A Self-Attention Network for Hierarchical Data Structures with an Application to Claims Management

Leander L\"ow, Martin Spindler and Eike Brechmann

Papers from arXiv.org

Abstract: Insurance companies must manage millions of claims per year. While most of these claims are non-fraudulent, fraud detection is core for insurance companies. The ultimate goal is a predictive model to single out the fraudulent claims and pay out the non-fraudulent ones immediately. Modern machine learning methods are well suited for this kind of problem. Health care claims often have a data structure that is hierarchical and of variable length. We propose one model based on piecewise feed forward neural networks (deep learning) and another model based on self-attention neural networks for the task of claim management. We show that the proposed methods outperform bag-of-words based models, hand designed features, and models based on convolutional neural networks, on a data set of two million health care claims. The proposed self-attention method performs the best.

New Economics Papers: this item is included in nep-big, nep-cmp and nep-ias
Date: 2018-08
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