Methods and apparatus to
US11089365B2 Патенты
Methods and apparatus to calibrate media ratings based on return path data are disclosed . An apparatus includes a processor and memory including instructions that, when executed , cause the processor to : determine an initial rating for the media provided in a first geographic area based on return path data ( RPD ) tuning information obtained from RPD devices in subscriber households in the first geographic area ; determine a first panelist rating for the media provided in a second geographic area based on first panel tuning information obtained from first metering devices in a first subset o
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