The authors would like to thank Michael Hay and Ashwin Machanavajjhala for the invaluable and thorough feedback on this manuscript. We would also like to thank the LINQS group at the University of Maryland, College Park and the data-management group at Boston University. This manuscript was supported in part by NSF grant #IIS0746930 and NSF grant #1017529, and gifts from Microsoft, Yahoo!, and Google. Some of the images included in Figures 3.1 and 5.1 were taken from Wikimedia Commons and FreeDigitalPhotos.net. The cartoon characters in Figure 2.3 and Figure 6.1 are from . Finally, Figure 8.1 was taken from .
Elena Zheleva, Evimaria Terzi, and Lise GetoorFebruary 2012