Net asset profit margin is usually regarded as a key data used to value a company. However, this data has a lof of flaws, like time, risk, valuing and so on.

净资产收益率通常被视为是评价一家上市公司的关键指标，但它存在着时效性、风险性、价值性等方面的缺陷，仅靠它来评判上市公司发展潜力有可能走入误区。

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As I thought, college life must be relaxed, and there should be just few classes every day. Also I may own a lof of spare time and the courses should be very easy.

本来以为大学生活十分轻松，每天只要上很少的课，有许多空余时间，课程也十分轻松。

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It uses local outlier mining method to count the Local Outlier Factor(LOF) of the outlier candidated object and detects anomaly attacks.

采用局部离群挖掘方法计算离群候选对象的离群因子，检测出异常攻击。

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