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arXiv 2007.03833stat.CO
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近似贝叶斯计算拟合和比较保险损失模型

Approximate Bayesian Computations to fit and compare insurance loss models

Pierre-Olivier Goffard, Patrick J. Laub

摘要:

近似贝叶斯计算(ABC)是一种通过比较观测数据和模拟数据来校准和选择模型的统计学习技术。这种技术绕过了可能性的使用,只需要从感兴趣的模型生成合成数据的能力。我们应用ABC来使用汇总数据拟合和比较保险损失模型。提出了一种最先进的ABC在Python中的实现。它使用序贯蒙特卡罗从后验分布和瓦瑟斯坦距离比较观察到的和合成的数据。

英文摘要:

Approximate Bayesian Computation (ABC) is a statistical learning technique to calibrate and select models by comparing observed data to simulated data. This technique bypasses the use of the likelihood and requires only the ability to generate synthetic data from the models of interest. We apply ABC to fit and compare insurance loss models using aggregated data. A state-of-the-art ABC implementation in Python is proposed. It uses sequential Monte Carlo to sample from the posterior distribution and the Wasserstein distance to compare the observed and synthetic data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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