@incollection{NIPS2005_570,
 title = {Dual-Tree Fast Gauss Transforms},
 author = {Dongryeol Lee and Alexander Gray and Andrew Moore},
 booktitle = {Advances in Neural Information Processing Systems 18},
 editor = {Y. Weiss and B. Sch\"{o}lkopf and J. Platt},
 publisher = {MIT Press},
 address = {Cambridge, MA},
 pages = {747--754},
 year = {2006}
}