Abstract: Methods and apparatus are disclosed to identify users associated with device application usage. A disclosed example method involves obtaining demographics of persons to participate in a panel for an audience research study, identifying a set of applications to be monitored, providing devices associated with the persons in the panel with a meter to record usage of the applications and with a user-to-application associator, the user-to-application associator to define associations between the applications to be monitored and the persons associate with the device before the applications are launched, receiving data from a first one of the devices identifying a first one of the persons as a primary user of a first one of the applications in the set of applications, receiving data from the first device identifying usage of the first application, and associating the demographics of the first person with the usage of the first application.

Abstract: Methods and apparatus to generate reference signatures are disclosed. An example method includes collecting a first signature for media being presented to a plurality of households; crediting the media when the first signature matches a reference signature in a reference signature database; in response to determining that the first signature does not match a reference signature in the reference signature database and the first signature does not match an unidentified signature in an unknown signature database, storing the first signature in the unknown signature database; in response to determining that a second signature does not match the reference signature in the reference signature database and the second signature matches the unidentified signature in the unknown signature database, and increasing a count associated with the unidentified signature.

Abstract: Methods and apparatus to monitor media presentations are disclosed. Disclosed example apparatus include means for collecting demographic information from a user with a registrar of a media device, means for transmitting the demographic information to a central facility from the registrar, and means for storing a panelist identifier identifying the user in a shared memory of the media device, the panelist identifier accessible to a first monitoring-enabled application and a second monitoring-enabled application separate from the registrar, the panelist identifier to be retrieved by the first monitoring-enabled application, the first monitoring-enabled application to present media, the first monitoring-enabled application to collect monitoring information if the panelist identifier is in the shared memory and to disable collection of media monitoring information if the panelist identifier is not in the shared memory.

Abstract: Methods and apparatus to create a panel of media device users are disclosed. An example apparatus includes an interface to receive a unique identifier and an application identifier from a media device executing an instrumented application. A panel creator is to create a master frame corresponding to media devices that have executed the instrumented application. A registration data controller is to: (i) determine a skip rate, (ii) assign the media device from the master frame into a first test cell based on a random value and the skip rate, (iii) select a first recruitment interface associated with the first test cell, and (iv) instruct the instrumented application to, in response to the instrumented application being executed for a first time after a threshold period of time since an initial execution of the instrumented application has elapsed, display the first recruitment interface.

Abstract: Methods, apparatus, systems and articles of manufacture to perform media device asset qualification are disclosed. An example apparatus includes an asset quality evaluator to identify candidate media device assets obtained from a media device that identify media. The example apparatus further includes an asset grader to grade the candidate media device assets based on calculating a valid hash count corresponding to a number of matches between a first one of the candidate media device assets compared to a second one of the candidate media device assets using a hash table, and identify the first one of the candidate media device assets as a reference media device asset, the first one having a higher grade compared to grades of other candidate media device assets. The example apparatus further includes an asset loader to generate a validation report including the identification of the reference media device asset.

Abstract: Methods, apparatus, systems and articles of manufacture to identify media sources are disclosed. Example apparatus disclosed herein include an exclusivity determiner, a unique asset identifier, and a signature matcher. The exclusivity determiner is to determine whether media is exclusive to a provider. The unique asset identifier is to associate a first signature of the media with the provider if the media is exclusive to the provider. The signature matcher is to identify the provider based on a second signature, the second signature matching the first signature, the second signature extracted from media presented at a media presentation location.

Abstract: Methods and apparatus are disclosed to identify users associated with device application usage. A disclosed example method involves obtaining demographics of persons to participate in a panel for an audience research study, identifying a set of applications to be monitored, providing devices associated with the persons in the panel with a meter to record usage of the applications and with a user-to-application associator, the user-to-application associator to define associations between the applications to be monitored and the persons associate with the device before the applications are launched, receiving data from a first one of the devices identifying a first one of the persons as a primary user of a first one of the applications in the set of applications, receiving data from the first device identifying usage of the first application, and associating the demographics of the first person with the usage of the first application.

Abstract: Example apparatus disclosed herein include a signature collector to collect a first signature for media being presented to a plurality of households, a media creditor to credit the media when the first signature matches a reference signature in a reference signature database. The example apparatus also includes a signature thresholder to, when the first signature does not match the reference signature in the reference signature database, determine if the first signature matches an unknown signature in an unknown signature database; increase a count associated with the unknown signature when the first signature matches the unknown signature; and determine when a second signature matches the first signature, the second signature including metadata identifying the media.

Abstract: Methods and apparatus to synthesize reference media signatures based on constituent media signatures generated by metered media devices are disclosed. An example apparatus includes a collector to collect first constituent media signatures from a first media device that identify a first portion of media, a collector to collect second constituent media signatures from a second media device that identify a second portion of the media, and a synthesizer to combine the first constituent media signatures from the first media device and the second constituent media signatures from the second media device to form a reference media signature that represents the media, the reference media signature for comparison with third constituent media signatures collected from a third media device to detect consumption of the media at the third media device.

Abstract: Methods and apparatus to monitor media presentations are disclosed. Disclosed example apparatus include means for collecting demographic information from a user with a registrar of a media device, means for transmitting the demographic information to a central facility from the registrar, and means for storing a panelist identifier identifying the user in a shared memory of the media device, the panelist identifier accessible to a first monitoring-enabled application and a second monitoring-enabled application separate from the registrar, the panelist identifier to be retrieved by the first monitoring-enabled application, the first monitoring-enabled application to present media, the first monitoring-enabled application to collect monitoring information if the panelist identifier is in the shared memory and to disable collection of media monitoring information if the panelist identifier is not in the shared memory.

Abstract: Methods and apparatus to synthesize reference media signatures based on constituent media signatures generated by metered media devices are disclosed. An example apparatus includes a collector to collect first constituent media signatures from a first media device that identify a first portion of media, a collector to collect second constituent media signatures from a second media device that identify a second portion of the media, and a synthesizer to combine the first constituent media signatures from the first media device and the second constituent media signatures from the second media device to form a reference media signature that represents the media, the reference media signature for comparison with third constituent media signatures collected from a third media device to detect consumption of the media at the third media device.

Abstract: Example apparatus disclosed herein include a signature collector to collect a first signature for media being presented to a plurality of households, a media creditor to credit the media when the first signature matches a reference signature in a reference signature database. The example apparatus also includes a signature thresholder to, when the first signature does not match the reference signature in the reference signature database, determine if the first signature matches an unknown signature in an unknown signature database; increase a count associated with the unknown signature when the first signature matches the unknown signature; and determine when a second signature matches the first signature, the second signature including metadata identifying the media.

Abstract: Methods, apparatus, systems and articles of manufacture to monitor media presentations are disclosed. An example apparatus includes a registrar, implemented by a processor, to receive demographic information from a user, to transmit the demographic information to a central facility, and to store a consent identifier in a pasteboard of the media device, the consent identifier accessible to a first instrumented application and a second instrumented application executed in a sandbox environment, the consent identifier to indicate to the first instrumented application and the second instrumented application that monitoring is allowed.

Abstract: Methods, apparatus, systems and articles of manufacture to perform media device asset qualification are disclosed. An example apparatus includes an asset quality evaluator to identify candidate media device assets obtained from a media device that identify media. The example apparatus further includes an asset grader to grade the candidate media device assets based on calculating a valid hash count corresponding to a number of matches between a first one of the candidate media device assets compared to a second one of the candidate media device assets using a hash table, and identify the first one of the candidate media device assets as a reference media device asset, the first one having a higher grade compared to grades of other candidate media device assets. The example apparatus further includes an asset loader to generate a validation report including the identification of the reference media device asset.

Abstract: Methods and apparatus to synthesize reference media signatures based on constituent media signatures generated by metered media devices are disclosed. An example apparatus includes a collector to collect first constituent media signatures from a first media device that identify a first portion of media, a collector to collect second constituent media signatures from a second media device that identify a second portion of the media, and a synthesizer to combine the first constituent media signatures from the first media device and the second constituent media signatures from the second media device to form a reference media signature that represents the media, the reference media signature for comparison with third constituent media signatures collected from a third media device to detect consumption of the media at the third media device.

Abstract: Methods and apparatus to create a panel of media device users are disclosed. An example apparatus includes an interface to receive a unique identifier and an application identifier from a media device executing an instrumented application. A panel creator is to create a master frame corresponding to media devices that have executed the instrumented application. A registration data controller is to: (i) determine a skip rate, (ii) assign the media device from the master frame into a first test cell based on a random value and the skip rate, (iii) select a first recruitment interface associated with the first test cell, and (iv) instruct the instrumented application to, in response to the instrumented application being executed for a first time after a threshold period of time since an initial execution of the instrumented application has elapsed, display the first recruitment interface.

Abstract: Methods, apparatus, systems and articles of manufacture to perform media device asset qualification are disclosed. An example apparatus includes an asset quality evaluator to identify candidate media device assets obtained from a media device that identify media. The example apparatus further includes an asset grader to grade the candidate media device assets based on calculating a valid hash count corresponding to a number of matches between a first one of the candidate media device assets compared to a second one of the candidate media device assets using a hash table, and identify the first one of the candidate media device assets as a reference media device asset, the first one having a higher grade compared to grades of other candidate media device assets. The example apparatus further includes an asset loader to generate a validation report including the identification of the reference media device asset.

Abstract: Methods and apparatus to create a panel of media device users are disclosed. An example method includes instructing, from a central facility, a media provider to instrument an application with monitoring instructions. A unique identifier and an application identifier are received from a media device executing the monitoring instructions. A master frame corresponding to media devices that have executed the monitoring instructions is created. A skip rate representing a rate at which media devices in the master frame are to be selected to join the panel is determined. The media device is selected from the master frame based on a random value and the skip rate. The monitoring instructions associated with the selected media device are instructed to display a recruitment interface to a user associated with the selected media device requesting the user to join the panel.

Abstract: Methods, apparatus, systems and articles of manufacture to monitor media presentations are disclosed. An example apparatus includes a registrar, implemented by a processor, to receive demographic information from a user, to transmit the demographic information to a central facility, and to store a consent identifier in a pasteboard of the media device, the consent identifier accessible to a first instrumented application and a second instrumented application executed in a sandbox environment, the consent identifier to indicate to the first instrumented application and the second instrumented application that monitoring is allowed.

Abstract: Methods and apparatus to synthesize reference media signatures based on constituent media signatures generated by metered media devices are disclosed. An example apparatus includes a collector to collect first constituent media signatures from a first media device that identify a first portion of media, a collector to collect second constituent media signatures from a second media device that identify a second portion of the media, and a synthesizer to combine the first constituent media signatures from the first media device and the second constituent media signatures from the second media device to form a reference media signature that represents the media, the reference media signature for comparison with third constituent media signatures collected from a third media device to detect consumption of the media at the third media device.