Patent ID: 7028020

Claim:
A method comprising: recognizing a change to content of a user-populated list of items from an item space, wherein the user-populated list comprises two subgroups, said subgroups comprising a related-items group and a not-related-items group; generating a query in response to the change, said query being based on characteristics of the items indicated in the user-populated list, wherein generating the query comprises: finding positive characteristics among items indicated in the related items group; assigning a positive relevance to each positive characteristic based on a weighted occurrence of a respective positive characteristic among the items indicated in the related-items group; finding negative characteristics among items indicated in the not-related-items group; and assigning a negative relevance to each negative characteristic based on a weighted occurrence of a respective negative characteristic among the items indicated in the not-related-items group; and applying the query to the item space to identify a second list of items.