Getting reliable answers by exploiting results from several sources of information
Abstract
A question-answering system will be more convincing if it can give the user elements concerning the reliability of its propositions. In order to address this problem, we chose to take the advice of several searches. First, we search for answers in a reliable document collection, and second, on the Web. When both sources of knowledge allow the system to find common answers, we are confident with it and boost them at the first places.
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