Patent ID: 8825672

Claim:
A computer-implemented method comprising: as implemented by one or more computing devices configured with specific executable instructions, for each of one or more other versions of an item that are different than a first version of the item, generating an originality score for a pairing including the other version of the item and the first version of the item, the originality score indicating a degree to which content of the other version of the item is diverse from content of the first version of the item, wherein the originality score is generated based at least in part on a comparison of the content of the other version of the item with the content of the first version of the item; and determining a diversity measure for the first version of the item that indicates a degree to which the first version of the item differs from the one or more other versions of the item, wherein the diversity measure is determined based at least in part on the one or more generated originality scores, wherein the diversity measure indicates a percentage or amount of content of the first version of the item that is different than content of the one or more other versions of the item.