移动手机市场分析，主要了解人们在日常生活中如何使用智能手机，人们如何使用智能手机进行多任务，智能手机在购物中有哪些活动等等。-The mobile phone market, mainly to learn how to use smart phones in everyday life, how people use smartphones to multitask, smartphone shopping activities.

考虑多任务聚类试图以他们的同时提高多任务的聚类性能关系。大多数现有的多任务聚类算法陷入生成聚类的类型，并没有被转化为凸优化问题。本文提出了两个凸的判别任务聚类（DMTC）目的地址的问题。-Multitask clustering tries to improve the clustering performance of multiple tasks simultaneously by taking their relationship into account. Most existing m