Using Wikipedia at the TREC QA Track

[摘要] We describe our participation in theTREC 2004 Question Answering track. We provide a detailed account of the ideas under lying our approach to the QA task, especially to the socalled “other” questions. This year we made essential use of Wikipedia, the free on line encyclopedia, both as a source of answers to factoid questions and as an importance model to help us identify material to be returned in re

[学科分类] 社会科学、人文和艺术（综合）