Before revision:  We observed that the machine-learning models led up to a 40 \% improvement in receptivity as compared to the control model. Further, we evaluated the temporal dynamics of the different models and observed that receptivity to messages from the adaptive \\%DIF > improvement in receptivity as compared to the control model.
After revision:  We observed that the machine-learning models led up to a 40 \\%DIF > improvement in receptivity as compared to the control model.