17. A method comprising: determining an initial organizational table for a document based on textual similarity between entries of the organizational table and target text fragments of the document, and not taking into account text formatting; training a classifier to identify text fragment pairs consisting of entries of the organizational table and corresponding target text fragments of the document based at least in part on text formatting features, the training employing a training set of examples annotated based on the initial organizational table of the document; and updating the initial organizational table of the document using the trained classifier.
20. The method as set forth in claim 17 , further comprising: validating the trained classifier respective to its effectiveness in identifying text fragment pairs consisting of entries of the organizational table and corresponding target text fragments, the updating being performed conditional upon the validating.