Based on generalized run-off triangle, we introduce multiplicative model and its marginal-sum estimation in chapter 2. We get that the marginal-sum estimation is the chain ladder estimation.
基于一般的流量三角形,我们在第二章中提出了乘法模型及边际和估计,并证明了在该模型下,参数的边际和估计就是链梯法估计。
Beyond it's shores there are two dark silhouettes in the water, the islands Gilli Aire and Gilli Meno. Far off in the distance, looking like a shadow, rises the dark triangle of Mt. Bromo in Bali.
龙目岛在我们眼前展开,连绵不断的一片绿,眺望过去是海滨,那里有两个小山似的轮廓突出水面,那是两个吉利小岛aire和Meno,更远的地方,有个朦胧的影子,黑色的三角形,那是巴厘岛的阿贡(agung)火山。
Berlitz (fresh off books on Atlantis and the Bermuda Triangle), warned that 1999 could inflict flood, famine, pollution and a shift of Earth's magnetic poles.
伯利兹(最近出了关于亚特兰蒂斯和百慕大三角的新书)警告说,1999年人类将遭受洪水、饥荒、污染和地球磁极互换的灾难。
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