Just found the links in the download.sh for ATIS do not work. $DL_CMD http://www-etud.iro.umontreal.ca/~mesnilgr/atis/atis.fold0.pkl.gz $DL_CMD http://www-etud.iro.umontreal.ca/~mesnilgr/atis/atis.fold1.pkl.gz $DL_CMD http://www-etud.iro.umontreal.ca/~mesnilgr/atis/atis.fold2.pkl.gz $DL_CMD http://www-etud.iro.umontreal.ca/~mesnilgr/atis/atis.fold3.pkl.gz $DL_CMD http://www-etud.iro.umontreal.ca/~mesnilgr/atis/atis.fold4.pkl.gz It reported 403 error.