衡量业绩的指标中，特雷诺比率那块儿，有个T平方TRp➖（Rm➖Rf），这个是啥知识点？麻烦老师讲一下吧

老师这道题为什么和官网不一样，官网是：A quantitative analyst at a proprietary trading firm is incorporating unsupervised machine learning (ML) algorithms into the firm’s technical analysis of equities by using K-means clustering. The clustering algorithm will be applied to continuous volatility data in order to group observations into clusters that can be used to identify the current market regime. Since clusters close to each other are likely to exhibit similar characteristics, the analyst measures the distances between the observations within each cluster and the centroid of that cluster. If the analyst wants to ensure that the minimum distance is obtained for the continuous data clusters when applying the K-means algorithm, which measure should be used to achieve the desired outcome? A.Euclidean distance B.Manhattan distance C.Cook’s distance D.Gini measure麻烦解答一下

这里的EE是不是也应该是现值？

老师可以举一个计算kurtosis的例子吗，想看一下计算过程，就是用这个公式怎么计算

抵押能不能缓释第一条说依赖时间，最后一条说依赖交易类型和交易对手？到底依赖哪个？都依赖？

loss rate是 1- recover rare么？是LGD么？为什么没有风险LR会接近于PD?

老师，这里a和c是相反的意思吧？两个都错吗

老师，巴塞尔2.5对市场风险的修改都是针对内部模型法的吗？

这老师为啥还边给别的学生互动变讲课，花钱买这个课能不能搞的专业点啊？

老师，选项d没有懂。basel3是引入了什么指标？