Abstract: A method includes receiving, by a computing system, an audio signal, where the audio signal defines a segment of media content over time. The method also includes establishing by the computing system, based on the received audio signal, a normalized query frequency-domain representation of the received audio signal. The method further includes matching, by the computing system, the normalized query frequency-domain representation of the received audio signal with a correspondingly normalized reference frequency-domain representation of a reference audio signal having an associated identity. The method additionally includes based on the matching, determining by the computing system that an identity of the received audio signal is the associated identity of the reference audio signal.

Abstract: Example methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to detect an operational state (such as an on/off state) of a media device are disclosed herein. Disclosed example apparatus are to monitor for activity on a first bus of an (HDMI) port of the media device. Disclosed example apparatus are also to inject a message with a first address on the first bus in response to detection of no activity on the first bus for at least a threshold duration. Disclosed example apparatus are further to detect the operational state of the media device based on whether a response to the message is received on the first bus.

Abstract: Methods, apparatus, systems, and articles of manufacture to estimate cardinality of users represented in arbitrarily distributed bloom filter arrays are disclosed. A system includes a communication interface to: access a first Bloom filter array representative of first entries in a first database, the first entries allocated to ones of first elements in the first Bloom filter array based on a non-uniform distribution of outputs of a hash function applied to the first entries, and access a second Bloom filter array representative of second entries in a second database. The system also includes machine readable instructions to cause one or more processors to estimate a cardinality of a union of the first and second entries based on the non-uniform distribution of the outputs of the hash function.

Abstract: Example methods, apparatus, systems, and articles of manufacture for determining intensity of a biological response to a presentation are disclosed. An example apparatus includes at least one memory and processor circuitry to execute instructions to identify trough-to-peak instances in first galvanic skin response (GSR) data for a first subject, the first GSR data collected from the first subject during exposure of the first subject to media content during a period of time; assign trough-to-peak scores to corresponding ones of the trough-to-peak instances; associate the respective ones of the trough-to-peak scores with a time corresponding to the trough of each trough-to-peak instances; assign window scores to corresponding ones of windows in the period of time based on the highest trough-to-peak score occurring within the corresponding windows to generate a first GSR intensity profile; and identify an element of the media content for modification based on the first GSR intensity profile.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to project ratings for future broadcasts of media. Disclosed example methods include normalizing, with a processor, audience measurement data corresponding to media exposure data, social media exposure data and programming information associated with a future quarter to determine normalized audience measurement data. Disclosed example methods also include classifying a media asset based on the programming information to determine a media asset classification.

Abstract: Methods, apparatus, systems and articles of manufacture to monitor media are disclosed. An example apparatus includes memory; computer readable instructions; and processor circuitry to execute the computer readable instructions to: generate a plurality of errors by comparing (a) a plurality of watermarks adjusted by offsets and (b) reference data, the adjusted watermarks corresponding to watermark data with inaccurate timing information for media; identify an offset of the offsets based on the plurality of errors; and adjust timing information of a watermark of the watermarks using the offset to increase an accuracy of the timing information.

Abstract: Methods and apparatus to generate corrected online audience measurement data are disclosed. An example apparatus includes programmable circuitry to at least receive, from a server of a database proprietor, a first audience count, a second audience count, and a third audience count, the first audience count indicative of a first number of impressions corresponding to first network communications, the second network communications from second computing devices, and the third audience count indicative of a third number of impressions corresponding to ones of the first network communications and ones of the second network communications attributed to the first media category and the second media category accessed by the first demographic group, the first audience count including a server-generated duplicated audience count generated by the server of the database proprietor, and calculate a deduplication factor for the first demographic group using the first, second, and third audience counts.

Abstract: Disclosed examples access media impression data via one or more wireless communications, the media impression data including panel data obtained from a meter and impression information obtained after an access of media at a computing device; determine an audience deduplication based on the panel data; determine odds ratios for platform combinations based on the audience deduplication; determine posterior distributions for the media based on the odds ratios; perform a sequential odds ratio insertion technique based on the posterior distributions to determine unique audience sizes; align the unique audience sizes based on a constraint; and generate a report including the aligned unique audience sizes.

Abstract: An example method includes accessing a network communication at a database proprietor server, the network communication including one or more audience measurement entity cookie identifiers associated with one or more audience measurement entity cookies, the one or more audience measurement entity cookies from an audience measurement entity server and stored in a client device; generating one or more cookie mappings of the audience measurement entity cookies to respective one or more database proprietor cookies, the one or more database proprietor cookies from the database proprietor server and stored in the client device; and causing transmission of one or more re-direct messages to cause the client device to send the one or more cookie mappings in a batch to the audience measurement entity server, a re-direct message of the one or more re-direct messages including a first database proprietor cookie identifier and a first audience measurement entity cookie identifier.

Abstract: Example apparatus disclosed herein are to compare first monitored media signatures associated with an advertisement block to a plurality of sequences of monitored media signatures associated with a first time period; determine a start boundary and an end boundary of a first advertisement in the advertisement block based on the comparison of the first monitored media signatures and the plurality of sequences of monitored media signatures, the first advertisement associated with second monitored media signatures representative of a subset of the first monitored media signatures between the start boundary and the end boundary; generate an entry in an advertisement relationship graph for the second monitored media signatures, the entry to map second monitored media signatures to the first advertisement; and credit media exposure to the first advertisement based on the second monitored media signatures in the advertisement relationship graph.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for identification of streaming activity and source for cached media on streaming devices. An example system stores, in a content identification information library, first content identification information of a first media presentation, wherein the first media presentation is a streamed media presentation; inspects a network connection of a media streaming device for network activity associated with a second media presentation; determine, in response to an absence of the network activity, the second media presentation is a cached media presentation; infers a streaming source of the second media presentation by matching second content identification information of the second media presentation with the first content identification information of the first media presentation; and generates a second media credit for the second media presentation that includes an inferred streaming source identifier.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for editing tuning data collected via automated content recognition. Examples include determining whether a time conflict exists between first tuning data corresponding to a first tuning event and second tuning data corresponding to a second tuning event. Examples also include that, in response to determining that the time conflict exists, creating a third tuning event based on the first tuning data, the second tuning data, and one or more criteria. Examples also include that modifying at least one of the first tuning event or the second tuning event based on the third tuning event. Examples also include that crediting a media presentation by the presentation device based on edited tuning data, the edited tuning data including the first modified tuning event, the second modified tuning event, and the third tuning event.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to identify sponsored media in a Document Object Model. An example method includes determining if a first child node in a document object model is a sponsored media node, including to identify if the first child node is an element node, detecting if the first child node is of a valid element node type, and comparing the first child node to one or more geometric thresholds corresponding to the sponsored media node.

Abstract: Methods, apparatus, and articles of manufacture are disclosed to estimate population reach from marginal ratings with missing information. An example apparatus includes a pseudo universe calculator to (i) determine a first pseudo universe estimate for a first audience of media corresponding to a first union of first margins, the first margins corresponding to known audience totals, and (ii) determine a second pseudo universe estimate for a second audience of the media corresponding to a second union of second margins, the determination based on an audience constant, the second margins including a margin corresponding to an unknown audience total. The example apparatus also includes a reach calculator to (i) determine an estimate of the unknown audience total of the second audience based on the second pseudo universe estimate for the second audience, and (ii) determine a reach estimate for the second union based on the first and second pseudo universe estimates.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to optimize projection of big data beyond its footprint. An example apparatus includes memory, instructions, and processor circuitry to access panel audience sizes corresponding to subscribers of a media provider, a subset of the subscribers of the media provider, and corresponding to a media network determine a relative percent difference between the third panel audience size and the fourth panel audience size, when the relative percent absolute difference satisfies a first threshold, determine percentages of demographic groups represented in the panel audience sizes, determine differences associated with the demographic groups, and when at least one of the differences corresponding to at least one of the demographic groups satisfies a second threshold, determine the subscribers, the subset of the subscribers, and the at least one of the demographic groups as useable to determine an audience size of the media network.

Abstract: Methods, apparatus, and systems are disclosed for census and panel matching using Hypertext Transfer Protocol (HTTP) headers. An example apparatus includes memory, instructions in the apparatus, and processor circuitry to execute the instructions transmit a first session identifier in an HTTPS header property of a network message to a proxy server, the proxy server to parse the first session identifier from the HTTPS header property, and transmit a second session identifier in the HTTPS header property when the second session identifier is different from the first session identifier, wherein the first session identifier or the second session identifier is transmitted to a monitoring entity, the monitoring entity associating the first session identifier or the second session identifier with at least a panel identifier.

Abstract: Systems, methods, and apparatus to monitor mobile Internet activity are disclosed. An example apparatus includes at least one memory, machine-readable instructions, programmable circuitry to execute the machine-readable instructions to at least assign a first port of a proxy server to a mobile device associated with a panelist, cause transmission of configuration data to the mobile device to instruct the mobile device to transmit future requests the first port of the proxy server, obtain a first request for media on the first port originating from the mobile device, and after a determination that the first request originated from an Internet Protocol (IP) address associated with an IP address range representative of devices on a cellular network, service the first request, generate a data association, request the media from an Internet media provider identified in the first request, and cause transmission of the media to the mobile device.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to perform a self-test of a wireless networking device. Examples disclosed herein include communication controller circuitry to cause the first WNIC to obtain a plurality of data packets from a second WNIC at a frequency. Examples herein further include signal strength determination circuitry to determine a received signal strength indicator (RSSI) value for an antenna of the first WNIC. Examples herein further include performance determination circuitry to increment a counter associated with the antenna when the RSSI value does not satisfy a first threshold and report an error associated with the antenna to a back office facility when the counter associated with the antenna does not satisfy a second threshold.

Abstract: Methods and apparatus to determine probabilistic media viewing metrics are disclosed herein. An example apparatus includes memory including machine reachable instructions; and processor circuitry to execute the instructions to calculate a first probability for respective ones of a plurality of panelists as having viewed media based on viewing data, the viewing data including incomplete viewing data for one or more of the panelists relative to the media; identify respective ones of a plurality of panelists as included in a demographic subgroup based on demographic data for the panelists; assign a sampling weight to the respective ones of the plurality of panelists based on the demographic data; and calculate a second probability of the demographic subgroup having viewed the media based on the first probabilities and the sampling weights for the respective ones of the plurality of panelists in the demographic subgroup.

Abstract: Methods, apparatus, and systems are disclosed to generate media exposure maps of media environments. An example apparatus includes memory and processor circuitry to execute instructions to at least: group first locations into a first cluster and second locations into a second cluster, ones of the first locations and the second locations based on at least one of corresponding angle of arrival measurements or corresponding angle of departure measurements, determine a first duration corresponding to the first cluster and a second duration corresponding to the second cluster based on timestamps of the first locations and the second locations, and generate a map based on at least one of the first cluster or the second cluster in response to one of the first duration or the second duration meeting a threshold duration and corresponding to a monitored data, the map to represent an area of media exposure in a media presentation environment.