@inproceedings{ku-etal-2007-question, title = "Question Analysis and Answer Passage Retrieval for Opinion Question Answering Systems", author = "Ku, Lun-Wei and Liang, Yu-Ting and Chen, Hsin-Hsi", editor = "Chen, Kuang-Hua and Chen, Berlin", booktitle = "Proceedings of the 19th Conference on Computational Linguistics and Speech Processing", month = sep, year = "2007", address = "Taipei, Taiwan", publisher = "The Association for Computational Linguistics and Chinese Language Processing (ACLCLP)", url = "https://aclanthology.org/O07-1013/", pages = "177--189" }