Hideki Tsutsui Toshihiko Manabe Mika Fukui Tetsuya Sakai Hiroko Fujii Koji Urata Improving the Robustness to Recognition Errors in Speech Input Question Answering. 297-312 2006 conf/airs/2006 AIRS http://dx.doi.org/10.1007/11880592_23 db/conf/airs/airs2006.html#TsutsuiMFSFU06