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![]() | Riloff, Ellen M. | Looking under the hood: tools for diagnosing your question answering engine | In this paper we analyze two question answering tasks : the TREC-8 question answering task and a set of reading comprehension exams. First, we show that Q/A systems perform better when there are multiple answer opportunities per question. Next, we analyze common approaches to two subproblems: ter... | TREC-8; Performance | 2001 |