面向非结构化文本的问答/ question and answer for unstructured text /question and answer for unstructured text
问答系统接受用户以自然语言形式描述的问题,并从大量的非结构化文本数据中查找出能回答该问题的准确、简洁答案。是一类信息检索系统。基于常问问题集的问答/ question answering based on frequently asded questions /question answering based on frequently asded questions
问答系统从已有问题-答案对的集合中找到与用户提问相匹配的问题,并将其对应的答案直接返回给用户。