The Nielsen Comapny (us), LLC

Shuangxing Chen

Jonathan Lee Sullivan

Molly Poppie

David J Kurzynski

Balachander Shankar

Samantha M Mowrer

Paul J Chimenti

Remy Spoentgen

Rachel Worth Olson

John Charles Coughlin

Christine Heiss

Example apparatus disclosed herein include a return path data classifier to classify a first viewing period associated with segments of return path data received from a set top box into tuning classifications based on the segments of the return path data; calculate a total reported tuning duration for the first viewing period when the first viewing period is classified as live or playback tuning; and compare the total reported tuning duration to a duration threshold to determine whether the segments of return path data associated with the first viewing period are valid. The example apparatus also includes a return path data rectifier to rectify missing tuning data associated with a second viewing period based on tuning data included in the segments of return path data associated with the first viewing period when the segments of the return path data associated with the first viewing period are determined to be valid.

Methods and apparatus to calibrate return path data for audience measurement

Growing community of inventors

Redwood City, CA, United States of America

Shuangxing Chen