Federated search of text search engines in uncooperative environments

Luo Si
2007 SIGIR Forum  
ii ACKNOWLEDGEMENTS I would never have been able to finish my dissertation without the guidance of my committee members, help from friends, and support from my family. My first debt of gratitude must go to my advisor, Jamie Callan, for taking me on as a student and for leading me through many aspects of my academic career. Jamie is not only a wonderful advisor but also a great mentor. He told me different ways to approach research problems. He showed me how to collaborate with other researchers
more » ... and share success. He guided me how to write conference and journal papers, had confidence in me when I doubted myself, and brought out the best in me. Jamie has given me tremendous help on research and life in general. This experience has been extremely valuable to me and I will treasure it for the rest of my life. I would like to express my sincere gratitude towards the other members of my committee, Yiming Yang, Jamie Carbonell and Luis Gravano, for their efforts and constructive suggestions. Yiming has been very supportive for both my work and my life since I came to Carnegie Mellon University. Her insightful comments and suggestions helped a lot to improve the quality of this dissertation. Jamie has kindly pointed out different ways to solve research problems in my dissertation, which results in many helpful discussions. I am grateful of Luis for his vision and expertise, which helps me to think more deeply and get a better understanding of the research problems. A large part of my achievements as a graduate student and researcher comes from the collaborations with my co-authors. I especially would like to thank
doi:10.1145/1273221.1273232 fatcat:v4tddctxybbwbcknwuwggipxne