@INPROCEEDINGS{HawkingCT98V, BOOKTITLE = {Proceedings of {TREC}-7}, MONTH = {November}, YEAR = {1998}, AUTHOR = {David Hawking and Nick Craswell and Paul Thistlewaite}, TITLE = {Overview of {TREC-7 Very Large Collection Track}}, pages = {91--104}, NOTE = {NIST special publication 500-242, \url{https://david-hawking.net/pubs/hawking_trec98vlc.pdf} and \url{trec.nist.gov/pubs/trec7/t7_proceedings.html} }, }