ABSTRACT
With the development of mobile devices, sensors, the Internet of Things, wearable devices, cloud computing, more and more people are accustomed to use smart portable devices in the mobile Internet when they have questions or in free time. Users want to get the useful information (service) quickly at any time, any place through a wireless network. If the product (service) can provide users with accurate content, predict user’s preferences, Internet company can increase consumers, improve the consumer satisfaction.
