Structured use of external knowledge for event-based open domain question answering Hui Yang, Tat-Seng Chua, Shuguang Wang, and Chun-Keat Koh   View Paper (PDF)   Return to Question answering BIBTEX @inproceedings       {DBLP:conf/sigir/YangCWK03,   author    = {Tat-Seng Chua and                 Chun-Keat Koh and                 Hui Yang and                 Shuguang Wang},    booktitle = {SIGIR},    title     = {Structured use of external knowledge for event-based open domain question answering.},    pages     = {33-40},    year      = {2003},    url       = {db/conf/sigir/sigir2003.html#YangCWK03},    ee        = {http://doi.acm.org/10.1145/860444},    crossref  = {conf/sigir/2003},    bibsource = {DBLP, http://dblp.uni-trier.de}  } ©2004 Association for Computing Machinery