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AssigneeThe Nielsen Company (US), LLC
InventorsJames Petro, Dan Nelson, Deborah Cross, Raghuram Ranganathan
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Methods, apparatus, systems and articles of manufacture are disclosed selectively generating and storing hashed reference signatures. An example method disclosed herein determining whether watermark coverage of a first media segment satisfies a dropout constraint, the first media segment corresponding to a first monitoring time interval of a media source feed and, when the watermark coverage of the first media segment does not satisfy the dropout constraint hashing first media signatures associated with the first media segment to generate corresponding first hashed signatures and generating first reference data for the first media segment, the first reference data including the first hashed signatures and the first media signatures. The example method further includes, when the watermark coverage of the first media segment satisfies the dropout constraint, generating second reference data for the first media segment, the second reference data including the first media signatures.
An audience measurement computing system, comprising:
A method comprising:
A non-transitory computer-readable storage medium having stored thereon computer-readable instructions that, when executed by at least one processor, cause performance of operations comprising:
Dependencies are inferred from the claim text.