Find answers to (natual language) questions by machine
Types of questions
- Factoid
- Definition
- Yes-No
- Opinion
- Comparison
Multiple Intelligences in Modern in QA Systems
Knowledge-QA
结构化的，基于知识库，其实就是一个图，结点是实体，边是语义关系。关键是能够提取中问题中的实体以及实体之间的语义关系
Document-QA
非结构化的
Social-QA
类似Quora, Zhihu, Stackoverflow等