Abstract: Methods, apparatus, systems and articles of manufacture to expand panelist enrollment are disclosed. An example first media device includes processor circuitry to at least one of instantiate or execute the machine readable instructions to scan at least one local area network to which the first media device is connected, store an identification of a second media device connected to the at least one local area network, in response to scan of the at least one local area network indicating that the second media device is commonly connected to the at least one local area network with the first media device, add the identification of the second media device to a fingerprint, and transmit the fingerprint to a central facility.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed including means for identifying to identify a first request having a first source port number, from a device, determine whether a second request, having a second source port number, is within a threshold number of ports from the first source port number, group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number, and means for classifying to generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

Abstract: Methods, apparatus, systems and articles of manufacture to expand panelist enrollment are disclosed. An example first media device includes processor circuitry to at least one of instantiate or execute the machine readable instructions to scan at least one local area network to which the first media device is connected, store an identification of a second media device connected to the at least one local area network, in response to scan of the at least one local area network indicating that the second media device is commonly connected to the at least one local area network with the first media device, add the identification of the second media device to a fingerprint, and transmit the fingerprint to a central facility.

Abstract: Methods and apparatus to perform an automated gain control protocol with an amplifier based on historical data corresponding to contextual data are disclosed. An example apparatus includes a controller to select an automatic gain control (AGC) parameter for an AGC protocol based on historical data corresponding to contextual data, the contextual data including at least one of a time during which the AGC protocol is performed, a panelist identified by a meter, demographics of an audience identified by the meter, a location of the meter, a station identified by the meter, a media type identified by the meter, or a sound pressure level identified by the meter; and a processor to perform the AGC protocol based on the selected AGC parameter.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed that analyze performance of manufacturer independent devices. An example apparatus includes a software development kit (SDK) deployment engine to deploy an SDK to a manufacturer of a device, the SDK to define heartbeat data to be collected from the device and interfacing techniques to transmit the heartbeat data to a measurement entity. In some examples, the apparatus includes a machine learning engine to predict whether the device is associated with one or more failure modes. The example apparatus also includes an alert generator to generate an alert based on a prediction, the alert to indicate at least one of a type of a first one of the failure modes or at least one component of the device to be remedied according to the first one of the one or more failure modes, and transmit the alert to a management agent.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed including means for identifying to identify a first request having a first source port number, from a device, determine whether a second request, having a second source port number, is within a threshold number of ports from the first source port number, group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number, and means for classifying to generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

Abstract: Methods and apparatus to credit media presentations for online media distributions are disclosed. Example methods and apparatus determine a presenter of a media session based on a user agent identifier extracted from a proxy record associated with the media session, and in response to determining that the user agent identifier does not identify a publisher, identify a first domain referenced by a URL associated with the media session, and, in response to determining that the first domain matches a domain pattern associated with a publisher and does not match a domain in a list of hosting domains, classify the media of the media session as being published by the publisher associated with the matching domain pattern, the publisher being different from the presenter.

Abstract: Methods, apparatus, systems and articles of manufacture to monitor mobile internet usage are disclosed. An example instructions cause one or more processors to at least determine that an application is operating in a background mode at a first identified time; and in response to identifying that the application is operating in the background mode at the first identified time, credit first media output by the application as background media during the first identified time; determine, that the application is operating in a foreground mode at a second identified time; and in response to identifying that the application is operating in the foreground mode at the second identified time, credit second media output by the application as foreground media during the second identified time.

Abstract: Methods, apparatus, systems and articles of manufacture to expand panelist enrollment are disclosed. An example first media device includes processor circuitry to at least one of instantiate or execute the machine readable instructions to scan at least one local area network to which the first media device is connected, store an identification of a second media device connected to the at least one local area network, in response to scan of the at least one local area network indicating that the second media device is commonly connected to the at least one local area network with the first media device, add the identification of the second media device to a fingerprint, and transmit the fingerprint to a central facility.

Abstract: Methods and apparatus to perform an automated gain control protocol with an amplifier based on historical data corresponding to contextual data are disclosed. Example apparatus disclosed herein are to select an automatic gain control (AGC) parameter for an AGC protocol based on historical data corresponding to contextual data, the contextual data including at least one of a time during which the AGC protocol is performed, a panelist identified by a meter, demographics of an audience identified by the meter, a location of the meter, a station identified by the meter, a media type identified by the meter, or a sound pressure level identified by the meter. The disclosed example apparatus are also to perform the AGC protocol based on the selected AGC parameter.

Abstract: Methods, apparatus, systems and articles of manufacture to prevent illicit proxy communications from affecting a monitoring result are disclosed. An example method includes accessing a log of communications of a proxy server, the log of communications including a plurality of records, each of the plurality of records corresponding to a requesting device that transmitted a communication to the proxy server, identifying a first internet protocol (IP) address subnet in the log of communications, the first IP address subnet associated with a block of IP addresses, filtering the plurality of records for a first set of records associated with communications originating from the first IP address subnet, and in response to determining the first set of records does not include a record associated with a heartbeat communication, adding the first IP address subnet to a blacklist of the proxy server.

Abstract: Examples disclosed herein include means for comparing bandwidth usage of an application executing in a background of a device to a threshold to determine a state of the application as one of active or inactive, means for logging event records associated with the application, and means for crediting a duration of background execution of the application. In disclosed examples, the means for crediting is to determine whether the bandwidth usage pattern is spiked or continuous based on a first event record representative of background execution of the application being started, update a second event record to be representative of the background execution of the application being stopped when the bandwidth usage pattern is spiked and a timestamp of the second event record exceeds a temporal activity window, and determine the duration of the background execution of the application based on the first event record and the second event record.

Abstract: Methods, apparatus, systems and articles of manufacture to expand panelist enrollment are disclosed. An example apparatus includes a network communicator to enable the apparatus to communicate with a local area network. A media monitor is to monitor a media presentation of the apparatus and report monitoring data identifying the media presentation to a central facility. A network scanner is to scan the local area network and store an identification of a second device connected to the same local area network as the apparatus. A network information processor is to review the identification of the second device connected to the same local area network as the apparatus, the network information processor to add the identification of the second device to a fingerprint if the second device is commonly connected to the same local area network as the apparatus. A fingerprint reporter is to transmit the fingerprint to the central facility.

Abstract: Methods, apparatus, systems, and articles of manufacture to monitor mobile Internet usage are disclosed. Example apparatus disclosed herein to monitor application usage associated with a device means for differentiating between foreground requests and background requests included in a burst of logged requests. Disclosed example apparatus further include means for calculating a presentation duration for a first application executed by the device based on at least a subset of the foreground requests identified in the burst of logged requests.

Abstract: Methods, apparatus, systems and articles of manufacture to monitor mobile internet usage are disclosed. An example method includes identifying, by executing an instruction with a processor, an application associated with a request for Internet content, the request sent at an identified time; determining, by executing an instruction with the processor, that the application is operating in a background mode at the identified time by identifying a uniform resource location (URL) corresponding to the request, the URL included in the request when the application is operating in the background mode; and crediting, by executing an instruction with the processor, the Internet content as a background application when the application is operating in the background mode at the identified time.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed including means for identifying to identify a first request having a first source port number, from a device, determine whether a second request, having a second source port number, is within a threshold number of ports from the first source port number, group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number, and means for classifying to generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

Abstract: Methods and apparatus to credit media presentations for online media distributions are disclosed. Example methods and apparatus determine a presenter of a media session based on a user agent identifier extracted from a proxy record associated with the media session, and in response to determining that the user agent identifier does not identify a publisher, identify a first domain referenced by a URL associated with the media session, and, in response to determining that the first domain matches a domain pattern associated with a publisher and does not match a domain in a list of hosting domains, classify the media of the media session as being published by the publisher associated with the matching domain pattern, the publisher being different from the presenter.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to identify a first request having a first source port number, from a device, determining whether a second request, having a second source port number, is within a threshold number of ports from the first source port number, group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number, and generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

Abstract: Methods and apparatus to perform an automated gain control protocol with an amplifier based on historical data corresponding to contextual data are disclosed. An example apparatus includes a controller to select an automatic gain control (AGC) parameter for an AGC protocol based on historical data corresponding to contextual data, the contextual data including at least one of a time during which the AGC protocol is performed, a panelist identified by a meter, demographics of an audience identified by the meter, a location of the meter, a station identified by the meter, a media type identified by the meter, or a sound pressure level identified by the meter; and a processor to perform the AGC protocol based on the selected AGC parameter.

Abstract: Methods, apparatus, systems and articles of manufacture to determine click-through rates for advertisements are disclosed. The apparatus includes an application identifier to identify a first application associated with a first request received at a proxy server; a record searcher to search records in a data store within a first threshold of the first request to detect a second request; and a response detector to detect a response to the second request. The application identifier further to identify a parent advertiser based on content of the response to the second request. The record searcher is further to search the data store to identify records within a second threshold of the second request to determine if the second request is directed to the parent advertiser. The apparatus further includes a reporter to record a click-through event or a non-click-through event as a result of the searching.