H. Lieberman, N. Dyke, and A. Vivacqua. IUI '99: Proceedings of the 4th international conference on Intelligent user interfaces, page 65--68. New York, NY, USA, ACM Press, (1999)
M. Hansen, and E. Shriver. CIKM '01: Proceedings of the tenth international conference on Information and knowledge management, page 135--142. New York, NY, USA, ACM, (2001)
J. Goecks, and D. Cosley. IUI '02: Proceedings of the 7th international conference on Intelligent user interfaces, page 87--94. New York, NY, USA, ACM Press, (2002)
G. Xue, H. Zeng, Z. Chen, W. Ma, H. Zhang, and C. Lu. SIGIR '03: Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval, page 56--63. New York, NY, USA, ACM, (2003)
L. Aalto, N. G&\#246;thlin, J. Korhonen, and T. Ojala. MobiSys '04: Proceedings of the 2nd international conference on Mobile systems, applications, and services, page 49--58. New York, NY, USA, ACM Press, (2004)
A. Bunt, C. Conati, and J. Mcgrenere. IUI '04: Proceedings of the 9th international conference on Intelligent user interface, page 117--124. New York, NY, USA, ACM Press, (2004)
A. Bunt, C. Conati, and J. Mcgrenere. Proceedings of the 9th international conference on Intelligent user interfaces, page 117--124. New York, NY, USA, ACM, (2004)
K. Gajos, and D. Weld. IUI '04: Proceedings of the 9th international conference on Intelligent user interface, page 93--100. New York, NY, USA, ACM Press, (2004)
Y. Hijikata. IUI '04: Proceedings of the 9th international conference on Intelligent user interfaces, page 198--205. New York, NY, USA, ACM Press, (2004)
L. Findlater, and J. McGrenere. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, page 89--96. New York, NY, USA, ACM, (2004)
P. Chirita, W. Nejdl, R. Paiu, and C. Kohlsch&\#252;tter. SIGIR '05: Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval, page 178--185. New York, NY, USA, ACM Press, (2005)
X. Shen, B. Tan, and C. Zhai. CIKM '05: Proceedings of the 14th ACM international conference on Information and knowledge management, page 824--831. New York, NY, USA, ACM Press, (2005)
M. Eirinaki, and M. Vazirgiannis. ICDM '05: Proceedings of the Fifth IEEE International Conference on Data Mining, page 130--137. Washington, DC, USA, IEEE Computer Society, (2005)
A. Gogoulou, E. Gouli, M. Grigoriadou, and M. Samarakou. CSCL '05: Proceedings of th 2005 conference on Computer support for collaborative learning, page 180--189. International Society of the Learning Sciences, (2005)
F. Radlinski, and T. Joachims. KDD '05: Proceeding of the eleventh ACM SIGKDD international conference on Knowledge discovery in data mining, page 239--248. New York, NY, USA, ACM, (2005)