The applications each user used are the direct indicator of user’s interests in Mobile Internet. Different category of visited applications shows distinct preference of mobile users. In this part, we present the application usage pattern in Mobile Internet. We group users into different “interest cluster” according to their dominant application usage pattern and study the difference between these clusters. In addition, we further discover the diversity of application usage (user visit many applications or stick to very few application) for each application category.
Fig. 8 shows the CDF of visited application categories for users. In average, the number of applications one user visited in the week is 7 and each user visited 5 different application categories per day.