Implicit Durations Calculation and Similarity Comparison in Question Answering Systems
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United States of America Patent
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Oct 7, 2014
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Oct 7, 2014
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Mechanisms for performing a duration-based operation are provided. At least one document is received having a plurality of associated dates and/or times and concepts associated with the dates and/or times. The at least one document does not explicitly specify a duration between the dates and/or times. Dates and/or times in the at least one document having similar associated concepts are correlated and, for the correlated dates and/or times, an implicit duration is calculated based on the dates and/or times. The concepts are associated with the implicit duration and a first document in the at least one document is annotated with an implicit duration annotation that specifies the implicit duration and the associated concepts. A duration based operation is then performed based on the implicit duration annotation.
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