user- Proceedings of the Workshop on Tagging and Metadata for Social Information Organization, 16th International World Wide Web Conference, (2007)
- Phys. Rev. E 64(2):026118 (July 2001)
- Int. J. Hum.-Comput. Stud. 65(1):57--70 (2007)
- J. Intell. Inf. Syst. 20(2):131--160 (2003)
- WWW '07: Proceedings of the 16th international conference on World Wide Web, page 461--470. New York, NY, USA, ACM, (2007)
- KDD '01: Proceedings of the seventh ACM SIGKDD international conference on Knowledge discovery and data mining, page 275--280. New York, NY, USA, ACM, (2001)
- HYPERTEXT '05: Proceedings of the sixteenth ACM conference on Hypertext and hypermedia, page 151--160. New York, NY, USA, ACM, (2005)
- World Wide Web 7(1):59--82 (2004)
- LinkKDD '05: Proceedings of the 3rd international workshop on Link discovery, page 58--65. New York, NY, USA, ACM, (2005)
- WWW '08: Proceeding of the 17th international conference on World Wide Web, page 655--664. New York, NY, USA, ACM, (2008)
- KDD '07: Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, page 370--379. New York, NY, USA, ACM, (2007)
- ACM-SE 42: Proceedings of the 42nd annual Southeast regional conference, page 402--103. New York, NY, USA, ACM, (2004)
- KDD '07: Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, page 163--172. New York, NY, USA, ACM, (2007)
- SAC '06: Proceedings of the 2006 ACM symposium on Applied computing, page 1409--1413. New York, NY, USA, ACM, (2006)
- WWW '08: Proceeding of the 17th international conference on World Wide Web, page 685--694. New York, NY, USA, ACM, (2008)
- KDD '05: Proceedings of the eleventh ACM SIGKDD international conference on Knowledge discovery in data mining, page 324--333. New York, NY, USA, ACM, (2005)
- CIKM '06: Proceedings of the 15th ACM international conference on Information and knowledge management, page 248--257. New York, NY, USA, ACM, (2006)
- WWW '06: Proceedings of the 15th international conference on World Wide Web, page 173--182. New York, NY, USA, ACM, (2006)
- WWW '06: Proceedings of the 15th international conference on World Wide Web, page 223--232. New York, NY, USA, ACM, (2006)
- KDD '03: Proceedings of the ninth ACM SIGKDD international conference on Knowledge discovery and data mining, page 541--546. New York, NY, USA, ACM, (2003)
