Yoji Kiyota Sadao Kurohashi Teruhisa Misu Kazunori Komatani Tatsuya Kawahara Fuyuko Kido Dialog Navigator : A Spoken Dialog Q-A System based on Large Text Knowledge Base. 149-152 2003 ACL (Companion) https://aclanthology.org/P03-2027/ https://doi.org/10.3115/1075178.1075203 conf/acl/2003c db/conf/acl/acl2003c.html#KiyotaKMKKK03