Question Answering System Based on Web
Wenpeng Lü, Jinyong Cheng, Qingbo Yang · 2012
This paper summarizes the classification, implementation and evaluation of question answering system (QA). QA is divided into four categories: chat robot, QA based knowledge base, QA retrieval system and QA based on free text. Web QA system is composed with question analysis module, Web information retrieval module and answer extraction module. In the last, TREC QA evaluation is outlined.