@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00041960, author = {Nishimura, Kiyohiko G and Ozaki, Hiroyuki}, month = {Apr}, note = {application/pdf, 本文フィルはリンク先を参照のこと}, title = {A Note on Learning under the Knightian Uncertainty}, year = {2001} }