Methods and apparatus to perform media device asset qualification

1. An apparatus comprising:

at least one memory; and

at least one processor to execute instructions to at least:

identify a first set of candidate media device assets for disqualification, 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;

generate a hash table using a second set of the candidate media device assets, the first set different from the second set;

determine one or more counts of matches between C) a first signature and a first media identifier of a 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

load the first signature into a reference database as the reference signature based on the one or more counts of the matches.

2. The apparatus of claim 1 , wherein the at least one processor is to identify a second candidate media device asset of the first set in response to identifying a jump in a respective timestamp associated with the second candidate media device asset.

3. The apparatus of claim 1 , wherein the at least one processor is to identify a second candidate media device asset of the first set in response to identifying an incorrect language in a corresponding media identifier associated with the second candidate media device asset.

4. The apparatus of claim 1 , wherein the at least one processor is to identify a second candidate media device asset of the first set in response to determining that the second candidate media device asset does not satisfy a minimum duration threshold.

5. The apparatus of claim 1 , wherein the at least one processor is to identify a second candidate media device asset of the first set in response to determining that the second candidate media device asset is missing one or more timestamps.

6. The apparatus of claim 1 , wherein the at least one processor is to grade one or more candidate media device assets of the second set based on a difference between an expected duration of the media and a matched duration of the media, the matched duration corresponding to a number of signatures in the first candidate media device asset that matches one of the respective signatures in at least one other candidate media device asset.

7. The apparatus of claim 1 , wherein the media does not have a reference signature in the reference database, and the at least one processor is to:

obtain database candidates, the database candidates including first database candidates having the media identifier;

store the first database candidates in a database different from the reference database in response to determining that the media identified by the media identifier does not have the reference signature in the reference database;

in response to storing each of the first database candidates in the database, increment a counter; and

in response to a value of the counter satisfying a threshold, identify the first database candidates as the candidate media device assets.

8. A non-transitory computer readable storage medium comprising instructions that, when executed, cause at least one processor to at least:

identify a first set of candidate media device assets for disqualification, 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;

generate a hash table using a second set of the candidate media device assets, the first set different from the second set;

determine one or more counts of matches between C) a first signature and a first media identifier of a 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

load the first signature into a reference database as the reference signature based on the one or more counts of the matches.

9. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the at least one processor to identify a second candidate media device asset of the first set in response to identifying a jump in a respective timestamp associated with the second candidate media device asset.

10. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the at least one processor to identify a second candidate media device asset of the first set in response to identifying an incorrect language in a corresponding media identifier associated with the second candidate media device asset.

11. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the at least one processor to identify a second candidate media device asset of the first set in response to determining that the second candidate media device asset does not satisfy a minimum duration threshold.

12. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the at least one processor to identify a second candidate media device asset of the first set in response to determining that the second candidate media device asset is missing one or more timestamps.

13. The non-transitory computer readable storage medium of claim 8 , wherein the instructions, when executed, cause the at least one processor to grade one or more candidate media device assets of the second set based on a difference between an expected duration of the media and a matched duration of the media, the matched duration corresponding to a number of signatures in the first candidate media device asset that matches one of the respective signatures in at least one other candidate media device asset.

14. The non-transitory computer readable storage medium of claim 8 , wherein the media does not have a reference signature in the reference database, and the instructions, when executed, cause the at least one processor to:

obtain database candidates, the database candidates including first database candidates having the media identifier;

store the first database candidates in a database different from the reference database in response to determining that the media identified by the media identifier does not have the reference signature in the reference database;

in response to storing each of the first database candidates in the database, increment a counter; and

in response to a value of the counter satisfying a threshold, identify the first database candidates as the candidate media device assets.

15. A method comprising:

identifying a first set of candidate media device assets for disqualification, 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;

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 a 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 a reference database as the reference signature based on the one or more counts of the matches.

16. The method of claim 15 , further including identifying a second candidate media device asset of the first set in response to identifying a jump in a respective timestamp associated with the second candidate media device asset.

17. The method of claim 15 , further including identifying a second candidate media device asset of the first set in response to identifying an incorrect language in a corresponding media identifier associated with the second candidate media device asset.

18. The method of claim 15 , further including identifying a second candidate media device asset of the first set in response to determining that the second candidate media device asset does not satisfy a minimum duration threshold.

19. The method of claim 15 , further including identifying a second candidate media device asset of the first set in response to determining that the second candidate media device asset is missing one or more timestamps.

20. The method of claim 15 , further including grading one or more candidate media device assets of the second set based on a difference between an expected duration of the media and a matched duration of the media, the matched duration corresponding to a number of signatures in the first candidate media device asset that matches one of the respective signatures in at least one other candidate media device asset.

21. The method of claim 15 , wherein the media does not have a reference signature in the reference database, and further including:

obtaining database candidates, the database candidates including first database candidates having the media identifier;

storing the first database candidates in a database different from the reference database in response to determining that the media identified by the media identifier does not have the reference signature in the reference database;

in response to storing each of the first database candidates in the database, incrementing a counter; and

in response to a value of the counter satisfying a threshold, identifying the first database candidates as the candidate media device assets.