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Classification: HMI-VRG: Virtual Reality and Graphics
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2014

van Delden, R.W. and Moreno Celleri, A.M. and Ramos, C. and Carrasco, G. and Reidsma, D. and Poppe, R.W. (2014) Hang in There: A Novel Body-Centric Interactive Playground. In: Innovative and Creative Developments in Multimodal Interaction Systems. IFIP Advances in Information and Communication Technology. Springer Verlag, London, pp. 160-178. ISSN 1868-4238 ISBN 978-3-642-55142-0
Schouten, Th.E. and van den Broek, E.L. (2014) Fast Exact Euclidean Distance (FEED): A new class of adaptable distance transforms. IEEE transactions on pattern analysis and machine intelligence, 36 (11). pp. 2159-2172. ISSN 0162-8828 *** ISI Impact 6,077 ***

2012

van den Broek, E.L. (2012) Review: Learning how to match fresco fragments. Computing Reviews. CR139957. ISSN 1530-6585

2011

van den Broek, E.L. and Schouten, Th.E. (2011) Distance transforms: Academics versus industry. Recent Patents on Computer Science, 4 (1). pp. 1-15. ISSN 1874-4796
van den Broek, E.L. and Schouten, Th.E. (2011) Modeling Internal Radiation Therapy. In: Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms, 26-29 Jan 2011, Rome, Italy. pp. 228-233. INSTICC Press. ISBN 978-989-8425-36-2
Meijer, F. (2011) Spatial cognition in synthetic environments. PhD thesis, University of Twente. ISBN 978-90-365-3178-8

2010

van den Broek, E.L. (2010) Review: Handbook of texture analysis by M. Mirmehdi, X. Xie, and J. Suri (Eds.). Computing Reviews. CR138053. ISSN 1530-6585
van den Broek, E.L. (2010) Review: Open-ended objects: A tool for brainstorming. Computing Reviews. CR138560. ISSN 1530-6585
van den Broek, E.L. (2010) Review: Designing for the invisible: User-centered design of infrastructure awareness systems. Computing Reviews. CR138618. ISSN 1530-6585
Meijer, F. and van den Broek, E.L. (2010) Representing 3D virtual objects: interaction between visuo-spatial ability and type of exploration. Vision Research, 50 (6). pp. 630-635. ISSN 0042-6989 *** ISI Impact 1,776 ***
Meijer, F. and van den Broek, E.L. and Schouten, Th.E. and Damgrave, R.G.J. and de Ridder, H. (2010) Synthetic Environments as visualization method for product design. In: Human Vision and Electronic Imaging XV, 18-21 Jan 2010, San Francisco, CA, USA. 752712. Proceedings of SPIE-IS&T Electronic Imaging 7527. SPIE-IS&T. ISSN 0277-786X ISBN 9780819479204
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 0,561 ***
Schouten, Th.E. and van den Broek, E.L. (2010) Computer controlled evaluation of binary images. Patent N2005197 (Application).

2009

van den Broek, E.L. (2009) Review of "M. Mirmehdi, X. Xie, J. Suri (eds.), Handbook of texture analysis". IAPR Newsletter, 31 (4). pp. 14-15.
Landman, R.B. and van den Broek, E.L. and Gieskes, J.F.B. (2009) Creating shared mental models: The support of visual language. In: Proceedings of the 6th International Conference on Cooperative Design, Visualization, and Engineering (CDVE 2009), September 20-23, 2009, Luxembourg, Luxembourg. pp. 161-168. Lecture Notes in Computer Science 5738. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-04264-5

2008

van den Broek, E.L. (2008) Empathic surroundings. (Invited) In: Abstracts of International Workshop on Psycho-Physiological Measurements in Virtual Reality Applications, 16 Jan 2008, Zurich, Switzerland. 2. ETH Zurich. ISBN not assigned
van den Broek, E.L. and Meijer, F. and Miedema, J. and Wang, Huaxin and van der Voort, M.C. and Vergeest, J.S.M. (2008) Synthetic Environments for Cooperative Product Design. In: Proceedings of the 5th International Conference on Cooperative Design, Visualization, and Engineering (CDVE 2008), 21-25 Sept 2008, Calvià, Mallorca, Spain. pp. 1-10. Lecture Notes in Computer Science 5220. Springer Verlag. ISSN 0302-9743 ISBN 978-3-540-88010-3
Cobb, S.C. and D'Cruz, M. and Day, A. and David, P. and Gardeux, F. and van den Broek, E.L. and van der Voort, M.C. and Meijer, F. and Izkara, J.L. and Mavrikios, D. (2008) How is VR used to support training in industry? The INTUITION network of excellence working group on education and training. In: 10th Virtual Reality International Conference, VRIC 2008, 09-13 Apr 2008, Laval, France. pp. 75-83. Laval Virtual. ISBN 9782951573079
Meijer, F. and van den Broek, E.L. and Schouten, Th.E. (2008) The impact of interactive manipulation on the recognition of objects. In: Human Vision and Electronic Imaging XIII, 27-31 Jan 2008, San Jose, CA, USA. 68060H. Proceedings of SPIE 6806. SPIE - The International Society for Optical Engineering. ISSN 0277-786X ISBN 978-0-81946-978-6
Meijer, F. and van den Broek, E.L. and Verwey, W.B. (2008) Interactive exploration of 3D objects and individual differences in visuo-spatial abilities. In: Dag van de Perceptie, 20 June 2008, Soesterberg, Nederland. 11. TNO. ISBN not assigned
Ruttkay, Z.M. (2008) A Sangaku Revived. In: Bridges Leeuwarden, Mathematics, Music, Art, Architecture, Culture Conference Proceedings 2008, 24-28 July 2008, Leeuwarden, The Netherlands. pp. 155-162. Tarquin Books. ISSN 1099-6702 ISBN 9780966520194
Schouten, Th.E. and van den Broek, E.L. (2008) Inverse Perspective Transformation for Video Surveillance. In: Computational Imaging VI, 28-29 Jan 2008, San Jose, CA, USA. 681415. Proceedings of SPIE 6814. SPIE - The International Society for Optical Engineering. ISSN 0277-786X ISBN 9780819469861
Schouten, Th.E. and van den Broek, E.L. (2008) Fast multi-class distance transforms for video surveillance. In: Proceedings of SPIE (Real-Time Image Processing), 28-29 Jan 2008, San Jose, CA, USA. 681107. Proceedings of SPIE 6811. SPIE - The International Society for Optical Engineering. ISSN 0277-786X ISBN 9780819469830
Wang, Huaxin and Meijer, F. and Miedema, J. and van den Broek, E.L. and van der Voort, M.C. and Vergeest, J.S.M. (2008) Applicability of synthetic environments for product design. In: Proceedings of the 7th International Conference on Integrated Design and Manufacturing in Mechanical Engineering (IDMME) - Virtual Concept, 8-10 Oct 2008, Beijing, China. P56. Estia School of Engineering. ISBN not assigned
Wang, Huaxin and Vergeest, J.S.M. and Miedema, J. and Meijer, F. and van der Voort, M.C. and van den Broek, E.L. (2008) Synthetic Environment as a Communication Tool for Dynamic Prototyping. In: Design Methods for Industrial Practice: Proceedings of the 6th International Seminar and Workshop Engineering Design in Integrated Product Development (EDIProD), 10-12 Sep 2008, Gdynia - Jurata, Poland. pp. 211-219. Oficyna Wydawnicza Uniwersytetu. ISBN 9788374811897
van Welbergen, H. and Ruttkay, Z.M. and Varga, B. (2008) Informed Use of Motion Synthesis Methods. In: Motion in Games. Lecture Notes in Computer Science 5277. Springer Verlag, Berlin, pp. 132-143. ISBN 978-3-540-89219-9

2007

Miedema, J. and Meijer, F. and Wang, Huaxin and van der Voort, M.C. and van den Broek, E.L. and Vergeest, J.S.M. (2007) Synthetic Environments as design tool - A case study. In: Proceedings of the 4th International INTUITION Conference "Virtual Reality and Virtual Environments", 04-05 Oct 2007, Athens, Greece. pp. 239-240. Institute of Communication and Computer Systems, National Technical University of Athens. ISBN 978-960-254-665-9
Pasch, M. and Poppe, R.W. (2007) Person or Puppet? The Role of Stimulus Realism in Attributing Emotion to Static Body Postures. In: Proceedings of the Conference on Affective Computing and Intelligent Interaction (ACII), 12-14 September 2007, Lisbon, Portugal. pp. 83-94. Lecture Notes in Computer Science 4738. Springer Verlag. ISBN 978-3-540-74888-5
Poppe, R.W. (2007) Vision-based human motion analysis: An overview. Computer Vision and Image Understanding, 108 (1-2). pp. 4-18. ISSN 1077-3142 *** ISI Impact 2,134 ***
Poppe, R.W. (2007) Evaluating Example-based Pose Estimation: Experiments on the HumanEva Sets. Technical Report TR-CTIT-07-72, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625

2006

van den Broek, E.L. (2006) Review: Physically large displays improve performance on spatial tasks. ACM Computing Reviews. CR133228. ISSN 1530-6585
Ruttkay, Z.M. and van Welbergen, H. (2006) On the timing of gestures of a Virtual Physiotherapist. In: 3rd Central European Multimedia and Virtual Reality Conference, 6-8 Nov 2006, Eger, Hungary. pp. 219-224. Pannonian University Press. ISBN 963 9495 89 1
Schouten, Th.E. and Kuppens, H.C. and van den Broek, E.L. (2006) Video surveillance using distance maps. In: Real-Time Image Processing, 16-17 Jan 2006, San Jose, CA, USA. pp. 54-65. Proceedings of SPIE 6063. SPIE - The International Society for Optical Engineering. ISSN 0277-786X ISBN 9780819461032
Schouten, Th.E. and Kuppens, H.C. and van den Broek, E.L. (2006) Three Dimensional Fast Exact Euclidean Distance (3D-FEED) Maps. In: Vision Geometry XIV, 17-18 Jan 2006, San Jose, CA, USA. pp. 108-119. Proceedings of SPIE 6066. SPIE - The International Society for Optical Engineering. ISSN 0277-786X ISBN 0-8194-6106-7

2005

van den Broek, E.L. (2005) Review: Reflectance from locally glossy thoroughly pitted surfaces. ACM Computing Reviews. CR132097. ISSN 1530-6585
van den Broek, E.L. and Rikxoort, E.M. (2005) Parallel-Sequential Texture Analysis. In: Proceedings of the Third International Conference on Advances in Pattern Recognition, ICAPR 2005, 22-25 Aug 2005 , Bath, UK. pp. 532-541. Lecture Notes in Computer Science 3687. Springer Verlag. ISSN 0302-9743 ISBN 978-3-540-28833-6
van den Broek, E.L. and Schouten, Th.E. and Kisters, P.M.F. and Kuppens, H. (2005) Weighted distance mapping (WDM). In: Proceedings of the IEE International Conference on Visual Information Engineering (VIE 2005): Convergence in Graphics and Vision, 4-6 April 2005, Glasgow, Scotland, United Kingdom. pp. 157-164. The Institution of Electrical Engineers, IEE. ISBN 0-86341-507-5
van Doesburg, W.A. and Heuvelink, A. and van den Broek, E.L. (2005) TACOP: A Cognitive Agent for a Naval Training Simulation Environment. In: BNAIC 2005 - Proceedings of the Seventeenth Belgium-Netherlands Conference on Artificial Intelligence, 17-18 Oct 2005, Brussels, Belgium. pp. 395-396. Koninklijke Vlaamse Academie van Belgïe voor Wetenschappen en Kunsten. ISSN 1568-7805
Nijholt, A. (2005) Gulliver project: performers and visitors. In: Digital Applications for Cultural and Heritage Institutions. Ashgate Publishing Ltd, Hampshire (UK), pp. 285-292. ISBN 0-7546-3359-4
Nijholt, A. and Kole, S. and Zwiers, J. (2005) Multimodal Interaction in a Haptic Environment. In: Proceedings of the First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, Pisa, Italy. pp. 467-470. IEEE Computer Society. ISBN 0-7695-2310-2
Nijholt, A. and Traum, D. (2005) The Virtuality Continuum Revisited. In: Proceedings of the SIGCHI conference on Human factors in Computing Systems (CHI 2005), Extended Abstracts. Portland, Oregon, USA. pp. 2132-2133. ACM Press. ISBN 1-59593-083-3
Schouten, Th.E. and Kuppens, H.C. and van den Broek, E.L. (2005) Timed Fast Exact Euclidean Distance (tFEED) maps. In: Real-Time Imaging IX, 18-20 Jan 2005, San Jose, CA, USA. pp. 52-63. Proceedings of SPIE 5671. SPIE - The International Society for Optical Engineering. ISSN 0277-786X ISBN 0-8194-5644-6
Wassink, I. and van Dijk, E.M.A.G. and Zwiers, J. and Nijholt, A. (2005) Bringing Hollywood to the Driving School: Dynamic Scenario Generation in Simulations and Games. In: INTETAIN 2005, Madonna di Campiglio, Italy. pp. 288-292. Lecture notes in Computer Science 3814 / 2005. Springer-Verlag. ISSN 0302-9743 ISBN 3-540-30509-2

2004

van den Broek, E.L. and Rikxoort, E.M. (2004) Evaluation of color representation for texture analysis. In: Proceedings of the 16th Belgian Dutch Artificial Intelligence Conference (BNAIC 2004), 21-22 Oct 2004, Groningen, The Netherlands. pp. 35-42. University of Groningen. ISSN 1568-7805
Bui, T.D. (2004) Creating Emotions and Facial Expressions for Embodied Agents. PhD thesis, University of Twente. CTIT Ph.D.-thesis series No. 04-63 ISBN 90-75296-10-X
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
Kiss, S. (2004) Web Based VRML Modelling. In: Geometric Modeling: Techniques, Applications, Systems and Tools. Kluwer Academic Publishers, Dordrecht, pp. 256-280. ISBN 1-4020-1817-7
Nijholt, A. (2004) Meetings, Gatherings and Events in Smart Environments. In: ACM SIGGRAPH International Conference on Virtual-Reality Continuum and its Applications in Industry (VRCAI2004), 15-18 June 2004, Singapore. pp. 229-232. ACM Press. ISBN 1-58113-884-9
Reuvekamp, M. and Zwiers, J. and Lammertse, P. (2004) Haptic Water; Haptics on an Animated Surface. In: Proceedings of the 4th International Conference EuroHaptics 2004, 5--7 June 2004, Munchen. pp. 432-435. Technische Universität München. ISBN 3-9809614-0-0
van Schooten, B.W. and Nijholt, A. and van Dijk, E.M.A.G. (2004) A software toolkit for web-based virtual environments based on a shared database. In: Proceedings of the IADIS International Conference WWW/Internet, 6-9 oct 2004, Madrid, Spain. pp. 691-698. IADIS Press. ISBN 972-99353-0-0

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
Kiss, S. (2003) 3D Character Centred Online Editing Modalities for VRML-based Virtual Environments. PhD thesis, University of Twente, Enschede. ISBN 90-75296-07-X
Kiss, S. and Nijholt, A. (2003) Viewpoint Adaptation during Navigation based on Stimuli from the Virtual Environment. In: Web3D 2003 Symposium, 8th International Conference on 3D Web Technology, 19-26 March, Saint Malo, France. pp. 19-26. ACM SIGGRAPH. ISBN 1-58113-644-7
Kiss, S. and Nijholt, A. and Zwiers, J. (2003) Virtual modeling. In: Proceedings Eurographics 2003: Modeling the real world, 1-6 September 2003, Granada, Spain. pp. 81-84. Eurographics Association.
Nijholt, A. (2003) Disappearing computers, social actors and embodied agents. In: 2003 International Conference on CYBERWORLDS, 2-5 December 2003, Singapore. pp. 128-134. IEEE Computer Society. ISBN 0-7695-1922-9
van Schooten, B.W. (2003) Development and Specification of Virtual Environments. PhD thesis, University of Twente. ISBN 90-75296-06-1

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
Kiss, S. (2002) 3D Character Modeling in Virtual Reality. In: Proc. 6th IEEE International Conference on Information Visualization ( IV2002), July 10-12, 2002, London, UK. pp. 541-548. ISBN 0-7695-1656-4
Nijholt, A. (2002) Issues in multimodal nonverbal communication and emotion in embodied (conversational) agents. In: Concepts and Applications of Systemics, Cybernetics and Informatics, 14-18 July 2002, Orlando, Florida. pp. 208-214. International Institute of Informatics and Systemics. ISBN 980-07-8150-1
Nijholt, A. (2002) Gulliver Project: Performers and Visitors. In: Proceedings EVA 2002 Florence: "Electronic Imaging & the Visual Arts", 18-22 March 2002, Florence, Italy. pp. 241-244. Pitagora Editrice Bologna. ISBN 88-371-1312-9
Nijholt, A. (2002) Enabling virtual communities: Gulliver and Aveiro. In: Proc. 4th Workshop on Information and Computer Science (WICS 2002, 17-18 March 2002, Dhahran, Saudi Arabia. pp. 391-400. King Fahd University of Petroleum & Minerals. ISBN 9960-07-187-1
Nijholt, A. and Stuk, M. and Zwiers, J. (2002) The virtual GULLIVER project. In: Cybernetics and Systems 2002, 2-5 April 2002, Vienna, Austria. pp. 878-882. Austrian Society for Cybernetic Studies. ISBN 3-85206-160-1

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
Evers, M.J. and Nijholt, A. (2001) Jacob, an agent for instruction in virtual reality environments. Themes in Education, 2 (1). pp. 15-34. ISSN 1108-5908
Evers, M.J. and Nijholt, A. (2001) Jacob: a web-based learning environment using virtual reality. In: Proceedings 7th annual CTIT workshop Mobile Communications in Perspective, 8 February 2001, Enschede, the Netherlands. pp. 79-81. Centre for Telematics and Information Technology University of Twente. ISBN 90-3651-5467
Kiss, S. (2001) Web Based VRML Modelling. In: Proceedings of the Fifth IEEE International Conference on Information Visualization (IV'01), July 25-27, 2001, London, UK. pp. 612-617. IEEE Computer Society.
Kragtwijk, M. and Nijholt, A. and Zwiers, J. (2001) An animated virtual drummer. In: Proceedings International Conference on Augmented, Virtual Environments and Three-dimensional Imaging (ICAV3D), 30 May-01 June 2001, Mykonos, Greece. pp. 319-322. CERTH.
Kragtwijk, M. and Nijholt, A. and Zwiers, J. (2001) Implementation of a 3D Virtual Drummer. In: Proceedings CAS2001, Eurographics Workshop on Animation and Simulation 2001, 2-3 September 2001, Manchester, UK. pp. 15-26. Springer Verlag. ISBN 3-211-83711-6
Nijholt, A. (2001) Agent Assistance: From Problem Solving to Music Teaching. In: Proceedings Agents and Internet Learning (AIL 2001). Workshop at 5th International Conference on Autonomous Agents (Agents 2001), 28 May 2001, Montreal. pp. 11-13. AMAAS.
Nijholt, A. (2001) Speech, Language and Gaze in Multi-modal Navigation in Virtual Environments. (Invited) In: Proceedings 7th International Symposium on Social Communication, 23-26 January 2001, Santiago de Cuba. pp. 266-271. Centro de Linguistica Aplicada. ISBN 84-7496-848-8
Nijholt, A. (2001) From virtual environment to virtual community. In: New Frontiers in Artificial Intelligence. Joint JSAI 2001 Workshop Post-Proceedings, 21-22 May 2001, Matsue, Japan. pp. 19-26. Lecture Notes in Artificial Intelligence 2253. Springer Verlag. ISSN 0302-9743 ISBN 3-540-43070-9
Nijholt, A. and van Dijk, E.M.A.G. (2001) Agents for navigating virtual reality E-commerce environments. In: Proceedings International NAISO Symposium on Information Science Innovations in E-Business and Beyond (EBB'2001), 17-21 March 2001, Dubai, U.A.E.. pp. 347-353. ICSC Academic Press. ISBN 3-906454-25-8
Nijholt, A. and Zwiers, J. and van Dijk, E.M.A.G. (2001) Maps, agents and dialogue for exploring a virtual world. In: Proceedings 5th World Multiconference on Systemics, Cybernetics and Informatics (SCI 2001) and 7th International Conference on Information Systems Analysis and Synthesis (ISAS 2001), 22-25 July 2001, Orlando. pp. 94-99. International Institute of Informatics and Systemics (IIIS). ISBN 980-07-7548-X
Reidsma, D. and Kragtwijk, M. and Nijholt, A. (2001) Building Huys Hengelo in VRML. In: ICHIM 2001: Cultural Heritage and Technologies in the Third Millennium, 3-7 September 2001, Milan, Italy. pp. 325-332. Archives & Museum Informatics. ISBN 1-885626-24-X

2000

op den Akker, H.J.A. and Nijholt, A. (2000) Dialogues for Embodied Agents in Virtual Environments. In: Natural Language Processing - NLP 2000, Second International Conference, 2-4 June 2000, Patras, Greece. pp. 358-369. Lecture Notes in Artificial Intelligence 1835. Springer Verlag. ISBN 3-540-67605-8
van den Ende, C.W. and Evers, M.J. (2000) Extreme programming: niet revolutionair, wel praktisch. Software release magazine, 5 (4). pp. 36-39.
Nijholt, A. (2000) Multi-Media Access and Presentation in the Twente Virtual Theatre Environment. In: Multimedia '99. Proceedings of the Eurographics Workshop, 7-8 September 1999, Milan, Italy. pp. 205-214. Springer Verlag. ISBN 978-3-211834374
Nijholt, A. (2000) Agent and user inhabited virtual communities: A case study. In: Proceedings Fourth International Conference on Knowledge-Based Intelligent Engineering Systems & Allied Technologies (KES'2000), 30 August - 1 September 2000, Brighton, UK. pp. 337-340. University of Brighton. ISBN 0-7803-6400-7
Nijholt, A. (2000) Agent-supported cooperative learning environments. In: International Workshop on Advanced Learning Technologies (IWALT 2000), 4-6 December 2000, Palmerstone North, New Zealand. pp. 17-18. IEEE Computer Society. ISBN 0-7695-0653-4
Nijholt, A. (2000) Virtual malls for web commerce: Observations and case study. In: Trends in Distributed Systems: Towards a Universal Service Market -- Third International IFIP/GI Working Conference, USM 2000, 12-14 September 2000, Munich, Germany. pp. 326-333. Lecture Notes in Computer Science 1890. Springer Verlag. ISBN 3-540-41024-4
Nijholt, A. (2000) Towards virtual communities on the Web: Actors and audience. In: Proceedings International ICSC Congress Intelligent Systems & Applications (ISA'2000), Volume II, 12-15 December 2000, Wollongong, Australia. pp. 725-731. ICSC Academic Press. ISBN 3-906454-24-X
Nijholt, A. (2000) Virtual Cultural Environments: Exploration of Information. In: Cybernetics and Systems Research 2000, 25-28 April 2000, Vienna, Austria. pp. 530-535. Austrian Society for Cybernetic Studies. ISBN 3-85206-151-2
Nijholt, A. and van Dijk, E.M.A.G. and Donk, O.A. (2000) Specification Techniques for Multi-Modal Dialogues in the U-Wish Project. In: Proceedings joint meeting of the Fourth World Multiconference on Systemics, Cybernetics and Informatics (SCI'00) and the Sixth International Conference on Information Systems Analysis and Synthesis (ISAS'00), 23-26 July 2000, Orlando, USA. pp. 340-345. SCI. ISBN 980-07-6688-X
Nijholt, A. and Hulstijn, J. (2000) Multimodal Interactions with Agents in Virtual Worlds. In: Future Directions for Intelligent Information Systems and Information Science. Studies in Fuzziness and Soft Computing 45. Physica-Verlag, Heidelberg, Germany, pp. 148-173. ISBN 3-7908-1276-5

1999

Nijholt, A. and Donk, O. and van Dijk, E.M.A.G., ed. (1999) Interactions in Virtual Worlds. Twente Workshop on Language Technology (15). University of Twente, Enschede. ISSN 0929-0672
Hulstijn, J. and Hondorp, G.H.W. and Nijholt, A. and van den Berk, M. and van Hessen, A.J. (1999) Dialogues with a Talking face for Web-based Services and Transactions. Technical Report TR-CTIT-99-07, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Nijholt, A. (1999) Commerce and Entertainment in the Twente Virtual Theatre Environment. In: WRV99: II Brasilian Workshop on Virtual Reality, Marilia, Brazil. pp. 102-114. Fundao Euripides de Marilia.
Nijholt, A. (1999) Towards Multi-Modal Interactions in Virtual Environments: A Case Study. (Invited) In: Actas-I, VI Simposio Internacional de Communicacion Social, 25-28 January 1999, Santiago de Cuba, Cuba. pp. 561-568. Centro Linguistica Applicada. ISBN 959-11-0250-X
Nijholt, A. (1999) An agent-based virtual theatre community. In: Local Nets: International Workshop on Community-based Interactive Systems, 20 October 1999, Siena, Italy. pp. 116-133. I3 Esprit.
Nijholt, A. (1999) Access and Exploration of Virtual Reality Interest Communities. In: Fifth International Conference on Information Systems Analysis and Synthesis (ISAS'99), 30 July - August 3 1999, Orlando, USA. pp. 79-86. International Institute of Informatics and Systemics. ISBN 980-07-5919-0
Nijholt, A. and Hulstijn, J. and van Hessen, A.J. (1999) Speech and Language Interaction in a Web Theatre Environment. In: Proceedings Interactive Dialogue in Multi-Modal Systems, 22-25 June 1999, Kloster Irsee, Germany. pp. 129-132. ISCA Archives. ISBN 87-90834-00-3