Rieks op den Akker

PUBLICATIONS (111) as AUTHOR:[Assistent-Promotor] 

2016

Book Chapters

H.J.A. op den Akker, R. Klaassen and A. Nijholt Virtual coaches for healthy lifestyle. pp. 121-149. In Toward Robotic Socially Believable Behaving Systems - Volume II: Modeling Social Signals, A, Esposito and L.C. Jain (eds), Springer Verlag, Berlin, Germany, 2016 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

R. Klaassen, H.J.A. op den Akker, P. Di Bitonto, G.J. van der Burg, K. Bul and P. Kato PERGAMON: A serious gaming and digital coaching platform supporting patients and healthcare professionals . in Int’l Conference on ENTERprise Information Systems/International Conference on Project MANagement/International Conference on Health and Social Care Information Systems and Technologies, CENTERIS/ProjMAN/HCist 2016; Book of industry papers and abstr, J.E.Q. Varajão, M.M. Cruz-Cunha, R. Martinho, R. Rijo, N. Bjørn-Andersen, R. Turner and D. Alves (eds), volume 100, SciKA, Portugal, pp. 261-266, 2016 [pdf] [bibTeX] [e-prints] 

2015

Journal Papers

H. op den Akker, M. Cabrita, H.J.A. op den Akker, V.M. Jones and H.J. Hermens Tailored motivational message generation: A model and practical framework for real-time physical activity coaching. Journal of Biomedical Informatics, 55:104-115, 2015 [pdf] [bibTeX] [e-prints] 

M. Bruijnes, H.J.A. op den Akker, S. Spitters, T.J.M. Sanders and Q. Fu The recognition of acted interpersonal stance in police interrogations and the influence of actor proficiency . Journal on multimodal user interfaces, pages 1-24, 2015 [pdf] [bibTeX] [e-prints] 

Book Chapters

M. Bruijnes, J.M. Linssen, H.J.A. op den Akker, M. Theune, S. Wapperom, C. Broekema and D.K.J. Heylen Social Behaviour in Police Interviews: Relating Data to Theories. pp. 317-347. In Conflict and Multimodal Communication, F. D’Errico, I. Poggi, A. Vinciarelli and L. Vincze (eds), Springer Verlag, London, 2015 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H.J.A. op den Akker What do care robots reveal about technology?. in Proceedings of the 1st international conference on social robots in therapy and education, NewFriends 2015, Windesheim Flevoland, Almere, The Netherlands, pp. 82-83, 2015 [pdf] [bibTeX] [e-prints] 

M. Bruijnes, H.J.A. op den Akker, A. Hartholt and D.K.J. Heylen Virtual Suspect William. in Proceedings of the 15th International Conference on Intelligent Virtual Agents, IVA 2015, Lecture Notes in Computer Science, volume 9238, Springer Verlag, Switzerland, pp. 67-76, 2015 [pdf] [bibTeX] [e-prints] 

2014

Journal Papers

T. Visser, D. Traum, D. DeVault and H.J.A. op den Akker A model for incremental grounding in spoken dialogue systems. Journal on Multimodal User Interfaces, 8(1):61-73, 2014 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

M. Bruijnes, S. Wapperom, H.J.A. op den Akker and D.K.J. Heylen A Method to Evaluate Response Models. in Proceedings of the 14th International Conference on Intelligent Virtual Agents, IVA 2014, T. Bickmore, S. Marcella and C. Sidner (eds), Lecture Notes in Computer Science, volume 8637, Springer International Publishing, Switzerland, pp. 67-70, 2014 [pdf] [bibTeX] [e-prints] 

M. Bruijnes, S. Wapperom, H.J.A. op den Akker and D.K.J. Heylen A Virtual Suspect Agent’s Response Model. in Fourteenth International Conference on Intelligent Virtual Agents (IVA 2014); Proceedings of the Workshop on Affective Agents, L. Ring, Y. Leite and J. Dias (eds), Gaips Intelligent Agents and Synthetic Characters Group, Porto Salvo, Portugal, pp. 17-24, 2014 [pdf] [bibTeX] [e-prints] 

O. Kulyk, H.J.A. op den Akker, R. Klaassen and J.E.W.C. van Gemert-Pijnen Let us Get Real! An Integrated Approach for Virtual Coaching and Real-time Activity Monitoring in Lifestyle Change Support Systems. in Proceedings of the Sixth International Conference on eHealth, Telemedicine, and Social Medicine, eTELEMED 2014, International Academy, Research and Industry Association, Red Hook, NY, USA, pp. 211-216, 2014 [pdf] [bibTeX] [e-prints] 

R Peters, M. Bruijnes and H.J.A. op den Akker How Turn-Taking Influences the Perception of a Suspect in Police Interviews. in Creating the Difference - Proceedings of Chi Sparks 2014, J.P. van Leeuwen, P.J. Stappers, M.H. Lamers and M.J.M.R. Thissen (eds), The Hague University of Applied Sciences and CHI Nederland, The Netherlands, pp. 86-89, 2014 [pdf] [bibTeX] [e-prints] 

2013

Journal Papers

H.J.A. op den Akker, M. Bruijnes, R.M. Peters and T. Krikke Interpersonal stance in police interviews: content analysis. Computational Linguistics in the Netherlands Journal, 3:193-216, 2013 [pdf] [bibTeX] [e-prints] 

R. Klaassen, J. Hendrix, D. Reidsma, H.J.A. op den Akker, E.M.A.G. van Dijk and H. op den Akker Elckerlyc goes mobile - Enabling natural interaction in mobile user interfaces. International Journal on Advances in Telecommunications, 6(1 & 2):45-56, 2013 [pdf] [bibTeX] [e-prints] 

R. Klaassen, H.J.A. op den Akker, T. Lavrysen and S. van Wissen User preferences for multi-device context-aware feedback in a digital coaching system. Journal on Multimodal User Interfaces, pages 21, 2013 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H. op den Akker, R. Klaassen, H.J.A. op den Akker, V.M. Jones and H.J. Hermens Opportunities for smart & tailored activity coaching. in Proceedings of the 26th IEEE International Symposium on Computer-Based Medical Systems (CBMS2013), IEEE Computer Society, USA, pp. 546-547, 2013 [pdf] [bibTeX] [e-prints] 

F. Amirabdollahian, H.J.A. op den Akker, S. Bedaf, R. Bormann, H. Draper, G.J. Gelderblom, C. Gutierrez Ruiz, D. Hewson, I. Iacono, K.L. Koay, B. Krose, P. Marti, H. Prevot-Huille, U. Reiser, J. Saunders, T. Sorell and K. Dautenhahn ACCOMPANY: ACceptable robotiCs COMPanions for AgeiNg Years: multidimensional aspects of human-system interactions. in The 6th International Conference on Human System Interaction (HSI 2013), IEEE Computer Society, USA, pp. 570-577, 2013 [pdf] [bibTeX] [e-prints] 

M. Bruijnes, J. Kolkmeier, H.J.A. op den Akker, J.M. Linssen, M. Theune and D.K.J. Heylen Keeping up stories: design considerations for a police interview training game. in Proceedings of the Social Believability in Games Workshop (SBG2013), Centre for Telematics and Information Technology, University of Twente , Enschede, The Netherlands, pp. 14, 2013 [pdf] [bibTeX] [e-prints] 

R. Klaassen, H.J.A. op den Akker and A. Nijholt Digital Lifestyle Coaches on the Move. in Proceedings Thirteenth International Symposium on Social Communication, Leonel Ruiz Miyares, Maria Alvarez Rosa, Silva Munoz Alvarado and Alex Munoz Alvarado (eds), Actualizaciones en Comunicación Social, volume Vol. I, Centro de Linguistica Aplicada, Santiago de Cuba, pp. 338-344, 2013 [pdf] [bibTeX] [e-prints] 

R. Klaassen, H.J.A. op den Akker and H. op den Akker Feedback presentation for mobile personalised digital physical activity coaching platforms. in Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA 2013), ACM, New York, pp. 8, 2013 [pdf] [bibTeX] [e-prints] 

S.J.I.M. Spitters, G.M.A. Sanders, H.J.A. op den Akker and M. Bruijnes The recognition of acted interpersonal stance in police interrogations. in Proceedings of the 4th IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2013, IEEE Hungary Section, IEEE Joint Chapter of IES and RAS, Hungary , Hungary, pp. 6, 2013 [pdf] [bibTeX] [e-prints] 

D.M. Vyas, E. Keijl, H.J.A. op den Akker, A. Nijholt and G.C. van der Veer Geo-locked photo sharing on mobile devices. in CHI ’13 Extended Abstracts on Human Factors in Computing Systems (CHI EA ’13)., ACM, New York, pp. 1407-1412, 2013 [pdf] [bibTeX] [e-prints] 

Reports

E. Keijl, R. Klaassen and H.J.A. op den Akker The influence of locative media on social information sharing: a review. Technical Report, TR-CTIT-13-05, Enschede, Centre for Telematics and Information Technology, University of Twente, Pages: 33, 2013 [pdf] [bibTeX] [e-prints] 

2012

Book Chapters

H.J.A. op den Akker, D. Gatica Perez and D.K.J. Heylen Multi-modal analysis of small-group conversational dynamics. pp. 155-169. In Multimodal Signal Processing, S. Renals, H. Bourlard, J. Carletta and A. Popescu-Belis (eds), Cambridge University Press, New York, 2012 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

S.T. Boerema, R. Klaassen, H.J.A. op den Akker and H.J. Hermens Glanceability Evaluation of a Physical Activity Feedback System for Office Workers. in Proceedings of EHST 2012: the 6th International Symposium on eHealth Services and Technologies, SciTePress - Science and Technology Publications, pp. 52-57, 2012 [pdf] [bibTeX] [e-prints] 

R. Klaassen, J. Hendrix, D. Reidsma and H.J.A. op den Akker Elckerlyc goes mobile: enabling technology for ECAs in mobile applications. in The Sixth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies, XPS (Xpert Publishing Services), pp. 41-47, 2012 [pdf] [bibTeX] [e-prints] 

R. Klaassen and H.J.A. op den Akker Inter-usability and the Presentation of Multi-modal Feedback for Physical Activity and Diabetic Type II Patients. in Proceedings of the 8th International Conference on Methods and Techniques in Behavioral Research, Measuring Behavior 2012, Noldus Information Technology, Wageningen, pp. 115-117, 2012 [pdf] [bibTeX] [e-prints] 

T. Visser, D. Traum, D. DeVault and H.J.A. op den Akker Toward a Model for Incremental Grounding in Spoken Dialogue Systems. in Joint Proceedings of the 2012 IVA Workshops, Otto von Guericke University Magdeburg, Magdeburg, Germany, pp. 101-108, 2012 [pdf] [bibTeX] [e-prints] 

Reports

H.J.A. op den Akker and M. Bruijnes Computational models of social and emotional turn-taking for embodied conversational agents: a review. Technical Report, TR-CTIT-12-13, Enschede, Centre for Telematics and Information Technology, University of Twente, Pages: 62, 2012 [pdf] [bibTeX] [e-prints] 

H.J.A. op den Akker and C.G. Bijron Wat beleeft een robot eigenlijk? Aantekeningen over de beleving en het gebruik van technologie. Technical Report, TR-CTIT-12-14, Enschede, Centre for Telematics and Information Technology, University of Twente, Pages: 20, 2012 [pdf] [bibTeX] [e-prints] 

2011

Journal Papers

D.K.J. Heylen, H.J.A. op den Akker, M. ter Maat, P. Petta, S. Rank, D. Reidsma and J. Zwiers On the nature of engineering social artificial companions. Applied Artificial Intelligence, 25(6):549-574, 2011 [pdf] [bibTeX] [e-prints] 

Book Chapters

J. Dral, D.K.J. Heylen and H.J.A. op den Akker Detecting Uncertainty in Spoken Dialogues: An explorative research for the automatic detection of speaker uncertainty by using prosodic markers. pp. 67-77. In Affective Computing and Sentiment Analysis, Kurshid Ahmad (eds), Springer Verlag, London, 2011 [pdf] [bibTeX] [e-prints] 

D.H.W. Hofs, B.W. van Schooten and H.J.A. op den Akker The IMIX Demonstrator: an Information Search Assistant for the Medical Domain. pp. 11-21. In Interactive Multi-modal Question-Answering, A. van den Bosch and G. Bouma (eds), Springer-Verlag , Berlin Heidelberg, 2011 [pdf] [bibTeX] [e-prints] 

B.W. van Schooten and H.J.A. op den Akker Vidiam: Corpus-based Development of a Dialogue Manager for Multimodal Question Answering. pp. 25-54. In Interactive Multi-Modal Question Answering, A. van den Bosch and G. Bouma (eds), Springer Verlag, Berlin, Heidelberg, 2011 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

E.M.A.G. van Dijk, J. Zwiers, H.J.A. op den Akker, O. Kulyk, G.H.W. Hondorp, D.H.W. Hofs and A. Nijholt Conveying Directional Gaze Cues to Support Remote Participation in Hybrid Meetings. in Third COST 2102 International Training School, A. Esposito, A.M. Esposito, R. Martone, V.C. Müller and G. Scarpetta (eds), Lecture Notes in Computer Science , volume 6456, Springer Verlag, London, pp. 425-441, 2011 [pdf] [bibTeX] [e-prints] 

M. Theune, R. Boer Rookhuiszen, H.J.A. op den Akker and H. Geerlings Generating varied narrative probability exercises. in Proceedings of the 6th Workshop on Innovative Use of NLP for Building Educational Applications (BEA-6) at ACL-HLT 2011, Association for Computational Linguistics, pp. 20-29, 2011 [pdf] [bibTeX] [e-prints] 

W.K. Wieringa, H. op den Akker, V.M. Jones, H.J.A. op den Akker and H.J. Hermens Ontology-Based Generation of Dynamic Feedback on Physical Activity. in 13th International Conference on Artificial Intelligence in Medicine, AIME 2011, Lecture Notes in Artificial Intelligence, volume 6747, Springer Verlag, London, pp. 55-59, 2011 [pdf] [bibTeX] [e-prints] 

Reports

H.J.A. op den Akker, R. Klaassen, T. Lavrysen, G. Geleijnse, A.T. van Halteren, H. Schwietert and M. Van der Hout A Personal Context-Aware Multi-Device Coaching Service that Supports a Healthy Lifestyle. Technical Report, TR-CTIT-12-15, Enschede, Centre for Telematics and Information Technology, University of Twente, Pages: 6, 2011 [pdf] [bibTeX] [e-prints] 

2010

Journal Papers

H.J.A. op den Akker, J. Zwiers, G.H.W. Hondorp, E.M.A.G. van Dijk, O. Kulyk, D.H.W. Hofs, A. Nijholt and D. Reidsma Engagement and Floor Control in Hybrid Meetings. AMI Newsletter, V. Devanthéry (eds), 20(20):6-6, 2010 [pdf] [bibTeX] [e-prints] 

D.H.W. Hofs, M. Theune and H.J.A. op den Akker Natural interaction with a virtual guide in a virtual environment: A multimodal dialogue system. Journal on Multimodal User Interfaces, 3(1-2):141-153, 2010 [pdf] [bibTeX] [e-prints] 

A.S. Tigelaar, H.J.A. op den Akker and D. Hiemstra Automatic summarisation of discussion fora. Natural language engineering, 16(02):161-192, 2010 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H.J.A. op den Akker, M. Theune, K.P. Truong and I.A. de Kok The Organisation of Floor in Meetings and the Relation with Speaker Addressee Patterns. in Proceedings of the 2nd International Workshop on Social Signal Processing, SSPW ’10, ACM, New York, pp. 35-40, 2010 [pdf] [bibTeX] [e-prints] 

Y. Cao, F. van der Sluis, M. Theune, H.J.A. op den Akker and A. Nijholt Evaluating Informative Auditory and Tactile Cues for In-Vehicle Information Systems. in Proceedings of the 2nd International Conference on Automotive User Interfaces and Interactive Vehicular Applications (AutomotiveUI 2010), ACM, New York, pp. 102-109, 2010 [pdf] [bibTeX] [e-prints] 

2009

Journal Papers

B.W. van Schooten, H.J.A. op den Akker, S. Rosset, O. Galibert, A. Max and G. Illouz Follow-up question handling in the IMIX and Ritel systems: A comparative study. Natural Language Engineering, N. Webb and B. Webber (eds), 15(1):97-118, 2009 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H.J.A. op den Akker and D. Traum A comparison of addressee detection methods for multiparty conversations. in Proceedings of DiaHolmia, 13th Workshop on the Semantics and Pragmatics of Dialogue, KTH Stockholm, Stockholm, pp. 99-106, 2009 [pdf] [bibTeX] [e-prints] 

H. op den Akker and H.J.A. op den Akker Are you being addressed?: real-time addressee detection to support remote participants in hybrid meetings. in Proceedings of the SIGDIAL 2009 Conference, The association of computational linguistics, Stroudsburg, pp. 21-28, 2009 [pdf] [bibTeX] [e-prints] 

H.J.A. op den Akker, D.H.W. Hofs, G.H.W. Hondorp, H. op den Akker, J. Zwiers and A. Nijholt Supporting Engagement and Floor Control in Hybrid Meetings. in Cross-Modal Analysis of Speech, Gestures, Gaze and Facial Expressions, A.M. Esposito and R. Vich (eds), Lecture Notes in Computer Science, volume 5641, Springer Verlag, Berlin, pp. 276-290, 2009 [pdf] [bibTeX] [e-prints] 

D.K.J. Heylen, M. Theune, H.J.A. op den Akker and A. Nijholt Social Agents: the first generations. in Proceedings 2009 International Workshop on Social Signals Processing, M. Pantic and A. Vinciarello (eds), ACII 2009 Proceedings, volume 2, IEEE Computer Society, Los Alamitos, pp. 114-120, 2009 [pdf] [bibTeX] [e-prints] 

R.B. Raine, H.J.A. op den Akker, Zhiqiang Cai, A.C. Graesser and D.S. McNamara Synthesis and Analysis in Artificial Intelligence: The Role of Theory in Agent Implementation. in Proceedings of the Eighth IEEE International Conference on Dependable, Autonomic and Secure Computing (DASC 2009), IEEE Computer Society, USA, pp. 266-269, 2009 [pdf] [bibTeX] [e-prints] 

D. Reidsma, D.K.J. Heylen and H.J.A. op den Akker On the Contextual Analysis of Agreement Scores . in Multimodal Corpora -- From Models of Natural Interaction to Systems and Applications, J.-C. Martin, P. Paggio, M. Kipp and D.K.J. Heylen (eds), Lecture Notes in Computer Science, volume 5509, Springer Verlag, Berlin, pp. 122-137, 2009 [pdf] [bibTeX] [e-prints] 

A.S. Tigelaar, H.J.A. op den Akker and F. Verhoeven Matching Queries to Frequently Asked Questions: Search Functionality for the MRSA Web-Portal. in Proceedings of the 9th Dutch-Belgian Information Retrieval Workshop, CTIT Workshop Proceedings, Centre for Telematics and Information Technology University of Twente, Enschede, pp. 26-33, 2009 [pdf] [bibTeX] [e-prints] 

2008

Book Chapters

Z.M. Ruttkay and H.J.A. op den Akker Affordances and Cognitive Walkthrough for Analyzing Human-Virtual Human Interaction. pp. 94-110. In Verbal and Nonverbal Features of Human-Human and Human-Machine Interaction, A.M. Esposito, N.G. Bourbakis, N. Avouris and I. Hatzilygeroudis (eds), Springer Verlag, London, 2008 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H.J.A. op den Akker and M. Theune How Do I Address You? Modelling addressing behavior based on an analysis of a multi-modal corpora of conversational discourse. in Proceedings of the AISB 2008 Symposium on Multimodal Output Generation (MOG 2008), Society for the Study of Artificial Intelligence and the Simulation of Behaviour (AISB), pp. 10-17, 2008 [pdf] [bibTeX] [e-prints] 

J. Dral, D.K.J. Heylen and H.J.A. op den Akker Detecting uncertainty in spoken dialogues: the use of prosodic markers. in Sentiment analysis: emotion, metaphor, ontology and terminology, K. Ahmad (eds), ELRA, Paris, pp. 72-78, 2008 [pdf] [bibTeX] [e-prints] 

D.H.W. Hofs, M. Theune and H.J.A. op den Akker Multimodal Interaction with a Virtual Guide. in Proceedings of the Twentieth Belgian-Netherlands Conference on Artificial Intelligence, BNAIC 2008, University of Twente, Enschede, pp. 391-392, 2008 [pdf] [bibTeX] [e-prints] 

A. Nijholt, D. Reidsma, H. van Welbergen, H.J.A. op den Akker and Z.M. Ruttkay Mutually coordinated anticipatory multimodal interaction. in Verbal and Nonverbal Features of Human-Human and Human-Machine Interaction, A.M. Esposito, N.G. Bourbakis, N. Avouris and I. Hatzilygeroudis (eds), Lecture Notes in Computer Science, volume 5042, Springer Verlag, Berlin, pp. 70-89, 2008 [pdf] [bibTeX] [e-prints] 

M. Poel, E. Boschman and H.J.A. op den Akker A Neural Network Based Dutch Part of Speech Tagger. in Proceedings of the twentieth Belgian-Dutch Artificial Intelligence Conference (BNAIC 2008)., A. Nijholt, M. Pantic, M. Poel and G.H.W. Hondorp (eds), Twente University Press, Enschede, pp. 217-224, 2008 [pdf] [bibTeX] [e-prints] 

D. Reidsma and H.J.A. op den Akker Exploiting `Subjective' Annotations. in Coling 2008: Proceedings of the workshop on Human Judgements in Computational Linguistics, R. Artstein, G. Boleda, F. Keller and S. Schulte im Walde (eds), Coling 2008 Organizing Committee, pp. 8-16, 2008 [pdf] [bibTeX] [e-prints] 

D. Reidsma, D.K.J. Heylen and H.J.A. op den Akker On the Contextual Analysis of Agreement Scores. in Proceedings of the LREC Workshop on Multimodal Corpora, J.-C. Martin, P. Paggio, M. Kipp and D.K.J. Heylen (eds), ELRA, Paris, France, pp. 52-55, 2008 [pdf] [bibTeX] [e-prints] 

D. Reidsma and H.J.A. op den Akker Subjective Machine Classifiers. in BNAIC 2008, Proceedings 20th Belgian-Netherlands Conference on Artificial Intelligence, Boekelo, Netherlands, A. Nijholt, M. Pantic, M. Poel and G.H.W. Hondorp (eds), University of Twente, Enschede, the Netherlands, pp. 359-360, 2008 [pdf] [bibTeX] [e-prints] 

2007

Journal Papers

S. Keizer and H.J.A. op den Akker Dialogue act recognition under uncertainty using Bayesian networks. Natural Language Engineering, 13(04):287-315, 2007 [pdf] [bibTeX] [e-prints] 

D. Reidsma, H.J.A. op den Akker, R.J. Rienks, R.W. Poppe, A. Nijholt, D.K.J. Heylen and J. Zwiers Virtual Meeting Rooms: From Observation to Simulation. AI and Society, R. Fruchter, T. Nishida and D. Rosenberg (eds), 22(2):133-144, 2007 [pdf] [bibTeX] [e-prints] 

Book Chapters

H.J.A. op den Akker and D.K.J. Heylen Feedback Loops in Communication and Human Computing. pp. 215-233. In Artifical Intelligence for Human Computing, M. Pantic, A. Pentland, A. Nijholt and Thomas S. Huang (eds), Springer Verlag, Berlin, 2007 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

D.K.J. Heylen and H.J.A. op den Akker Computing Backchannel Distributions in Multi-Party Conversations. in Proceedings of the ACL Workshop on Embodied Language Processing, J. Cassell and D.K.J. Heylen (eds), volume W07-19, Association of Computational Linguistics, Prague, Czech Republic, pp. 17-24, 2007 [pdf] [bibTeX] [e-prints] 

M. Poel, L. Stegeman and H.J.A. op den Akker A Support Vector Machine Approach to Dutch Part-of-Speech Tagging. in Advances in Intelligent Data Analysis VII. Proceedings of the 7th International Symposium on Intelligent Data Analysis, IDA 2007, M.R. Berthold, J. Shawe-Taylor and N. Lavrac (eds), Lecture Notes in Computer Science, volume 4723, Springer Verlag, London, pp. 274-283, 2007 [pdf] [bibTeX] [e-prints] 

B.W. van Schooten, S. Rosset, O. Galibert, A. Max, H.J.A. op den Akker and G. Illouz Handling speech input in the Ritel QA dialogue system. in Interspeech 2007, International Speech Communication Association, Antwerp, pp. 126-129, 2007 [pdf] [bibTeX] [e-prints] 

B.W. van Schooten and H.J.A. op den Akker Multimodal follow-up questions to multimodal answers in a QA system. in Tenth international symposium on social communication, Centro de Linguistica Aplicada, Santiago de Cuba, pp. 469-473, 2007 [pdf] [bibTeX] [e-prints] 

M. Theune, B.W. van Schooten, H.J.A. op den Akker, W.E. Bosma, D.H.W. Hofs, A. Nijholt, E.J. Krahmer, C.M.J. van Hooijdonk and E.C. Marsi Questions, pictures, answers: introducing pictures in question-answering systems. in ACTAS-1 of X Symposio Internacional de Comunicacion Social, L. Ruiz Miyares, A. Munoz Alvarado and C. Alvarez Moreno (eds), Centro de Linguistica Aplicada, Santiago de Cuba, pp. 450-463, 2007 [pdf] [bibTeX] [e-prints] 

2006

Journal Papers

H.J.A. op den Akker and B.W. van Schooten Vervolguitingen in vraag-antwoorddialoogsystemen. DIXIT, tijdschrift over toegepaste taal- en spraaktechnologie, 4(1):10-11, 2006 [bibTeX] [e-prints] 

N. Jovanovic, H.J.A. op den Akker and A. Nijholt A corpus for studying addressing behaviour in multi-party dialogues. Language Resources and Evaluation, L. Dybkjær and M. Wolfgang (eds), 40(1):5-23, 2006 [pdf] [bibTeX] [e-prints] 

A. Nijholt, H.J.A. op den Akker and D.K.J. Heylen Meetings and Meeting Modeling in Smart Environments. AI and Society, 20(2):202-220, 2006 [pdf] [bibTeX] [e-prints] 

B.W. van Schooten and H.J.A. op den Akker Follow-up utterances in QA dialogue. Traitement Automatique des Langues, 46(3):181-206, 2006 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

N. Jovanovic, H.J.A. op den Akker and A. Nijholt Addressee Identification In Face-to-Face Meetings. in Proceedings of 11th Conference of the European Chapter of the ACL (EACL), D. McCarthy and S. Wintner (eds), Association for Computational Linguistics, Pennsylvania, USA, pp. 169-176, 2006 [pdf] [pdf] [bibTeX] [e-prints] 

2005

Journal Papers

D.K.J. Heylen, A. Nijholt and H.J.A. op den Akker Affect in Tutoring Dialogues. Applied Artificial Intelligence (special issue on Educational Agents - Beyond Virtual Tutors), 19(3-4):287-310, 2005 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H.J.A. op den Akker, H.C. Bunt, S. Keizer and B.W. van Schooten From question answering to spoken dialogue - towards an information search assistant for interactive multimodal information extraction. in Proc. 9th European Conference on Speech Communication and Technology (Interspeech 2005), European Speech Communication Association (ESCA) / CEP Consultants, Edinburgh, pp. 2793-2796, 2005 [pdf] [bibTeX] [e-prints] 

M. Ghijsen, D.K.J. Heylen, A. Nijholt and H.J.A. op den Akker 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, 2005 [pdf] [bibTeX] [e-prints] 

D.K.J. Heylen, M. Ghijsen, A. Nijholt and H.J.A. op den Akker Facial Signs of Affect During Tutoring Sessions. in Affective Computing and Intelligent Interaction - First International Conference, ACII 2005, J. Tao, T. Tan and R. Picard (eds), Lecture notes in Computer Science, volume 3748, Springer Verlag, Berlin, pp. 24-31, 2005 [pdf] [bibTeX] [e-prints] 

N. Jovanović, H.J.A. op den Akker and A. Nijholt A corpus for studying addressing behavior in multi-party dialogues. in Proceedings 6th SIGdial Workshop on Discourse and Dialogue, L. Dybkjær and W. Minker (eds), pp. 107-116, 2005 [pdf] [bibTeX] [e-prints] 

N. Jovanović, H.J.A. op den Akker and A. Nijholt Addressee Identification in Meetings. in CHI 2005 Workshop on the virtuality continuum revisited, 2005 [bibTeX] [e-prints] 

D. Reidsma, H.J.A. op den Akker, R.J. Rienks, R.W. Poppe, A. Nijholt, D.K.J. Heylen and J. Zwiers Virtual Meeting Rooms: From Observation to Simulation. in Proceedings Social Intelligence Design 2005, R. Fruchter (eds), Stanford University, pp. 15, 2005 [pdf] [pdf] [bibTeX] [e-prints] 

2004

Contributions to Proceedings

D.K.J. Heylen, M. Vissers, H.J.A. op den Akker and A. Nijholt Affective feedback in a tutoring system for procedural tasks. in ISCA Workshop on Affective Dialogue Systems, E. Andre, L. Dybkjær, W. Minker and P. Heisterkamp (eds), Lecture Notes in Computer Science, volume 3068, Springer Verlag, Berlin, pp. 244-253, 2004 [pdf] [bibTeX] [e-prints] 

N. Jovanovic and H.J.A. op den Akker Towards automatic addressee identification in multi-party dialogues. in Proceedings of the 5th SIGdial Workshop on Discourse and Dialogue, Association for Computational Linguistics, Pennsylvania, USA, pp. 89-92, 2004 [pdf] [pdf] [bibTeX] [e-prints] 

M.P. Mulder, A. Nijholt, H.J.A. op den Akker, M.J. den Uyl and P. Terpstra A Lexical, Grammatical Implementation of Affect. in 7th International Conference on Text, Speech & Dialogue (TSD 2004), P. Sojka, I. Kopeček and K. Pala (eds), Lecture Notes in Computer Science, volume 3206, Springer Verlag, Heidelberg, pp. 171-177, 2004 [pdf] [bibTeX] [e-prints] 

A. Nijholt, H.J.A. op den Akker and D.K.J. Heylen Meetings and meeting modeling in smart surroundings. in Social Intelligence Design. Proceedings third international workshop, A. Nijholt and T. Nishida (eds), CTIT-Series, volume WP-04-02, CTIT, Enschede, pp. 145-158, 2004 [pdf] [bibTeX] [e-prints] 

M. Poel, H.J.A. op den Akker, D.K.J. Heylen and A. Nijholt Emotion based Agent Architectures for Tutoring Systems: The INES Architecture. in Cybernetics and Systems 2004. Workshop on Affective Computational Entities (ACE 2004), R. Trappl (eds), Austria Society of Cybernetic Studies, Vienna, pp. 663-667, 2004 [pdf] [bibTeX] [e-prints] 

M. Theune, S. Rensen, H.J.A. op den Akker, D.K.J. Heylen and A. Nijholt Emotional characters for automatic plot creation. in TIDSE 2004: Technologies for Interactive Digital Storytelling and Entertainment, S. Göbel, U. Spierling, A. Hoffmann, I. Iurgel, O. Schneider, J. Dechau and A. Feix (eds), Lecture Notes in Computer Science, volume 3105, Springer Verlag, Berlin, pp. 95-100, 2004 [pdf] [pdf] [bibTeX] [e-prints] 

S. Zwarts, A. Nijholt, H.J.A. op den Akker and M. Poel CBR in Dependency-based Machine Translation. in Proceedings of Konvens 2004, E. Buchberger (eds), Schriftenreihe der Oesterreichischen Gesellschaft fuer Artificial Intelligence, volume 5, Oesterreichischen Gesellschaft fuer Artificial Intelligence, Vienna, pp. 205-208, 2004 [pdf] [bibTeX] [e-prints] 

2003

Journal Papers

E.M.A.G. van Dijk, H.J.A. op den Akker, A. Nijholt and J. Zwiers Navigation assistance in virtual worlds. Informing Science, Special Series on Community Informatics, E. Rathswohl and C. Weiner (eds), 6:115-125, 2003 [pdf] [bibTeX] [e-prints] 

Book Chapters

M. Hospers, E. Kroezen, A. Nijholt, H.J.A. op den Akker and D.K.J. Heylen An agent-based intelligent tutoring system for nurse education. pp. 143-159. In Applications of Software Agent Technology in the Health Care Domain, J. Nealon and A. Moreno (eds), Birkhauser Publishing Ltd, Basel, Switzerland, 2003 [bibTeX] [e-prints] 

Contributions to Proceedings

G.J. Burghouts, H.J.A. op den Akker, D.K.J. Heylen, M. Poel and A. Nijholt An Action Selection Architecture for an Emotional Agent. in Recent Advances in Artificial Intelligence. Proceedings of the 16th International FLAIRS, I. Russell and S. Haller (eds), AAAI Press, Menlo Park, CA, USA, pp. 293-297, 2003 [pdf] [bibTeX] [e-prints] 

D.K.J. Heylen, A. Nijholt, H.J.A. op den Akker and M. Vissers Socially Intelligent Tutor Agents. in Proceedings Intelligent Virtual Agents (IVA 2003), R.S. Aylett, D. Ballin and T. Rist (eds), Lecture Notes in Artificial Intelligence, volume 2792, Springer Verlag, Berlin, pp. 341-347, 2003 [pdf] [bibTeX] [e-prints] 

D.H.W. Hofs, H.J.A. op den Akker and A. Nijholt A generic architecture and dialogue model for multimodal interaction. in Proceedings of the 1st Nordic Symposium on Multimodal Communication, P. Paggio, K. Jokinen and A. Jönsson (eds), volume 1, CST Publication, Center for Sprogteknologi, Copenhagen, pp. 79-91, 2003 [pdf] [bibTeX] [e-prints] 

D.H.W. Hofs, H.J.A. op den Akker, A. Nijholt and G.H.W. Hondorp A multimodal interaction system for navigation. in Proceedings Diabrück 2003, 7th Workshop on the Semantics and Pragmatics of Dialogue, I. Kruijff-Korbayova and C. Kosny (eds), Saarland University, Saarbruecken, pp. 183-184, 2003 [pdf] [bibTeX] [e-prints] 

M. Hospers, E. Kroezen, A. Nijholt, H.J.A. op den Akker and D.K.J. Heylen Developing a Generic Agent-based Intelligent Tutoring System. in 3rd IEEE International Conference on Advanced Learning Technologies (ICALT 2002), V. Devedzic, J.M. Spector, D.G. Sampson and X. Kinshuk (eds), IEEE Computer Society, Los Alamitos, pp. 443-443, 2003 [pdf] [bibTeX] [e-prints] 

A. Nijholt, H.J.A. op den Akker and F.M.G. de Jong Language interpretation and generation for football commentary. in ACTAS-1: VIII Symposio Social, L. Ruiz Miyares, C.E. Alvarez and M.R. Alvarez Silva (eds), Centro de Linguistica Aplicade, Santiago de Cuba, pp. 594-599, 2003 [pdf] [bibTeX] [e-prints] 

Reports

M. Hospers, E. Kroezen, A. Nijholt, H.J.A. op den Akker and D.K.J. Heylen An Agent-based Intelligent Tutoring System for Nurse Education. Technical Report, TR-CTIT-03-18, Enschede, Centre for Telematics and Information Technology University of Twente, 2003 [pdf] [bibTeX] [e-prints] 

A. Nijholt, H.J.A. op den Akker, F.M.G. de Jong and H. de Jong Language Interpretation and Generation for Football Commentary. Technical Report, TR-CTIT-03-01, Enschede, Centre for Telematics and Information Technology University of Twente, 2003 [pdf] [bibTeX] [e-prints] 

2002

Journal Papers

A. Nijholt, J. van Luin and H.J.A. op den Akker Een navigatie-agent in virtual reality. I/O Vivat, 2(5):36-39, 2002 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

H.J.A. op den Akker, M. Hospers, E. Kroezen, A. Nijholt and D.H. Lie A rule-based reference resolution method for Dutch discourse. in Proceedings 2002 Symposium on Reference Resolution in Natural Language Processing, S. Harabagiu and A. Ferrandez (eds), University of Alicante, Alicante, pp. 59-66, 2002 [pdf] [bibTeX] [e-prints] 

S. Keizer, H.J.A. op den Akker and A. Nijholt Dialogue Act Recognition with Bayesian Networks for Dutch Dialogues. in Proceedings 3rd SIGdial Workshop on Discourse and Dialogue, K. Jokinen and S. McRoy (eds), ACL SIGDIAL, Philadelphia, pp. 88-94, 2002 [pdf] [bibTeX] [e-prints] 

M. Poel, H.J.A. op den Akker, A. Nijholt and A.J. van Kesteren Learning emotions in virtual environments. in Cybernetics and Systems 2002, R. Trappl (eds), Austrian Society for Cybernetic Studies, Vienna, pp. 751-755, 2002 [pdf] [bibTeX] [e-prints] 

2001

Journal Papers

E.M.A.G. van Dijk, A. Nijholt, H.J.A. op den Akker and J. Zwiers Persoonlijke assistentie in virtuele werelden. Informatie, 43:42-46, 2001 [pdf] [bibTeX] [e-prints] 

Contributions to Proceedings

E.M.A.G. van Dijk, H.J.A. op den Akker, A. Nijholt and J. Zwiers Navigation assistance in virtual worlds. in E-Proceedings 2001 Informing Science Conference, A. Hariger (eds), Informing Science Institute (ISI), Santa Rosa, CA, pp. 1-9, 2001 [pdf] [bibTeX] [e-prints] 

A. Egges, A. Nijholt and H.J.A. op den Akker Dialogs with BDP agents in virtual environments. in Knowledge and Reasoning in Practical Dialogue Systems. Working Notes, IJCAI-2001, K. Jokinen (eds), ACM IJCAI, New York, pp. 29-35, 2001 [pdf] [bibTeX] [e-prints] 

J. van Luin, H.J.A. op den Akker and A. Nijholt A dialogue agent for navigation support in virtual reality. in Conf. on Human factors in computing systems (CHI), ACM Press, New York, pp. 117-118, 2001 [bibTeX] [e-prints] 

J. van Luin, A. Nijholt and H.J.A. op den Akker Natural Language Navigation Support in Virtual Reality. in Proceedings International Conference on Augmented, Virtual Environments and Three-Dimensional Imaging (ICAV3D), V. Giagourta and M.G. Strintzis (eds), CERTH, Thessaloniki, pp. 263-266, 2001 [pdf] [bibTeX] [e-prints] 

A. Nijholt, A. Egges, H.J.A. op den Akker and J. Zwiers Animated BDP agents in virtual environments. in Proceedings of the Belgium-Netherlands Artificial Intelligence Conference (BNAIC'01), B.J.A. Kröse, M. de Rijke, G. Schreiber and M. van Someren (eds), Universiteit van Amsterdam, Amsterdam, pp. 329-336, 2001 [pdf] [bibTeX] [e-prints] 

2000

Contributions to Proceedings

H.J.A. op den Akker and A. Nijholt Dialogues for Embodied Agents in Virtual Environments. in Natural Language Processing - NLP 2000, Second International Conference, D.N. Christodoulakis (eds), Lecture Notes in Artificial Intelligence, volume 1835, Springer Verlag, Berlin, pp. 358-369, 2000 [pdf] [bibTeX] [e-prints] 

A.J. van Kesteren, H.J.A. op den Akker, M. Poel and A. Nijholt Simulation of emotions of agents in virtual environments using neural networks. in Learning to Behave: Internalising Knowledge, K. Jokinen, D.K.J. Heylen and A. Nijholt (eds), Twente Workshop on Language Technology, volume 18, University of Twente, Enschede, pp. 137-147, 2000 [pdf] [bibTeX] [e-prints] 

J. Zwiers, E.M.A.G. van Dijk, A. Nijholt and H.J.A. op den Akker Design issues for navigation and assistance agents in virtual environments. in Learning to Behave: Interacting Agents, A. Nijholt, D.K.J. Heylen and K. Jokinen (eds), Twente Workshop on Language Technology, University of Twente, Enschede, pp. 119-132, 2000 [bibTeX] [e-prints] 

1998

Contributions to Proceedings

D.H. Lie, J. Hulstijn, H.J.A. op den Akker and A. Nijholt A Transformational Approach to NL Understanding in Dialogue Systems. in Proceedings NLP and Industrial Applications, C. Moghrabi (eds), Université de Moncton, Moncton, Canada, pp. 163-168, 1998 [pdf] [bibTeX] [e-prints] 

PUBLICATIONS (6) as ASSISTENT PROMOTOR[Top] [Author] 

2016

Dissertations (Assistent Promotor)

M. Bruijnes Believable Suspect Agents: Response and Interpersonal Style Selection for an Artificial Suspect . PhD Thesis, University of Twente, October 07 2016, Centre for Telematics and Information Technology, University of Twente, Enschede, Pages: 186, Promotors: D.K.J. Heylen, Ass. Promotors: H.J.A. op den Akker, 2016 [pdf] [bibTeX] [e-prints] 

2015

Dissertations (Assistent Promotor)

R. Klaassen HCI Perspectives on Behavior Change Support Systems. PhD Thesis, University of Twente, February 27 2015, Centre for Telematics and Information Technology, University of Twente, Enschede, Pages: 179, Promotors: A. Nijholt, Ass. Promotors: H.J.A. op den Akker, 2015 [pdf] [bibTeX] [e-prints] 

2008

Dissertations (Assistent Promotor)

D. Reidsma Annotations and Subjective Machines of Annotators, Embodied Agents, Users, and Other Humans. PhD Thesis, University of Twente, October 09 2008, Twente University Press, Enschede, Pages: 98, Promotors: A. Nijholt, Ass. Promotors: H.J.A. op den Akker, 2008 [pdf] [bibTeX] [e-prints] 

2007

Dissertations (Assistent Promotor)

N. Jovanovic To Whom It May Concern - Addressee Identification in Face-to-Face Meetings . PhD Thesis, University of Twente, March 14 2007, Enschede, The Netherlands, Pages: 187, Promotors: A. Nijholt, Ass. Promotors: H.J.A. op den Akker, 2007 [pdf] [bibTeX] [e-prints] 

2003

Dissertations (Assistent Promotor)

S. Keizer Reasoning under Uncertainty in Natural Language Dialogue using Bayesian Networks. PhD Thesis, University of Twente, Enschede, September 03 2003, Twente University Press, Enschede, the Netherlands, Pages: 166, Promotors: A. Nijholt, Ass. Promotors: H.J.A. op den Akker, 2003 [pdf] [bibTeX] [e-prints] 

1999

Dissertations (Assistent Promotor)

H.W.L. ter Doest Towards Probabilistic Unification-Based Parsing. PhD Thesis, University of Twente, February 12 1999, Neslia Paniculata, Enschede, Pages: 134, Promotors: A. Nijholt, Ass. Promotors: H.J.A. op den Akker, 1999 [pdf] [bibTeX] [e-prints]