问题如下图:
选项:
A.
B.
C.
D.
解释:
1.A应该是既是缺点也是优点吧?
2.D为什么错误呢?LDA方法对于不同类型的loss使用不同的分布,是可以看得到尾部情况的呀。
NO.PZ2019052001000028问题如下The loss stribution approa(L) mols losses with respeto both frequenanseverity with the goof termining the appropriate level of capital. This methoalso faces severchallenges. Whiof the following options is not a saantage of L? A.The input of L is historict B.The ta collection periois likely to relatively short. C.If there is a major change in the economic situation in the future, historicta mnot applicable to future situations. It's fficult for L to capture the fat-tail.A is correct. 考点loss stribution approa(L) 定性解析BC是L方法面临的问题。只有A,A是L模型的优点。使用历史数据不是局限性么,A与C表述的是同一件事。算了,这个题目好像出的不够精准。
NO.PZ2019052001000028 正因为A L用的历史数据 才有C 如果情况变动 历史不能代表未来呀 就是来问问L的优点A要咋理解。。。既是优点又是缺点吗?
NO.PZ2019052001000028 我看了之前助教老师的回复。。 讲义41页拿捏了。。 但。。L和AMA什么关系呢? L是不是就是分别估计severity和freq 然后卷积一下。。 那AMA不也是这个吗。。。
NO.PZ2019052001000028 请问A为什么理解为优点呢?
NO.PZ2019052001000028 The ta collection periois likely to relatively short. If there is a major change in the economic situation in the future, historicta mnot applicable to future situations. It's fficult for L to capture the fat-tail. A is correct. 考点loss stribution approa(L) 定性 解析BC是L方法面临的问题。只有A,A是L模型的优点。老师,麻烦能帮忙再一下C吗?