@article {3489,
	title = {Assessing Efficiency-Effectiveness Tradeoffs in Multi-Stage Retrieval Systems Without Using Relevance Judgments},
	journal = {ArXiv},
	volume = {abs/1506.00717},
	year = {2015},
	url = {http://arxiv.org/abs/1506.00717},
	author = {Charles Clarke and J. Shane Culpepper and Alistair Moffat}
}
