The more the small probability events happen, the more the impact to text categorization results.

小概率事件发生的情况越多，对文本分类的结果影响也就越大。

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The calculation amount is huge and the convergence velocity is low, especially in the calculating of small probability events.

但是该法计算量大，收敛速度慢，尤其是对小失效概率问题。

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Therefore, the small probability of extreme events of great value-the tail risks should call peoples' attention.

所以，对小概率大数值的极端尾部风险事件要引起人们的高度重视。

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By contrast, in fat-tailed distributions, the median is extremely small compared to the mean, meaning that the probability of infrequent events is enormous.

FORBES: The Case for Climate-Change Alarmism

The probability of any one of the above-mentioned events (and many more that could be added to a list of potential triggers) may be small in a given year, but the combined probability of at least one or more of these events happening in the next three years is high.

FORBES: What's The Trigger That Will Cause The Fed To Act?