15. The computer-implemented method of claim 14 , further comprising assigning a second category for the item of interest, the second category assignment comprising: identifying a category attribute of the first category; designating a selected number of the obtained categories that possess the identified category attribute of the first category as second category candidates; and assigning, as the second category for the item of interest, a common ancestor of the second category candidates.
16. The computer-implemented method of claim 15 , wherein the second category candidates comprise the selected number of highest relevance categories that possess the identified attribute of the first category.