Generalized inverse document frequency.

@inproceedings{metzler-2008-generalized, author = {Donald Metzler}, editor = {James G. Shanahan and Sihem Amer-Yahia and Ioana Manolescu and Yi Zhang and David A. Evans and Alek Kolcz and Key-Sun Choi and Abdur Chowdhury}, title = {{Generalized inverse document frequency}}, booktitle = {{Proceedings of the 17th ACM Conference on Information and Knowledge Management, CIKM 2008, Napa Valley, California, USA, October 26-30, 2008}}, pages = {399--408}, publisher = {ACM}, year = {2008}, url = {https://doi.org/10.1145/1458082.1458137}, doi = {https://doi.org/10.1145/1458082.1458137} }