MEDIA MONITORING BASED ON PREDICTIVE SIGNATURE CACHING

Methods, apparatus, systems and articles of manufacture for media monitoring based on predictive signature caching are disclosed. Disclosed example methods to monitor media via a meter include comparing, at the meter, a set of site signatures generated by the meter for a first time period with a first set of reference signatures representative of reference media predicted to be presented during the first time period. Such example methods also include, when a first subset of the site signatures is determined to match a first subset of reference signatures from the first set, reporting, via the meter, metering data indicating that first reference media represented by the first subset of reference signatures was presented during the first time period. Such example methods further include, when the set of site signatures fails to match the first subset of reference signatures, reporting, via the meter, the set of site signatures.