Query-Log-based Personalization
Data mining query logs? Then these research papers might interest you.
Ji-Rong Wen, Jian-Yun and Hong-Jiang Zhang:
Query Clustering using User Logs ACM Transactions on Information Systems (ACM TOIS), 20(1), 59-81, January, 2002
http://doi.acm.org/10.1145/503104.503108
Hang Cui, Ji-Rong Wen, Jian-Yun Nie and Wei-Ying Ma:
Query Expansion by Mining User Logs
IEEE Transaction on Knowledge and Data Engineering, Vol. 15, No. 4, July/August 2003.
http://csdl.computer.org/comp/trans/tk/2003/04/k4toc.html
or
http://research.microsoft.com/asia/dload_files/group/mediasearching/2002p/QE-TKDE.pdf
Gui-Rong Xue, Hua-Jun Zeng, Zheng Chen, Wei-Ying Ma, Hong-Jiang Zhang, Chao-Jun Lu:
Implicit Link Analysis for Small Web Search
SIGIR Conference, 2003.
http://research.microsoft.com/~i-hjzeng/p31261-xue.pdf