Research Article
Web Information Extraction for Question and Answering System about Prices of Chinese Agricultural Products
Agricultural Information Institute, China Academy of Agricultural Sciences, Beijing, People`s Republic of China
Li Liu
School of Computer Sciences and Technology, Beijing Institution of Technology, Beijing, People`s Republic of China
Qing-Tian Zeng
College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao, Shandong, People`s Republic of China
Xiao-Rong Yang
Agricultural Information Institute, China Academy of Agricultural Sciences, Beijing, People`s Republic of China
Neng-Fu Xie
Agricultural Information Institute, China Academy of Agricultural Sciences, Beijing, People`s Republic of China