Table 2: Video A is a lecture video (http://www.youtube.com/watch?v=8LebAtvulIY). The pulse width is 60 seconds and the smoothing window is 60 seconds. The pulse modeling is reported with respect to the center of each pulse.

712589.table.001

AReference pulse center (sec)User activity pulse center (sec)

S14344
S2150
S3187178
S4358365
S5561530