6. The method of claim 1 , further comprising determining at least one relevant aspect name for the one or more lowest level categories in the hierarchy of the category tree.
6. The method of claim 1 , further comprising determining at least one relevant aspect name for the one or more lowest level categories in the hierarchy of the category tree. 7. The method of claim 6 , wherein the determining of the at least one relevant aspect name comprises: aggregating counts based on the aspect demand data for aspect names of the one or more lowest level categories; and sorting the aspect names in descending order based on the counts.