A patent granted to Google this week attempts to identify similarities between different types of entities, when it finds information about them on the Web. It refers to these types of similarities as commonalities, as in things they may have in common. Google may use these similarities in a number of ways, such as supplementing search results containing related information based upon results that might be in the same category or possibly located in the same region.
The things identified as common may be for things that are moderately unique, but not completely rare.
The patent say “entities,” but it seems to be focusing upon different businesses that might share some similarities. For example, they refer to a food critic writing about restaurants a few times and tell us that the things such a critic might write about different restaurants might be used to find similarities between those places.