Chiori Hori Takaaki Hori Hajime Tsukada Hideki Isozaki Yutaka Sasaki Eisaku Maeda Spoken Interactive ODQA System: SPIQA. 153-156 2003 ACL (Companion) https://aclanthology.org/P03-2028/ https://doi.org/10.3115/1075178.1075204 conf/acl/2003c db/conf/acl/acl2003c.html#HoriHTISM03