedings of the International Conference on Artificial Intellingence and Simulation of Behaviour (AISB 2009), 06-09 Apr 2009, Edinburgh, Scotland. SSAISB, Brighton. ISBN 1902956818
ter Maat, M. and Heylen, D.K.J. (2009) Using Context to Disambiguate Communicative Signals. In: Multimodal Signals: Cognitive and Algorithmic Issues, COST Action 2102 and euCognition International School, April 21-26 2008, Vietri sul Mare, Italy. pp. 67-74. Lecture Notes in Computer Science 5398. Springer Verlag. ISBN 978-3-642-00524-4
ter Maat, M. and Heylen, D.K.J. (2009) Turn Management or Impression Management? In: Intelligent Virtual Agents, 9th International Conference, IVA 2009, 14-16 Sep 2009, Amsterdam, Netherlands. pp. 467-473. Lecture Notes in Computer Science 5773. Springer Verlag. ISBN 978-3-642-04379-6
Mühl, C. and Heylen, D.K.J. (2009) Cross-modal Elicitation of Affective Experience. In: Proceedings of the 3rd International Conference on Affective Computing and Intelligent Interaction and Workshops. ACII 2009. Volume 2, 9 Sept 2009, Amsterdam, The Netherlands. pp. 42-53. IEEE Computer Society. ISBN 978-1-4244-4799-2
Mühl, C. and Heylen, D.K.J. and Nijholt, A. (2009) Affective Brain-Computer Interfaces: Preface. In: Proceedings Workshop on Affective Brain-Computer Interfaces. ACII 2009 Proceedings 2. IEEE Computer Society, Los Alamitos, iii. ISBN 978-1-4244-4799-2
Nijholt, A. and Heylen, D.K.J. and Rienks, R.J. (2009) Creating Social Technologies to Assist and Understand Social Interactions. In: Handbook of Research on Socio-Technical Design and Social Networking. IGI Global Books, Hershey, PA, USA, pp. 416-428. ISBN 978-1-60566-264-0
Poel, M. and Heylen, D.K.J. and Nijholt, A. and Meulemans, M. and van Bremen, A. (2009) Gaze Behavior, Believability, Likability and the iCat. AI and Society, 24 (1). pp. 61-73. ISSN 0951-5666
Reidsma, D. and Heylen, D.K.J. and op den Akker, H.J.A. (2009) On the Contextual Analysis of Agreement Scores. In: Multimodal Corpora -- From Models of Natural Interaction to Systems and Applications, 27 May 2008, Morocco. pp. 122-137. Lecture Notes in Computer Science 5509. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-04792-3
Schröder, M. and Bevacqua, E. and Eyben, F. and Gunes, H. and Heylen, D.K.J. and ter Maat, M. and Pammi, S. and Pantic, M. and Pelachaud, C. and Schuller, B. and de Sevin, E. and Valstar, M.F. and Wöllmer, M. (2009) A Demonstration of Audiovisual Sensitive Artificial Listeners. In: 4th International HUMAINE Association Conference on Affective Computing and Intelligent Interaction, 10-12 Sep 2009, Amsterdam, Netherlands. pp. 263-264. IEEE Computer Society. ISBN 978-1-4244-4799-2
van Straalen, B. and Heylen, D.K.J. and Theune, M. and Nijholt, A. (2009) Enhancing Embodied Conversational Agents with Social and Emotional Capabilities. In: Agents for Games and Simulations, 11 May 2009, Budapest, Hungary. pp. 95-106. Lecture Notes in Computer Science 5920. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-11197-6
Vyas, D.M. and Heylen, D.K.J. and Nijholt, A. and van der Veer, G.C. (2009) Experiential Role of Artefacts in Cooperative Design. In: Proceedings of the 4th International Conference on Communities & Technologies (C&T'09), 25-27 June 2009, Pennsylvania, USA. pp. 105-114. ACM. ISBN 978-1-60558-601-4
Vyas, D.M. and Heylen, D.K.J. and Nijholt, A. and van der Veer, G.C. (2009) Collaborative Practices that Support Creativity in Design. In: ECSCW 2009. Springer Verlag, Berlin, pp. 151-170. ISBN 978-1-84882-853-7
Vyas, D.M. and van der Veer, G.C. and Heylen, D.K.J. and Nijholt, A. (2009) Space as a Resource in Creative Design Practices. In: Human-Computer Interaction - INTERACT 2009. IFIP International Federation for Information Processing 2009 II (LNCS 5727). Springer Verlag, London, pp. 169-172. ISBN 978-3-642-03657-6
Vyas, D.M. and van der Veer, G.C. and Heylen, D.K.J. and Nijholt, A. (2009) ''Show me, how does it look now'': Remote Help-giving in Collaborative Design. In: Proceedings of European Conference on Cognitive Ergonomics 2009, 28 Sept - 2 Oct 2009, Helsinki, Finland. pp. 131-135. VTT Symposium 258. VTT. ISSN 0357-9387 ISBN 978-951-38-6339-5

2008

Douglas-Cowie, E. and Cowie, R. and Cox, C. and Amier, N. and Heylen, D.K.J. (2008) The Sensitive Artificial Listner: an induction technique for generating emotionally coloured conversation. In: LREC Workshop on Corpora for Research on Emotion and Affect, 26 May 2008, Marrakech, Marokko. pp. 1-4. ELRA. ISBN 2-9517408-4-0
Dral, J. and Heylen, D.K.J. and op den Akker, H.J.A. (2008) Detecting uncertainty in spoken dialogues: an explorative research to the automatic detection of a speakers' uncertainty by using prosodic markers. In: Sentiment analysis: emotion, metaphor, ontology and terminology, 27 May 2008, Marrakech, Marocco. pp. 72-78. ELRA. ISBN 2-9517408-4-0
Heylen, D.K.J. (2008) Listening Heads. In: Modeling Communication with robots and virtual humans. Lecture Notes in Artificial Intelligence 4930. Springer Verlag, Berlin, pp. 241-259. ISSN 0302-9743 ISBN 978-3-540-79036-5
Heylen, D.K.J. and Kopp, S. and Marsella, S.C. and Pelachaud, C. and Vilhjálmsson, H.H. (2008) The Next Step towards a Function Markup Language. In: Intelligent Virtual Agents 2008, 1-3 Sep 2008, Tokyo, Japan. pp. 270-280. Lecture Notes in Artificial Intelligence 5208. Springer Verlag. ISSN 0302-9743 ISBN 978-3-540-85482-1
Nijholt, A. and van Dijk, E.M.A.G. and Heylen, D.K.J. (2008) Multi-modal Behavioral Cues from Bodily Interaction in Ambient Entertainment Applications. In: 6th International Conference on Methods and Techniques in Behavioral Research, Measuring Behavior 2008, 26-29 Aug 2008, Maastricht, Netherlands. pp. 96-97. Noldus. ISBN 978-90-74821-81-0
Nijholt, A. and van Erp, J.B.F. and Heylen, D.K.J. (2008) BrainGain: BCI for HCI and Games. In: Symposium Brain Computer Interfaces and Human Computer Interaction: A Convergence of Ideas at the AISB 2008 Convention "Communication, Interaction and Social Intelligence", 2 April 2008, Aberdeen, UK. pp. 32-35. The Society for the Study of Artificial Intelligence and Simulation of Behaviour. ISBN 1 902956 64 8
Reidsma, D. and Heylen, D.K.J. and op den Akker, H.J.A. (2008) On the Contextual Analysis of Agreement Scores. In: Proceedings of the LREC Workshop on Multimodal Corpora, 27 May 2008, Marrakech, Morrocco. pp. 52-55. ELRA. ISBN 2-9517408-4-0
Schröder, M. and Cowie, R. and Heylen, D.K.J. and Pantic, M. and Pelachaud, C. and Schuller, B. (2008) Towards responsive Sensitive Artificial Listeners. In: Proceedings of the Fourth International Workshop on Human-Computer Conversation, 6-7 Oct 2008, Bellagio, Italy. University of Sheffield. ISBN not assigned
Swartjes, I.M.T. and Kruizinga, E.E. and Theune, M. and Heylen, D.K.J. (2008) Emergent Narrative and Late Commitment. In: Proceedings of the Eight International Conference on Intelligent Virtual Agents, 1-3 Sep 2008, Tokyo, Japan. pp. 543-544. Lecture Notes in Artificial Intelligence 5208/2008. Springer Verlag. ISSN 0302-9743
Vyas, D.M. and Heylen, D.K.J. and Nijholt, A. (2008) Designing Awareness Support for Distributed Cooperative Design Teams. In: 15th European Conference on Cognitive Ergonomics, 16-19 Sept 2008, Madeira, Portugal. pp. 23-26. ACM. ISBN 978-1-60558-399-0
Vyas, D.M. and Heylen, D.K.J. and Nijholt, A. (2008) Physicality and Cooperative Design. In: 5th Joint Workshop on Machine Learning and Multimodal Interaction, 8-10 Sept 2008, Utrecht, the Netherlands. pp. 325-337. Springer Verlag. ISSN 0302-9743 ISBN 978-3-540-85852-2

2007

op den Akker, H.J.A. and Heylen, D.K.J. (2007) Feedback Loops in Communication and Human Computing. In: Artifical Intelligence for Human Computing. Lecture Notes in Computer Science 4451. Springer Verlag, Berlin, pp. 215-233. ISBN 978-3-540-72346-2
Heylen, D.K.J. (2007) Multimodal Backchannel Generation for Conversational Agents. In: Proceedings of the Workshop on Multimodal Output Generation, MOG 2007, 25-26 Jan 2007, Aberdeen, United Kingdom. pp. 81-92. CTIT Workshop Proceedings WP07-01. Centre for Telematics and Information Technology University of Twente. ISSN 1574-0846
Heylen, D.K.J. and op den Akker, H.J.A. (2007) Computing Backchannel Distributions in Multi-Party Conversations. In: Proceedings of the ACL Workshop on Embodied Language Processing, 28 June 2007, Prague. pp. 17-24. Association of Computational Linguistics. ISBN not assigned
Heylen, D.K.J. and Bevacqua, E. and Tellier, M. and Pelachaud, C. (2007) Searching for Prototypical Facial Feedback Signals. In: Intelligent Virtual Agents. Lecture Notes in Computer Science 4722/2007. Springer Verlag, Berlin, pp. 147-153. ISBN 978-3-540-74996-7
Heylen, D.K.J. and Nijholt, A. and Poel, M. (2007) Generating Nonverbal Signals for a Sensitive Artificial Listener. In: Verbal and Nonverbal Communication Behaviours, 29-31 March 2007, Vietri sul Mare, Italy. pp. 264-274. Lecture Notes in Computer Science 4775. Springer Verlag. ISSN 0302-9743 ISBN 978-3-540-76441-0
Hoekstra, A. and Prendinger, H. and Bee, N. and Heylen, D.K.J. and Ishizuka, M. (2007) Highly Realistic 3D Presentation Agents with Visual Attention Capability. In: Smart Graphics. Lecture Notes in Computer Science 4569/2007. Springer Verlag, Berlin, pp. 73-84. ISBN 978-3-540-73213-6
Poel, M. and Heylen, D.K.J. and Nijholt, A. and Meulemans, M. (2007) Gaze Behavior, Believability, Likability and the iCat. In: Proceedings Sixth Workshop on Social Intelligence Design, 2-4 July 2007, Trento, Italy. pp. 109-124. CTIT Workshop Proceedings Series WP07-02. Centre for Telematics and Information Technology University of Twente. ISSN 1574-0846
Poppe, R.W. and Rienks, R.J. and Heylen, D.K.J. (2007) Accuracy of head orientation perception in triadic situations: Experiment in a virtual environment. Perception, 36 (7). pp. 971-979. ISSN 0301-0066 *** ISI Impact 1,293 ***
Reidsma, D. and op den Akker, H.J.A. and Rienks, R.J. and Poppe, R.W. and Nijholt, A. and Heylen, D.K.J. and Zwiers, J. (2007) Virtual Meeting Rooms: From Observation to Simulation. AI and Society, 22 (2). pp. 133-144. ISSN 0951-5666
Rienks, R.J. and Nijholt, A. and Heylen, D.K.J. (2007) Verbal behavior of the more and the less influential meeting participant. In: Proceedings Workshop on Tagging, Mining and Retrieval of Human Related Activity Information, 15 Nov 2007, Nagoya, Japan. pp. 2-9. ACM. ISBN 978-1-59593-870-1
Vyas, D.M. and Heylen, D.K.J. and Eliëns, A.P.W. and Nijholt, A. (2007) Experiencing-in-the-World : Using Pragmatist Philosophy to Design for Aesthetic Experience. (Invited) In: Proceedings of the 3rd International Conference on Designing for Users Experience, 5-7 Nov 2007, Chicago, USA. pp. 1-16. ACM Press. ISBN 978-1-60558-308-2

2006

Fikkert, F.W. and Heylen, D.K.J. and van Dijk, E.M.A.G. and Nijholt, A. and Kuipers, J. and Brugman, A. (2006) Estimating the Gaze Point of a Student in a Driving Simulator. In: International Conference on Advanced Learning Technologies (ICALT) - Technologies for Life-Long Learning, 5-7 July 2006, Kerkrade, The Netherlands. pp. 497-501. IEEE Computer Society. ISBN 0-7695-2632-2
Heylen, D.K.J. (2006) Head gestures, gaze and the principles of conversational structure. International journal of Humanoid Robotics, 3 (3). pp. 241-267. ISSN 0219-8436 *** ISI Impact 0,879 ***
Heylen, D.K.J. (2006) Investigating mind markers in design meetings. (Invited) In: Group Decision and Negotiation 2006, 25-28 Jun 2006, Karlsruhe. pp. 132-134. Universitätsverlag Karlsruhe. ISBN 3-86644-044-8
Heylen, D.K.J. (2006) Facial displays, emotional expressions and conversational acts. In: Cybernetics and Systems, 18-21 Apr 2006, Vienna. pp. 625-630. Austrian Society for Cybernetic Studies. ISBN 3-85206-172-5
Heylen, D.K.J. and Nijholt, A. and Reidsma, D. (2006) Determining what people feel and think when interacting with humans and machines. In: First California Conference on Recent Advances in Engineering Mechanics, 12-14 Jan 2006, Fullerton, CA. pp. 1-6. California State University. ISBN not assigned
Heylen, D.K.J. and Reidsma, D. and Ordelman, R.J.F. (2006) Annotating State of Mind in Meeting Data. In: Proc. of the LREC2006 Workshop on Corpora for Research on Emotion and Affect, 22-28 May 2006, Genoa, Italy. pp. 84-87. ELRA. ISBN not assigned
Nijholt, A. and op den Akker, H.J.A. and Heylen, D.K.J. (2006) Meetings and Meeting Modeling in Smart Environments. AI and Society, 20 (2). pp. 202-220. ISSN 0951-5666
Nijholt, A. and de Ruyter, B. and Heylen, D.K.J. and Privender, S. (2006) Social User Interfaces. In: True Visions: The Emergence of Ambient Intelligence. Springer Verlag, Berlin, pp. 275-289. ISBN 978-3-540-28972-2
Reidsma, D. and Heylen, D.K.J. and Ordelman, R.J.F. (2006) Annotating Emotions in Meetings. In: Proc. of the fifth international conference on Language Resources and Evaluation, LREC 2006, May 2006, Genoa, Italy. pp. 1117-1122. ELRA. ISBN 2-9517408-2-4
Rienks, R.J. and Heylen, D.K.J. (2006) Automatic Dominance Detection in Meetings using easily obtainable features. In: Revised Selected Papers of the 2nd Joint Workshop on Multimodal Interaction and Related Machine Learning Algorithms MLMI 2005, 11-13 Jul 2005, Edinburgh, Scotland. pp. 76-86. Lecture Notes in Computer Science 3869. Springer Verlag. ISBN 978-3-540-32549-9
Schröder, M. and Heylen, D.K.J. and Poggi, I. (2006) Perception of non-verbal emotional listener feedback. In: Speech Prosody 2006, 2-5 May 2006, Dresden. pp. 43-46. Studientexte zur Sprachkommunication 40. TUDpress Delft. ISSN 0940-6832 ISBN 3-938863-57-9
Theune, M. and Meijs, K. and Heylen, D.K.J. and Ordelman, R.J.F. (2006) Generating Expressive Speech for Storytelling Applications. IEEE transactions on audio, speech and language processing, 14 (4). pp. 1137-1144. ISSN 1558-7916 *** ISI Impact 1,668 ***
Verbree, A.T. and Rienks, R.J. and Heylen, D.K.J. (2006) First Steps Towards the Automatic Construction of Argument-Diagrams from Real Discussions. In: Proceedings of the in 1st International Conference on Computational Models of Argument, 10-12 Sep 2006, Liverpool, UK.. pp. 183-194. Frontiers in Artificial Intelligence and Applications 144. IOS Press. ISSN 0922-6389 ISBN 1-58603-652-1
Verbree, A.T. and Rienks, R.J. and Heylen, D.K.J. (2006) Dialogue-act tagging using smart feature selection: results on multiple corpora. In: First International IEEE Workshop on Spoken Language Technology SLT 2006, 10-13 Dec 2006, Palm Beach, Aruba. pp. 70-73. IEEE Computer Society. ISBN 1-4244-0873-3

2005

Bui, T.D. and Heylen, D.K.J. and Nijholt, A. and Poel, M. (2005) On combining the facial movements of a talking head. In: Proceedings Measuring Behavior 2005, 5th International Conference on Methods and Techniques in Behavioral Research, Wageningen. pp. 19-22. Noldus Information Technology. ISBN 90-74821-71-5
van Dijk, E.M.A.G. and Nijholt, A. and Heylen, D.K.J. (2005) Annotating and measuring meeting behavior. In: Proceedings of Measuring Behavior 2005, the 5th International Conference on Methods and Techniques in Behavioral Research. pp. 135-136. Noldus Information Technology. ISBN 90-74821-71-5
Ghijsen, M. and Heylen, D.K.J. and Nijholt, A. and op den Akker, H.J.A. (2005) Facial Affect Displays during Tutoring Sessions. In: Presented at Affective Interactions: The Computer in the Affective Loop. Workshop at IUI 2005: International Conference on Intelligent User Interfaces, San Diego, CA, USA. ISBN not assigned
Heylen, D.K.J. (2005) Challenges Ahead: Head movements and other social acts during conversations. In: Proceedings of the Joint Symposium on Virtual Social Agents. pp. 45-52. The Society for the Study of Artificial Intelligence and the Simulation of Behaviour. ISBN 1-902956-49-2
Heylen, D.K.J. (2005) A closer look at gaze. In: Creating Bonds with Embodied Conversational Agents. pp. 3-9. University of Utrecht. ISBN not assigned
Heylen, D.K.J. and van Es, I. and Nijholt, A. and van Dijk, E.M.A.G. (2005) Controlling the Gaze of Conversational Agents. In: Natural, Intelligent and Effective Interaction in Multimodal Dialogue Systems. Kluwer Academic Publishers, pp. 245-262. ISBN 1-4020-3932-8
Heylen, D.K.J. and Ghijsen, M. and Nijholt, A. and op den Akker, H.J.A. (2005) Facial Signs of Affect During Tutoring Sessions. In: Affective Computing and Intelligent Interaction - First International Conference, ACII 2005, Beijing, China. pp. 24-31. Lecture notes in Computer Science 3748. Springer Verlag. ISBN 3-540-29621-2
Heylen, D.K.J. and Marsella, S.C. (2005) Theme Preface: Mind Minding Agents. In: Proceedings of the Joint Symposium on Virtual Social Agents. pp. 153-154. The Society for the Study of Artificial Intelligence and the simulation of behavior. ISBN 1-902956-49-2
Heylen, D.K.J. and Nijholt, A. and op den Akker, H.J.A. (2005) Affect in Tutoring Dialogues. Applied Artificial Intelligence (special issue on Educational Agents - Beyond Virtual Tutors), 19 (3-4). pp. 287-310. ISSN 0883-9514 *** ISI Impact 0,563 ***
Oinonen, K.M. and Theune, M. and Nijholt, A. and Heylen, D.K.J. (2005) Getting the story right: making computer-generated stories more entertaining. In: International Conference on INtelligent TEchnologies for interactive enterTAINment (INTETAIN 2005), Madonna di Campiglio, Italy. pp. 267-271. Lecture Notes in Computer Science 3814. Springer-Verlag. ISSN 0302-9743 ISBN 3-540-30509-2
Poppe, R.W. and Heylen, D.K.J. and Nijholt, A. and Poel, M. (2005) Towards real-time body pose estimation for presenters in meeting environments. In: Proceedings of the International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision'2005 (WSCG'2005). pp. 41-44. Science Press. ISBN 80-903100-9-5
Reidsma, D. and op den Akker, H.J.A. and Rienks, R.J. and Poppe, R.W. and Nijholt, A. and Heylen, D.K.J. and Zwiers, J. (2005) Virtual Meeting Rooms: From Observation to Simulation. In: Proceedings Social Intelligence Design 2005. Stanford University.
Rienks, R.J. and Heylen, D.K.J. and van der Weijden, E. (2005) Argument Diagramming of Meeting Conversations. In: Multimodal Multiparty Meeting Processing, Workshop at the 7th International Conference on Multimodal Interfaces (ICMI). pp. 85-92. ISBN not assigned
Rienks, R.J. and Poppe, R.W. and Nijholt, A. and Heylen, D.K.J. and Jovanović, N. (2005) Multi-party Interaction in a Virtual Meeting Room. In: Proceedings of Measuring Behavior 2005, the 5th International Conference on Methods and Techniques in Behavioral Research. pp. 141-144. Noldus Information Technology. ISBN 90-74821-71-5
Theune, M. and Heylen, D.K.J. and Nijholt, A. (2005) Generating Embodied Information Presentations. In: Multimodal Intelligent Information Presentation. Kluwer Academic Publishers, pp. 47-69. ISBN 978-1-4020-3049-9

2004

Bui, T.D. and Heylen, D.K.J. and Nijholt, A. (2004) Building embodied agents that experience and express emotions. In: Proceedings 17th annual conference on Computer Animation and Social Agents (CASA2004), 7-9 July 2004, Geneva, Switzerland. pp. 27-34. Computer Graphics Society.
Bui, T.D. and Heylen, D.K.J. and Nijholt, A. (2004) Combination of facial movements on a 3D talking head. In: Proceedings Computer Graphics International 2004 (CGI 2004), 16-19 June 2004, Crete, Greece. pp. 284-291. IEEE Computer Society. ISSN 1530-1052 ISBN 0-7695-2171-1
Heylen, D.K.J. and Vissers, M. and op den Akker, H.J.A. and Nijholt, A. (2004) Affective feedback in a tutoring system for procedural tasks. In: ISCA Workshop on Affective Dialogue Systems, 14-16 June 2004, Kloster Irsee, Germany. pp. 244-253. Lecture Notes in Computer Science 3068. Springer Verlag. ISBN 3-540-22143-3
Nijholt, A. and op den Akker, H.J.A. and Heylen, D.K.J. (2004) Meetings and meeting modeling in smart surroundings. In: Social Intelligence Design. Proceedings third international workshop, Enschede. pp. 145-158. CTIT-Series WP-04-02. Centre for Telematics and Information Technology University of Twente. ISBN 90-75296-12-6
Poel, M. and op den Akker, H.J.A. and Heylen, D.K.J. and Nijholt, A. (2004) Emotion based Agent Architectures for Tutoring Systems: The INES Architecture. In: Cybernetics and Systems 2004. Workshop on Affective Computational Entities (ACE 2004), 13-16 April 2004, Vienna, Austria. pp. 663-667. Austria Society of Cybernetic Studies. ISBN 3 85206 169 5
Theune, M. and Rensen, S. and op den Akker, H.J.A. and Heylen, D.K.J. and Nijholt, A. (2004) Emotional characters for automatic plot creation. In: TIDSE 2004: Technologies for Interactive Digital Storytelling and Entertainment, 24-26 June 2004, Darmstadt, Germany. pp. 95-100. Lecture Notes in Computer Science 3105. Springer Verlag. ISSN 0302-9743 ISBN 3-540-22283-9

2003

Bui, T.D. and Heylen, D.K.J. and Nijholt, A. (2003) Improvements on a simple muscle-based 3D face for realistic facial expressions. In: Proceedings 16th International Conference on Computer Animation and Social Agents (CASA'2003), 7-9 May 2003, New Brunswick, USA. pp. 33-40. IEEE Computer Society. ISBN 0-7695-1934-2
Bui, T.D. and Heylen, D.K.J. and Nijholt, A. and Poel, M. (2003) Exporting vector muscles for facial animation. In: Smart Graphics 2003. Third International Symposium, 2-4 July 2003, Heidelberg, Germany. pp. 251-260. Lecture Notes in Computer Science 2733. Springer Verlag. ISBN 3-540-40557-7
Bui, T.H. and Heylen, D.K.J. and Poel, M. and Nijholt, A. (2003) Automatic face morphing for transferring facial animation. In: Proceedings of the 6th IASTED International Conference on Computers, Graphics, and Imaging (CGIM 2003), 13-16 August 2003, Honolulu, Hawai, USA. pp. 19-24. ACTA Press. ISBN 0-88986-376-8
Burghouts, G.J. and Heylen, D.K.J. and Poel, M. and op den Akker, H.J.A. and Nijholt, A. (2003) An Action Selection Architecture for an Emotional Agent. In: Recent Advances in Artificial Intelligence. Proceedings of the 16th International FLAIRS, 12-14 May 2003, St. Augustine, Florida. pp. 293-297. AAAI Press. ISBN 978-1-57735-177-1
Heylen, D.K.J. and Nijholt, A. and op den Akker, H.J.A. and Vissers, M. (2003) Socially Intelligent Tutor Agents. In: Proceedings Intelligent Virtual Agents (IVA 2003), 15-17 September 2003, Kloster Irsee, Germany. pp. 341-347. Lecture Notes in Artificial Intelligence 2792. Springer Verlag. ISBN 3-540-20003-7
Heylen, D.K.J. and Nijholt, A. and Stronks, B. and van der Vet, P.E. (2003) Designing friends. In: Proceedings Social Intelligence Design (SID 2003), 6-8 July 2003, London, UK. Royal Holloway University of London.
Hospers, M. and Kroezen, E. and Nijholt, A. and op den Akker, H.J.A. and Heylen, D.K.J. (2003) An Agent-based Intelligent Tutoring System for Nurse Education. Technical Report TR-CTIT-03-18, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Hospers, M. and Kroezen, E. and Nijholt, A. and op den Akker, H.J.A. and Heylen, D.K.J. (2003) Developing a Generic Agent-based Intelligent Tutoring System. In: 3rd IEEE International Conference on Advanced Learning Technologies (ICALT 2002), 9-12 July 2003, Athens, Greece. pp. 443-443. IEEE Computer Society. ISBN 0-7695-1967-9
Hospers, M. and Kroezen, E. and Nijholt, A. and op den Akker, H.J.A. and Heylen, D.K.J. (2003) An agent-based intelligent tutoring system for nurse education. In: Applications of Software Agent Technology in the Health Care Domain. Whitestein Series in Software Agent Technologies. Birkhauser Publishing Ltd, Basel, Switzerland, pp. 143-159. ISBN 978-3-7643-2662-3
Nijholt, A. and Scollo, G. and Heylen, D.K.J. (2003) Algebraic methods in language processing: Editorial. Theoretical Computer Science, 293 (2). pp. 237-241. ISSN 0304-3975 *** ISI Impact 0,838 ***
Theune, M. and Faas, S. and Heylen, D.K.J. and Nijholt, A. (2003) The virtual storyteller: Story creation by intelligent agents. In: TIDSE 2003: Technologies for Interactive Digital Storytelling and Entertainment, 24-26 March 2003, Darmstadt, Germany. pp. 204-215. Fraunhofer IRB Verlag. ISBN 3-8167-6276-X

2002

Bui, T.D. and Heylen, D.K.J. and Poel, M. and Nijholt, A. (2002) ParleE: An adaptive plan-based event appraisal model of emotions. In: KI 2002: Advances in Artificial Intelligence, 16-20 September 2002, Aachen, Germany. pp. 129-143. Lecture Notes in Computer Science 2479. Springer Verlag. ISBN 3-540-44185-9
van Es, I. and Heylen, D.K.J. and van Dijk, E.M.A.G. and Nijholt, A. (2002) Making Agents Gaze Naturally. Does it work? In: Proceedings AVI 2002: Advanced Visual Interfaces, 22-24 May 2002, Trento, Italy. pp. 357-358. ITC/irst. ISBN 1-58113-537-8
van Es, I. and Heylen, D.K.J. and van Dijk, E.M.A.G. and Nijholt, A. (2002) Gaze Behavior of Talking Faces Makes a Difference. In: Proceedings CHI 2002: Changing the World, Changing Ourselves, 20-25 April 2002, Minneapolis, USA. pp. 734-735. ACM Press. ISBN 1-58113-454-1
Heylen, D.K.J. and van Es, I. and Nijholt, A. and van Dijk, E.M.A.G. (2002) Experimenting with the Gaze of a Conversational Agent. In: Proceedings International CLASS Workshop on Natural, Intelligent and Effective Interaction in Multimodal Dialogue Systems, 28-29 June 2002, Copenhagen, Denmark. pp. 93-100. EU CLASS.
Nijholt, A. and Heylen, D.K.J. (2002) Multimodal communication in inhabited virtual environments. International journal of speech technology, 5 (4). pp. 343-354. ISSN 1381-2416
Stronks, B. and Nijholt, A. and van der Vet, P.E. and Heylen, D.K.J. (2002) Designing for friendship: Becoming friends with your ECA. In: Proceedings Embodied conversational agents - let's specify and evaluate them!, 15 July 2002, Bologna, Italy. pp. 91-96. AMAAS.
Stronks, B. and Nijholt, A. and van der Vet, P.E. and Heylen, D.K.J. (2002) Friendship Relations with Embodied Conversational Agents: Integrating Social Psychology in ECA Design. In: Proc. CHI 02 Workshop Philosophy and Design of Socially Adept Technologies. Report NRC 44918. Minneapolis, USA, 21 April 2002, Minneapolis, USA. pp. 25-28. Report NRC 44918. National Research Council Canada. ISBN not assigned
Theune, M. and Faas, S. and Nijholt, A. and Heylen, D.K.J. (2002) The Virtual Storyteller. ACM SIGGROUP Bulletin, 23 (2). pp. 20-21. ISSN not assigned

2001

Bui, T.D. and Heylen, D.K.J. and Poel, M. and Nijholt, A. (2001) Generation of facial expressions from emotion using a fuzzy rule based system. In: Proceedings 14th Australian Joint Conference on Artificial Intelligence (AI 2001), 4-8 December 2001, Adelaide, Australia. pp. 83-94. Lecture Notes in Artificial Intelligence 2256. Springer Verlag. ISBN 3-540-42960-3
Heylen, D.K.J. and Nijholt, A. (2001) Designing and Implementing Embodied Agents: Learning from Experience. In: Proceedings Multimodal Communication and Context in Embodied Agents. Workshop at 5th International Conference on Autonomous Agents (Agents 2001), 28 May 2001, Montreal. pp. 77-82. AMAAS.
Heylen, D.K.J. and Nijholt, A. and Poel, M. (2001) Embodied agents in virtual environments: The Aveiro project. In: Proceedings European Symposium on Intelligent Technologies, Hybrid Systems and their implementation on Smart Adaptive Systems. Also: Electronic proceedings Eunite 2001, CD-Rom of the European Network on Intelligent Technologies for Smart Adaptive Systems, 13-14 December 2001, Tenerife, Spain. NoE Eunite. ISBN 3-89653-916-7

2000

Nijholt, A. and Heylen, D.K.J. and Vertegaal, R.P.H. (2000) Inhabited interfaces: Attentive conversational agents that help. In: Proceedings 3rd International Conference on Disability, Virtual Reality and Associated Technologies - ICDVRAT 2000, 23-25 September 2000, Alghero, Italy. pp. 225-231. University of Reading. ISBN 0-7049-11-42-6