US 12,223,267 B2
Question answering system, question answering program, and question answering method
Keiichi Matsuzawa, Tokyo (JP); and Mitsuo Hayasaka, Tokyo (JP)
Assigned to HITACHI VANTARA, LTD., Yokohama (JP)
Filed by Hitachi, Ltd., Tokyo (JP)
Filed on Mar. 10, 2022, as Appl. No. 17/691,616.
Claims priority of application No. 2021-093934 (JP), filed on Jun. 3, 2021.
Prior Publication US 2022/0391586 A1, Dec. 8, 2022
Int. Cl. G06F 40/279 (2020.01); G06F 40/166 (2020.01)
CPC G06F 40/279 (2020.01) [G06F 40/166 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A question answering system that prevent the question answering system from suggesting a dangerous operation to a questioner, the question answering system comprising:
a memory; and
a central processing unit (CPU) that is communicatively coupled to the memory, wherein the CPU is configured to:
receive a question from the questioner,
identify, based on the question, a question pattern and an answer pattern corresponding to the question pattern from a description included in a document and convert the question pattern and answer pattern identified to create question-answer pair data including a question sentence and an answer sentence; and
replace the question-answer pair data by replaced question-answer pair data including the question sentence and a replaced answer sentence,
wherein the replaced question-answer pair data is determined by determining whether the answer sentence of the question-answer pair data includes the dangerous operation, and
replacing, when it is determined that the dangerous operation is included in the answer sentence, the answer sentence including a description of the dangerous operation by the replaced answer sentence depending on a classification of the dangerous operation, to thereby create the replaced question-answer pair data.