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Acknowledgments
We are grateful to Dr. Gary Marchionini for his support on this book. We also greatly appreciate
the insightful comments and suggestions provided by Drs. Nicholas J. Belkin, Max L. Wilson,
Heather O’Brien, and Jacek Gwizdka. Finally, we are thankful for the help and support of Diane
Cerra from Morgan & Claypool Publishers. Our studies that inspired and empirically supported
this work were funded by NSF grants IIS-1423239 and IIS-1717488.
Jiqun Liu and Chirag Shah, May 2019
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