2009
Geyer, W., Dugan, C., Moore, M. 2009. “Barely “Barely Lit versus Raging Hot” – Do We Need User-Customizable Rating Systems? Submitted to ACM Group’09, (Sanibel Island, Florida, USA, May 10-13, 2009).Chen, J., Geyer, W., Dugan, C., Muller, M., Guy, I. 2009. “Make New Friends, but Keep the Old” – Recommending People on Social Networking Sites. To appear Proceeding of the Twenty-Seventh Annual SIGCHI Conference on Human Factors in Computing Systems (Boston, MA). CHI’09. ACM, New York, NY.
2008
DiMicco, J., Millen, D. R., Geyer, W., Dugan, C., Brownholtz, B., and Muller, M. 2008. Motivations for social networking at work. In Proceedings of the ACM 2008 Conference on Computer Supported Cooperative Work (San Diego, CA, USA, November 08 - 12, 2008). CSCW '08. ACM, New York, NY, 711-720. DOI= http://doi.acm.org/10.1145/1460563.1460674Geyer, W., Dugan, C., Millen, D. R., Muller, M., and Freyne, J. 2008. Recommending topics for self-descriptions in online user profiles. In Proceedings of the 2008 ACM Conference on Recommender Systems (Lausanne, Switzerland, October 23 - 25, 2008). RecSys '08. ACM, New York, NY, 59-66. DOI= http://doi.acm.org/10.1145/1454008.1454019
Vatturi, P. K., Geyer, W., Dugan, C., Muller, M., and Brownholtz, B. 2008. Tag-based filtering for personalized bookmark recommendations. In Proceeding of the 17th ACM Conference on information and Knowledge Management (Napa Valley, California, USA, October 26 - 30, 2008). CIKM '08. ACM, New York, NY, 1395-1396. DOI= http://doi.acm.org/10.1145/1458082.1458297
Dugan, C., Geyer, W., Muller, M., DiMicco, J., Brownholtz, B., and Millen, D. R. 2008. It's all 'about you': diversity in online profiles. In Proceedings of the ACM 2008 Conference on Computer Supported Cooperative Work (San Diego, CA, USA, November 08 - 12, 2008). CSCW '08. ACM, New York, NY, 703-706. DOI= http://doi.acm.org/10.1145/1460563.1460672
Geyer, W., Dugan, C., DiMicco, J., Millen, D. R., Brownholtz, B., and Muller, M. 2008. Use and reuse of shared lists as a social content type. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 - 10, 2008). CHI '08. ACM, New York, NY, 1545-1554. DOI= http://doi.acm.org/10.1145/1357054.1357296
Farzan, R., DiMicco, J., Millen, D. R., Dugan, C., Geyer, W., and Brownholtz, E. 2008. Results from deploying a participation incentive mechanism within the enterprise. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 - 10, 2008). CHI '08. ACM, New York, NY, 563-572. DOI= http://doi.acm.org/10.1145/1357054.1357145
Shen, J., Geyer, W., Muller, M., Dugan, C., Brownholtz, B., and Millen, D. R. 2008. Automatically finding and recommending resources to support knowledge workers' activities. In Proceedings of the 13th international Conference on intelligent User interfaces (Gran Canaria, Spain, January 13 - 16, 2008). IUI '08. ACM, New York, NY, 207-216. DOI= http://doi.acm.org/10.1145/1378773.1378801
Geyer, W., Silva Fihlo, R., Brownholtz, B., Redmiles, D.F. 2008. The Trade-Offs of Blending Synchronous and Asynchronous Communication Services to Support Contextual Collaboration. Journal of Universal Computer Science (J.UCS), Vol. 14, Issue 1, January 1, 2008, 4-26.
2007
Dugan, C., Muller, M., Millen, D. R., Geyer, W., Brownholtz, B., and Moore, M. 2007. The dogear game: a social bookmark recommender system. In Proceedings of the 2007 international ACM Conference on Supporting Group Work (Sanibel Island, Florida, USA, November 04 - 07, 2007). GROUP '07. ACM, New York, NY, 387-390. DOI= http://doi.acm.org/10.1145/1316624.1316683Li, L., Muller, M. J., Geyer, W., Dugan, C., Brownholtz, B., and Millen, D. R. 2007. Predicting individual priorities of shared activities using support vector machines. In Proceedings of the Sixteenth ACM Conference on Conference on information and Knowledge Management (Lisbon, Portugal, November 06 - 10, 2007). CIKM '07. ACM, New York, NY, 515-524. DOI=http://doi.acm.org/10.1145/1321440.1321513
Muller, M.J., Geyer, W., Brownholtz, B., Dugan, C., Millen, D.R., and Wilcox, E. 2007. Tag-Based Metonymic Search in an Activity-Centric Aggregation Service. Proc ECSCW 2007, Limerick, Ireland, September 2007.
Geyer, W., Brownholtz, B., Muller, M., Dugan, C., Wilcox, E., and Millen, D. R. 2007. Malibu personal productivity assistant. In CHI '07 Extended Abstracts on Human Factors in Computing Systems (San Jose, CA, USA, April 28 - May 03, 2007). CHI '07. ACM, New York, NY, 2375-2380. DOI= http://doi.acm.org/10.1145/1240866.1241010.
2006
Geyer, W., Muller, M., Moore, M., Wilcox, E., Cheng, L., Brownholtz, B., Hill, C.R., Millen, D.R. 2006. ActivityExplorer: Activity-Centric Collaboration from Research to Product. IBM Systems Journal – Issue on Business Collaboration, Vol. 45, Number 4, 2006, 713-739.Sen, S., Geyer, W., Muller, M., Moore, M., Brownholtz, B., Wilcox, E., and Millen, D. R. 2006. FeedMe: a collaborative alert filtering system. In Proceedings of the 2006 20th Anniversary Conference on Computer Supported Cooperative Work (Banff, Alberta, Canada, November 04 - 08, 2006). CSCW '06. ACM, New York, NY, 89-98. DOI= http://doi.acm.org/10.1145/1180875.1180890
2005
Geyer, W., Richter, H., Abowd, G. 2005. Towards a Smarter Meeting Record – Capture and Access of Meetings Revisited. Journal on Multimedia Tools and Applications, Volume 27, Number 3 / December 2005, Springer Netherlands, 393-410.Geyer, W., Vogel, J., Cheng, L., Muller, M. 2005. Personal Peer-to-Peer Collaboration based on Shared Objects. Peer to Peer Computing: The Evolution of a Disruptive Technology, edited by Dr. Ramesh Subramanian and Dr. Brian Goodman, IDEA Group Inc.
Muller, Michael J., Minassian, Suzanne O., Geyer, Werner, Millen, David R, Brownholtz, Elizabeth, and Wilcox, E. 2005. Studying Appropriation in Activity-Centric Collaboration. Position paper at ECSCW 2005 workshop on “Supporting Articulation Work: Approaches for the reflective user”. In: International Reports on Socio-Informatics, Volume 2, Issue 2, 2005, IISI – International Institute for Socio-Informatics.
Millen, D. R., Muller, M. J., Geyer, W., Wilcox, E., and Brownholtz, B. 2005. Patterns of media use in an activity-centric collaborative environment. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (Portland, Oregon, USA, April 02 - 07, 2005). CHI '05. ACM, New York, NY, 879-888. DOI= http://doi.acm.org/10.1145/1054972.1055096
2004
Vogel, J., Geyer, W., Cheng, L., Muller, M. 2004. Consistency Control for Synchronous and Asynchronous Collaboration based on Shared Objects and Activities. Journal on CSCW, Special Issue Group 2003, Volume 13, Numbers 5-6 / December, 2004, Springer Netherlands, 573-602.Geyer, W., Witt, A. J., Wilcox, E., Muller, M., Kerr, B., Brownholtz, B., and Millen, D. R. 2004. Chat spaces. In Proceedings of the 5th Conference on Designing interactive Systems: Processes, Practices, Methods, and Techniques (Cambridge, MA, USA, August 01 - 04, 2004). DIS '04. ACM, New York, NY, 333-336. DOI= http://doi.acm.org/10.1145/1013115.1013173
Muller, M. J., Geyer, W., Brownholtz, B., Wilcox, E., and Millen, D. R. 2004. One-hundred days in an activity-centric collaboration environment based on shared objects. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (Vienna, Austria, April 24 - 29, 2004). CHI '04. ACM, New York, NY, 375-382. DOI= http://doi.acm.org/10.1145/985692.985740
Brownholtz, B., Geyer, W., Muller, M. J., Wilcox, E., and Millen, D. R. 2004. Explorations in an activity-centric collaboration environment. In CHI '04 Extended Abstracts on Human Factors in Computing Systems (Vienna, Austria, April 24 - 29, 2004). CHI '04. ACM, New York, NY, 767-768. DOI= http://doi.acm.org/10.1145/985921.985926
2003
Geyer, W., Vogel, J., Cheng, L., and Muller, M. 2003. Supporting activity-centric collaboration through peer-to-peer shared objects. In Proceedings of the 2003 international ACM SIGGROUP Conference on Supporting Group Work (Sanibel Island, Florida, USA, November 09 - 12, 2003). GROUP '03. ACM, New York, NY, 115-124. DOI= http://doi.acm.org/10.1145/958160.958179Geyer, W., Richter, H., Abowd, G. 2003. Making Multimedia Meeting Records More Meaningful. In: Proc. IEEE ICME 2003, International Conference on Multimedia and Expo, Baltimore, MD, July 6-9, 2003.
2002
Geyer, W., Cheng, Li-Te. 2002. Facilitating Emerging Collaboration through Light-weight Information Sharing. In: Conference Supplement CSCW 2002, ACM Conference on Computer-Supported Cooperative Work, New Orleans, Louisiana, USA, November 16 – 20, 2002.2001
Richter, H., Abowd, G., Geyer, W., Fuchs, L., Daijavad, S., Poltrock, S. 2001. Integrating Meeting Capture within a Collaborative Team Environment. In Proc. Ubicomp 2001, ACM Conference on Ubiquitous Computing, Atlanta, GA, USA, September 30 - October 2, 2001.Geyer, W., Richter, H., Fuchs, L., Frauenhofer, T., Daijavad, S., and Poltrock, S. 2001. A team collaboration space supporting capture and access of virtual meetings. In Proceedings of the 2001 international ACM SIGGROUP Conference on Supporting Group Work (Boulder, Colorado, USA, September 30 - October 03, 2001). C. (. Ellis and I. Zigurs, Eds. GROUP '01. ACM, New York, NY, 188-196. DOI= http://doi.acm.org/10.1145/500286.500315
Mauve, M., Scheele, N., Geyer, W. 2001. Enhancing Synchronous Distance Education with Pervasive Devices. In Proc. Informatik 2001 Jahrestagung GI / OCG: Workshop 21 “Virtuelle Lernraeume”, Vienna, Austria, September 25 - 28, 2001.
Fuchs, L., Geyer, W., Richter, H., Poltrock, S., Frauenhofer, T., Daijavad, S. 2001. Enabling Inter-Company Team Collaboration. In Proc. IEEE 10th Intl. Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises, MIT, Cambridge, MA, USA, June 20-22, 2001.
Geyer, W., Daijavad, S., Frauenhofer, T., Richter, H., Fuchs, L., Poltrock, S., Brodie, C., Fin, T.-H., Abowd, G. 2001. Capture and Access of Virtual Meetings in TeamSpace. Referred presentation at IBM Knowledge Management Conference, Zurich, Switzerland, April 25 - 27, 2001.
2000
Frauenhofer, T., Geyer, W. 2000. From Sametime Connect to TeamSpace: Evolution of a Pervasive Collaboration Environment. In Proc. PACT 2000, 1st Pact 2000 Workshop on Ubiquitous Computing, Philadelphia, PA, USA, October 15-19, 2000.Weis, R., Lucks, S., Geyer, W. 2000. Stand der Faktorisierung und noetige Konsequenzen fuer minimale Schluessellaengen (in German). Datenschutz und Datensicherheit, DuD 03/00, Vieweg-Verlag, March 2000.
Vogel, J., Mauve, M., Geyer, W., Hilt, V., and Kuhmünch, C. 2000. A generic late-join service for distributed interactive media. In Proceedings of the Eighth ACM international Conference on Multimedia (Marina del Rey, California, United States). MULTIMEDIA '00. ACM, New York, NY, 259-267. DOI= http://doi.acm.org/10.1145/354384.354500
Weis, R., Vogel, J., Effelsberg, W., Geyer, W., Lucks, S. 2000. How to Make a Digital Whiteboard Secure - Using JAVA-Cards for Multimedia Applications. In Proc of the 7th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services, IDMS 2000, Enschede, Netherlands, October 17-20, 2000.
Geyer, W., Vogel, J., Mauve, M. 2000. An Efficient and Flexible Late Join Algorithm for Shared Whiteboards. In Proc. of the Fifth IEEE International Symposium on Computers and Communications, ISCC'2000, Antibes, France, July 4-6, 2000.
Weis, R., Geyer, W., Kuhmuench, C. 2000. Architectures for Secure Multicast Communication. In Proc. 2nd International SANE Conference, SANE2000, MECC, Maastricht, The Netherlands, May 22 - 25, 2000.
Mauve, M., Hilt, V., Kuhmuench, C., Vogel, J., Effelsberg, W., Geyer, W. 2000. RTP/I - An Application Level Real-Time Protocol for Distributed Interactive Media. Internet Draft, draft-mauve-rtpi-00.txt, March 1, 2000.
Geyer, W., Weis, R. 2000. The Design and the Security Concept of a Collaborative Whiteboard. Computer Communications, Elsevier, Vol. 23, No. 3, February 2000, 233-241.
Hilt, V., Geyer, W., Effelsberg, W. 2000. A New Paradigm for the Recording of Shared Whiteboard Streams. In Proc. MMCN 2000, SPIE Multimedia Computing and Networking, San Jose, CA, January 2000.
1999
Geyer, W. 1999. Das digital lecture board - Konzeption, Design und Entwicklung eines Whiteboards fuer synchrones Teleteaching (in German). Reihe DISDBIS, Bd. 58, ISBN 3-89601-458-7, Infix-Verlag, St. Augustin, Germany, 1999.Weis, R., Geyer, W. 1999. Cryptographic Concepts for Online-Feedback in Teleteaching Applications. In Proc. NLT’99, International Conference on New Learning Technology, Bern, Switzerland, August 1999, 86-93.
Geyer, W., Mauve, M. 1999. Integrating Support for Collaboration-unaware VRML Models into Cooperative Applications. In Proc. ICMCS’99, IEEE International Conference on Multimedia Computing and Systems, Florence, Italy, June 1999, 655-660.
Biersack, E., Geyer, W. 1999. Synchronized delivery and playout of distributed stored multimedia streams. Multimedia Systems, ACM Press/Springer, Vol. 7, No. 1, January 1999, 70-90.
1998
Geyer, W., Eckert, A., Effelsberg, W. 1998. Multimedia in der Hochschullehre - TeleTeaching an den Universitaeten Mannheim und Heidelberg (in German). Studieren und weiterbilden mit Multimedia, Reihe Multmediales Lernen in der Berufsbildung, BW Bildung und Wissen Verlag, Nuernberg, 1998, 170-196.Geyer, W., Weis, R. 1998. A Secure, Accountable, and Collaborative Whiteboard. In Proc. IDMS’98, International Workshop on Distributed Multimedia Systems and Services, Oslo, Norway, Springer, Heidelberg, LNCS 1483, September 1998, 3-14.
Geyer, W., Effelsberg, W. 1998. The Digital Lecture Board - A Teaching and Learning Tool for Remote Instruction in Higher Education. In Proc. ED-MEDIA’98, World Conference on Educational Multimedia and Hypermedia, Freiburg, Germany, June 1998, available on CD-ROM. BEST PAPER AWARD
Effelsberg, W., Geyer, W. 1998. Tools for Digital Lecturing - What We Have and What we Need. In Proc. BITE’98, Bringing Information Technology to Education, Maastricht, Netherlands, March 1998.
1997
Hilt, V., Geyer, W. 1997. A Model for Collaborative Services in Distributed Learning Environments. In Proc. IDMS’97, International Workshop on Interactive Distributed Multimedia Systems and Services, Darmstadt, Germany, Springer, Heidelberg, LNCS 1309, September 1997, 364-375.Eckert, A., Geyer, W., Effelsberg, W. 1997. A Distance Learning System for Higher Education Based on Telecommunications and Multimedia. In Proc. ED-MEDIA’97, World Conference on Educational Multimedia and Hypermedia, Calgary, Canada, June 1997, available on CD-ROM.
Effelsberg, W., Geyer, W., Eckert, A. 1997. Project TeleTeaching Mannheim – Heidelberg. In Proc. 21st Annual Conference of the Society for Classification e.V., University of Potsdam, Germany, March 1997.
Biersack, E., Geyer, W., Bernhardt, C. 1997. Intra- and Inter-Stream Synchronization for Stored Multimedia Streams. In Proc. ICMCS’97, IEEE International Conference on Multimedia Computing and Systems, Hiroshima, Japan, June 1997. OUTSTANDING PAPER AWARD