1. A system for managing confidence data in a question-answering environment, the system comprising: a processor; and a computer readable storage medium having program instructions embodied therewith, the program instructions executable by the processor to cause the system to: sort, based on a set of answer categories for a subject matter, a first set of a plurality of answers into a first answer category and a second set of the plurality of answers into a second answer category, each of the first set corresponding to at least one of a third set of a plurality of confidence scores and each of the second set corresponding to at least one of a fourth set of the plurality of confidence scores, the plurality of confidence scores representing confidence of answers to a query submitted to a question-answering system; classify confidence scores of the third set into one of a plurality of confidence buckets using a first threshold; determine a fifth set of a plurality of thresholds using the plurality of confidence scores; and classify unclassified confidence scores of the third set into one of the plurality of confidence buckets using the fifth set of the plurality of thresholds.
1. A system for managing confidence data in a question-answering environment, the system comprising: a processor; and a computer readable storage medium having program instructions embodied therewith, the program instructions executable by the processor to cause the system to: sort, based on a set of answer categories for a subject matter, a first set of a plurality of answers into a first answer category and a second set of the plurality of answers into a second answer category, each of the first set corresponding to at least one of a third set of a plurality of confidence scores and each of the second set corresponding to at least one of a fourth set of the plurality of confidence scores, the plurality of confidence scores representing confidence of answers to a query submitted to a question-answering system; classify confidence scores of the third set into one of a plurality of confidence buckets using a first threshold; determine a fifth set of a plurality of thresholds using the plurality of confidence scores; and classify unclassified confidence scores of the third set into one of the plurality of confidence buckets using the fifth set of the plurality of thresholds. 4. The system of claim 1 , wherein: the first threshold is a static threshold, and wherein the program instructions executable by the processor to cause the system to classify the third set of the plurality of confidence scores into one of the plurality of confidence buckets in accordance with the first threshold includes causing the system to: determine that a portion of the third set of the plurality of confidence achieves the static threshold; and classify the portion of the third set of the plurality of confidence scores into one of the plurality of confidence buckets in response to determining that the portion of the third set achieves the static threshold.