question-answering system - Computer Programming. 1. a system that can answer relatively free-form questions, such as questions in a natural language subset, by deduction and retrieval from a database.a system that can answer relatively free-form questions, such as questions in a natural language subset, by deduction and retrieval from a database. 2. a system in which direct answers are provided to submitted queries, rather than a collection of references that may contain the desired answer.a system in which direct answers are provided to submitted queries, rather than a collection of references that may contain the desired answer. ;
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