@inproceedings {4175,
	title = {Unbiased Low-Variance Estimators for Precision and Related Information Retrieval Effectiveness Measures},
	booktitle = {International Conference on Research and Development in Information Retrieval (SIGIR)},
	year = {2019},
	doi = {10.1145/3331184.3331355},
	author = {Gordon Cormack and Maura Grossman}
}
