2. The method of claim 1 further comprising: creating a set of frequently occurring concept labels based on the one or more concept labels detected in the textual reports.
2. The method of claim 1 further comprising: creating a set of frequently occurring concept labels based on the one or more concept labels detected in the textual reports. 3. The method of claim 2 wherein learning the association between each of the one or more discriminating image features and the one or more concept labels comprises determining if the initial label assigned to the one or more discriminating image features is within the set of frequently occurring concept labels.