Patent ID: 11936931
Assignee: THE NIELSEN COMPANY (US), LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 14:
15. A method comprising:
after a determination that a first candidate media device asset is a syndicated duplicate of a proprietary media asset, replacing the proprietary media asset in a reference database with the first candidate media device asset, the proprietary media asset to be provided by a first audience measurement entity client;
identifying a first set of candidate media device assets for disqualification from loading into the reference database, the candidate media device assets generated in response to respective presentations of media, the candidate media device assets including A) a signature and B) a media identifier that identifies the media, the first set of candidate media device assets including the first candidate media device asset and a second candidate media device asset, the second candidate media device asset associated with a second audience measurement entity client different from the first audience measurement entity client;
generating a hash table using a second set of the candidate media device assets, the first set different from the second set;
determining one or more counts of matches between C) a first signature and a first media identifier of the first candidate media device asset of the second set and D) respective signatures and media identifiers of multiple ones of the second set using the hash table, the multiple ones of the second set not including the first candidate media device asset; and
loading the first signature into the reference database as a reference signature based on the one or more counts of the matches.