Transformations and algorithms for least sum of squares hypersphere fitting.

Michael Burr Alan Cheng Ryan Coleman Diane L. Souvaine Transformations and algorithms for least sum of squares hypersphere fitting. 104-107 2004 CCCG http://www.cccg.ca/proceedings/2004/58.pdf db/conf/cccg/cccg2004.html#BurrCCS04