Question answering system: SAIQA - A "learned computer" that answers any questions

Eisaku Maeda, Hideki Isozaki, Yutaka Sasaki, Hideto Kazawa, Tsutomu Hirao, Jun Suzuki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Question Answering (QA) is a technique that retrieves the correct answers from a large corpus to questions asked in natural language. QA, which has recently been extensively developed mainly in the United States, is an open-domain system and does not require a knowledge database. In this paper, we introduce a Japanese QA system, SAIQA, which has been developed at NTT Communication Science Laboratories. We outline some of the key technologies used in SAIQA, and describe world trends and future research topics related to QA technology.

Original languageEnglish
Pages (from-to)122-133
Number of pages12
JournalNTT R and D
Issue number2
Publication statusPublished - 2003


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