Discriminative Information Retrieval for Question Answering Sentence Selection
نویسندگان
چکیده
We propose a framework for discriminative IR atop linguistic features, trained to improve the recall of answer candidate passage retrieval, the initial step in text-based question answering. We formalize this as an instance of linear feature-based IR, demonstrating a 34% 43% improvement in recall for candidate triage for QA.
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