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arXiv 2207.00524q-fin.CPq-fin.MF
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基于深度学习求解随机波动率下的障碍期权

Solving barrier options under stochastic volatility using deep learning

Weilong Fu, Ali Hirsa

摘要:

我们开发了一种无监督的深度学习方法来解决Bergomi模型下的障碍期权。神经网络作为近似的选项表面,并进行训练,以满足PDE以及边界条件。通过在神经网络中加入两个奇异项来处理执行价格和障碍价格水平上的非光滑和不连续支付,使神经网络能够模拟短期内障碍期权的渐近行为.在此之后,香草期权和障碍期权的定价在一个单一的框架。此外,神经网络被用来处理在Bergomi模型的函数输入的高维数。一旦经过训练,神经网络解决方案就会产生快速准确的选项值。

英文摘要:

We develop an unsupervised deep learning method to solve the barrier options under the Bergomi model. The neural networks serve as the approximate option surfaces and are trained to satisfy the PDE as well as the boundary conditions. Two singular terms are added to the neural networks to deal with the non-smooth and discontinuous payoff at the strike and barrier levels so that the neural networks can replicate the asymptotic behaviors of barrier options at short maturities. After that, vanilla options and barrier options are priced in a single framework. Also, neural networks are employed to deal with the high dimensionality of the function input in the Bergomi model. Once trained, the neural network solution yields fast and accurate option values.

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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