Michael Fleischman Eduard H. Hovy Abdessamad Echihabi Offline Strategies for Online Question Answering: Answering Questions Before They Are Asked. 1-7 2003 ACL http://acl.ldc.upenn.edu/acl2003/main/pdfs/Fleischman.pdf db/conf/acl/acl2003.html#FleischmanHE03