SIGIR'05 - Web search 3 Improving web search results using affinity graph Benyu Zhang Hua Li Yi Liu Lei Ji Wensi Xi Weiguo Fan Zheng Chen Wei-Ying Ma Learning to estimate query difficulty: including applications to missing content detection and distributed information retrieval Elad Yom-Tov Shai Fine David Carmel Adam Darlow Impedance coupling in content-targeted advertising Berthier Ribeiro-Neto Marco Cristo Paulo B. Golgher Edleno Silva de Moura Return to SIGIR'05 session listing ©2006 Association for Computing Machinery