NTT's QA Systems for NTCIR QAC-1.
Yutaka Sasaki, Hideki Isozaki, Tsutomu Hirao, Koji Kokuryou, Eisaku Maeda · NTCIR · 2002
In this paper, we describe two Question Answering systems that participated in the NTCIR QAC task. The first system, SAIQA-Ii, follows a standard worddistance approach. This system was designed to output the top five candidates and participated in TASK-1. The second system, SAIQA-Is, employs a logic-based approach. This system was designed to output only the most likely candidates and participated in TASK-1 through TASK-3. The evaluation results showed that SAIQA-Ii’s word-distance approach was more suitable for TASK-1 than SAIQA-Is’s; however, SAIQAIs’s logic-based approach was promising in TASK-2 and TASK-3.