@incollection{NIPS2007_232,
 title = {Direct Importance Estimation with Model Selection and Its Application to Covariate Shift Adaptation},
 author = {Masashi Sugiyama and Shinichi Nakajima and Hisashi Kashima and Paul Von Buenau and Motoaki Kawanabe},
 booktitle = {Advances in Neural Information Processing Systems 20},
 editor = {J.C. Platt and D. Koller and Y. Singer and S. Roweis},
 publisher = {MIT Press},
 address = {Cambridge, MA},
 pages = {1433--1440},
 year = {2008}
}