Systems, methods, and apparatus to identify linear and non-linear media presentations

A system to automatically determine whether a media presentation is a linear media presentation or a non-linear media presentation, the system comprising:

• a media monitoring device to:
• electronically monitor media presentation of first media;
• and
• generate at least one of an audio fingerprint or a watermark code associated with the media presentation of the first media, the audio fingerprint based on an audio characteristic of the first media electronically measured at discrete times by the media monitoring device;
• a log generator to:
• access the at least one of the audio fingerprint or the watermark code generated by the media monitoring device;
• identify first media identifiers of the first media from the at least one of the audio fingerprint or the watermark code by matching the at least one of the audio fingerprint or the watermark code to a reference audio fingerprint or a reference watermark code in a reference database;
• generate a media presentation log for the media presentation of the first media, the media presentation log including first media identifiers of the first media and first times at which the first media was presented;
• and
• generate a reference log including second media identifiers of second media and second times at which the second media was presented as a linear media presentation;
• a log comparator to compare the media presentation log to the reference log to determine a duration associated with matches between ones of the first media identifiers and ones of the second media identifiers, the matches between the ones of the first media identifiers and the ones of the second media identifiers being in a same order in the media presentation log and the reference log, the duration based on at least one of the first times or the second times;
• and
• a presentation classifier to classify the media presentation of the first media as a linear media presentation when the duration satisfies a threshold.