13. The system of claim 12 , wherein each of the plurality of categories is associated with respective sets of one or more keywords such that the first category is associated with one or more keywords that describe items in the first category.
13. The system of claim 12 , wherein each of the plurality of categories is associated with respective sets of one or more keywords such that the first category is associated with one or more keywords that describe items in the first category. 14. The system of claim 13 , wherein to determine that the item belongs to the first category, the one or more physical processors are further programmed to cause the computer to: compare the keyword with the respective sets of one or more keywords associated with each of the plurality of categories; determine a perfect or imperfect match between the keyword and at least one of the keywords from the respective sets of one or more keywords, wherein the item is determined to belong to the first category based on the perfect or imperfect match.