论文标题
基于T-SNE维度降低的汽车保险风险预测
Prediction of Auto Insurance Risk Based on t-SNE Dimensionality Reduction
论文作者
论文摘要
对保单持有人的正确风险估计对汽车保险公司具有重要意义。尽管该领域中使用的当前工具在实践中已被证明是非常有效和有益的,但我们认为,汽车保险风险估算过程中仍然有很大的开发和改进空间。为此,我们开发了一个基于神经网络的组合以及降低降低技术T-SNE(T-SNENICE的随机邻居嵌入)的框架。这使我们能够视觉地表示风险的复杂结构作为二维表面,同时仍保留特征空间中局部区域的性质。所获得的结果基于实际保险数据,揭示了高风险保单持有人之间的明显对比,并且确实改善了保险公司执行的实际风险估计。由于该方法中投资组合的可访问性,我们认为该框架可能对汽车保险公司有利,既是主要风险预测工具,又是其他方法中的附加验证阶段。
Correct risk estimation of policyholders is of great significance to auto insurance companies. While the current tools used in this field have been proven in practice to be quite efficient and beneficial, we argue that there is still a lot of room for development and improvement in the auto insurance risk estimation process. To this end, we develop a framework based on a combination of a neural network together with a dimensionality reduction technique t-SNE (t-distributed stochastic neighbour embedding). This enables us to visually represent the complex structure of the risk as a two-dimensional surface, while still preserving the properties of the local region in the features space. The obtained results, which are based on real insurance data, reveal a clear contrast between the high and the low risk policy holders, and indeed improve upon the actual risk estimation performed by the insurer. Due to the visual accessibility of the portfolio in this approach, we argue that this framework could be advantageous to the auto insurer, both as a main risk prediction tool and as an additional validation stage in other approaches.