@inproceedings {4181,
	title = {Refresh Strategies in Continuous Active Learning},
	booktitle = {International Conference on Research and Development in Information Retrieval (SIGIR)},
	year = {2018},
	url = {http://ceur-ws.org/Vol-2127/paper6-profs.pdf},
	author = {Nimesh Ghelani and Gordon Cormack and Mark Smucker}
}
