Paper from Google Research in a related area: http://www.cs.nyu.edu/web/Research/TechReports/TR2007-903/TR2007-903.pdf http://www.cs.nyu.edu/web/Research/TechRe

Paper from Google Research in a related area: http://www.cs.nyu.edu/web/Research/TechReports/TR2007-903/TR2007-903.pdf http://www.cs.nyu.edu/web/Research/TechReports/TR2007-903/TR...