@inproceedings{SIGIR-2015-GaoO,
	author        = "Ning Gao and Douglas W. Oard",
	booktitle     = "{Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2766462.2767793",
	isbn          = "978-1-4503-3621-5",
	pages         = "799--802",
	publisher     = "{ACM}",
	title         = "{A Head-Weighted Gap-Sensitive Correlation Coefficient}",
	year          = 2015,
}